Fluoxetine interactions

Fluoxetine (Prozac, Sarafem), an SSRI has 318 documented interactions across the FDA labels and fact sheets we index: 80 major, 195 moderate, 42 minor, and 1 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This drug page is a starting point, not a verdict for your situation.

Major interactions (80)

  • AmiodaroneantiarrhythmicMajor

    Reserve the combination of amiodarone with other antiarrhythmic therapies that prolong the QTc to patients with life-threatening ventricular arrhythmias who are incompletely responsive to a single agent. (Amiodarone label, Warnings and precautions)

  • Amitriptylinetricyclic antidepressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • Serotonin Syndrome: Increased risk when coadministered with serotonergic agents (e.g., selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), triptans), but also during overdosage situations. (Amphetamine and dextroamphetamine label, Warnings and precautions)

  • Azithromycinmacrolide antibioticMajor

    This risk which can be fatal should be considered in patients with certain cardiovascular disorders including known QT prolongation or history torsades de pointes, those with proarrhythmic conditions, and with other drugs that prolong the QT interval. (Azithromycin label, Warnings and precautions)

  • BuprenorphineopioidMajor

    Serotonergic Drugs : Concomitant use may result in serotonin syndrome. (Buprenorphine label, Drug interactions)

  • Serotonergic Drugs: Concomitant use may result in serotonin syndrome. (Buprenorphine and naloxone label, Drug interactions)

  • Buspironeserotonergic drugMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • ButorphanolopioidMajor

    …medical attention if they ‎experience symptoms of hyperalgesia, including worsening pain, increased ‎sensitivity to pain, or new pain [see WARNINGS ; ADVERSE REACTIONS ].‎ Serotonin Syndrome Inform patients that butorphanol tartrate could cause a rare but potentially life-threatening condition resulting from concomitant administration of serotonergic drugs. (Butorphanol label, Precautions)

  • CarbamazepineanticonvulsantMajor

    Known hypersensitivity to tricyclic antidepressants ( 4 ) (Carbamazepine label, Contraindications)

  • CiprofloxacinfluoroquinoloneMajor

    Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval. (Ciprofloxacin label, Warnings and precautions)

  • CitalopramSSRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • CodeineopioidMajor

    Interactions with Drugs Affecting Cytochrome P450 Isoenzymes The effects of concomitant use or discontinuation of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with codeine are complex. (Codeine label, Boxed warning)

  • Cyclobenzaprinemuscle relaxantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • Dextromethorphanserotonergic drugMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • Dihydroergotamineergot alkaloidMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • DofetilideantiarrhythmicMajor

    Use with Drugs that Prolong QT Interval and Antiarrhythmic Agents The use of dofetilide in conjunction with other drugs that prolong the QT interval has not been studied and is not recommended. (Dofetilide label, Warnings)

  • Doxepintricyclic antidepressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • DronedaroneantiarrhythmicMajor

    …(12.3) ] • Concomitant use of drugs or herbal products that prolong the QT interval and might increase the risk of torsade de pointes, such as phenothiazine antipsychotics, tricyclic antidepressants, certain oral macrolide antibiotics, and Class I and III antiarrhythmics • Liver or lung toxicity related to the previous use of amiodarone • QTc interval >500 ms or… (Dronedarone label, Contraindications)

  • DuloxetineSNRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • EdoxabananticoagulantMajor

    Anticoagulants, Antiplatelets, Thrombolytics, and Selective Serotonin Reuptake Inhibitors (SSRIs)/Serotonin Norepinephrine Reuptake Inhibitors (SNRIs): Avoid concomitant use due to increased risk of bleeding. (Edoxaban label, Drug interactions)

  • EletriptantriptanMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • EscitalopramSSRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • FentanylopioidMajor

    • Serotonin Syndrome : Potentially life-threatening condition could result from concomitant serotonergic drug administration. (Fentanyl label, Warnings and precautions)

  • FlibanserinCNS depressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • Fluconazoleazole antifungalMajor

    Coadministration of other drugs known to prolong the QT interval and which are metabolized via the enzyme CYP3A4 such as erythromycin, pimozide, and quinidine are contraindicated in patients receiving fluconazole. (Fluconazole label, Contraindications)

  • FluvoxamineSSRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • FosfomycinantibioticMajor

    Avoid co-administration of CONTEPO with drugs known to prolong the QT interval. (Fosfomycin label, Drug interactions)

  • GranisetronQT-prolonging drugMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • Serotonin Syndrome Inform patients that hydrocodone bitartrate and acetaminophen tablets could cause a rare but potentially life-threatening condition resulting from concomitant administration of serotonergic drugs. (Hydrocodone and acetaminophen label, Precautions)

  • HydromorphoneopioidMajor

    Serotonergic Drugs : Concomitant use may result in serotonin syndrome. (Hydromorphone label, Drug interactions)

  • HydroxychloroquineQT-prolonging drugMajor

    Therefore, PLAQUENIL is not recommended in patients taking other drugs that have the potential to prolong the QT interval. (Hydroxychloroquine label, Warnings and precautions)

  • IloperidoneantipsychoticMajor

    Avoid the use of FANAPT in combination with any other drugs that prolong the QT interval [see Warnings and Precautions (5.3) ] . (Iloperidone label, Drug interactions)

  • IsoniazidantibioticMajor

    Serotonin Syndrome and MAOIs: Do not use MAOIs intended to treat psychiatric disorders with PROZAC or within 5 weeks of stopping treatment with PROZAC. (Fluoxetine label, Contraindications)

  • Itraconazoleazole antifungalMajor

    Co-administration with eliglustat is contraindicated in poor or intermediate metabolizers of CYP2D6 and in subjects taking strong or moderate CYP2D6 inhibitors. (Itraconazole label, Boxed warning)

  • Bradycardia may increase the risk of QT prolongation which may lead to severe ventricular arrhythmias, including torsade de pointes, especially in patients with risk factors such as use of QTc prolonging drugs [see Adverse Reactions ( 6.2 )] . (Ivabradine label, Warnings and precautions)

  • LevofloxacinfluoroquinoloneMajor

    Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval ( 5.11 , 8.5 ) (Levofloxacin label, Warnings and precautions)

  • If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • LevorphanolopioidMajor

    Serotonin Syndrome Inform patients that opioids could cause a rare but potentially life-threatening condition resulting from concomitant administration of serotonergic drugs. (Levorphanol label, Precautions)

  • LinezolidantibioticMajor

    In addition, do not start PROZAC in a patient who is being treated with linezolid or intravenous methylene blue ( 4.1 ) (Fluoxetine label, Contraindications)

  • LisdexamfetamineCNS stimulantMajor

    • Serotonin Syndrome: Increased risk when co-administered with serotonergic agents (e.g., SSRIs, SNRIs, triptans), but also during overdosage situations. (Lisdexamfetamine label, Warnings and precautions)

  • Lithiumserotonergic drugMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • LorazepambenzodiazepineMajor

    LOREEV XR should not be used in such patients without adequate antidepressant therapy. (Lorazepam label, Warnings and precautions)

  • MeperidineopioidMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • MethadoneopioidMajor

    Interactions with Drugs Affecting Cytochrome P450 Isoenzymes The concomitant use of METHADOSE with all cytochrome P450 3A4, 2B6, 2C19, 2C9 or 2D6 inhibitors may result in an increase in methadone plasma concentrations, which could cause potentially fatal respiratory depression. (Methadone label, Boxed warning)

  • Metoprololbeta blockerMajor

    CYP2D6 Inhibitors Monitor patients closely when the combination use of CYP2D6 inhibitor and metoprolol cannot be avoided. (Metoprolol label, Drug interactions)

  • MirtazapineantidepressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • MorphineopioidMajor

    Serotonergic Drugs: Concomitant use may result in serotonin syndrome. (Morphine label, Drug interactions)

  • Nortriptylinetricyclic antidepressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • OlanzapineantipsychoticMajor

    When using PROZAC and olanzapine in combination, also refer to Boxed Warning section of the package insert for Symbyax. (Fluoxetine label, Boxed warning)

  • OliceridineopioidMajor

    Serotonergic Drugs : Concomitant use may result in serotonin syndrome. (Oliceridine label, Drug interactions)

  • OndansetronQT-prolonging drugMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • OxycodoneopioidMajor

    Serotonergic Drug s: Concomitant use may result in serotonin syndrome. (Oxycodone label, Drug interactions)

  • OxymorphoneopioidMajor

    Serotonergic Drugs : Concomitant use may result in serotonin syndrome. (Oxymorphone label, Drug interactions)

  • ParoxetineSSRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • Serotonin Syndrome Inform patients that opioids could cause a rare but potentially life-threatening condition resulting from concomitant administration of serotonergic drugs. (Pentazocine and naloxone label, Precautions)

  • PhenelzineMAO inhibitorMajor

    Serotonin Syndrome and MAOIs: Do not use MAOIs intended to treat psychiatric disorders with PROZAC or within 5 weeks of stopping treatment with PROZAC. (Fluoxetine label, Contraindications)

  • PhenobarbitalbarbiturateMajor

    Drugs that Prolong the QT Interval : Avoid concomitant use. (Phenobarbital label, Drug interactions)

  • PitolisantQT-prolonging drugMajor

    The use of WAKIX should be avoided in patients with known QT prolongation or in combination with other drugs known to prolong the QT interval [see Drug Interactions ( 7.1 )]. (Pitolisant label, Warnings and precautions)

  • PromethazineantihistamineMajor

    …prolong, or intensify the sedative action of other central-nervous-system depressants, such as alcohol, sedatives/hypnotics (including barbiturates), narcotics, narcotic analgesics, general anesthetics, tricyclic antidepressants, and tranquilizers; therefore, such agents should be avoided or administered in reduced dosage to patients receiving promethazine HCl. (Promethazine label, Drug interactions)

  • PropafenoneantiarrhythmicMajor

    • Avoid use with other antiarrhythmic agents or drugs that prolong the QT interval. (Propafenone label, Warnings and precautions)

  • Prucaloprideserotonergic drugMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • RasagilineMAO inhibitorMajor

    Serotonin Syndrome and MAOIs: Do not use MAOIs intended to treat psychiatric disorders with PROZAC or within 5 weeks of stopping treatment with PROZAC. (Fluoxetine label, Contraindications)

  • RizatriptantriptanMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • SelegilineMAO inhibitorMajor

    Serotonin Syndrome and MAOIs: Do not use MAOIs intended to treat psychiatric disorders with PROZAC or within 5 weeks of stopping treatment with PROZAC. (Fluoxetine label, Contraindications)

  • SertralineSSRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • SolriamfetolCNS stimulantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • St. John's wortHerbal and supplementMajor

    Combining St. John's wort with antidepressants and other serotonergic drugs increases the risk of serotonin syndrome. (NCCIH, St. John's Wort)

  • SumatriptantriptanMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • TapentadolopioidMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • TetrabenazineVMAT2 inhibitorMajor

    Certain conditions may increase the risk for torsade de pointes or sudden death such as (1) bradycardia; (2) hypokalemia or hypomagnesemia; (3) concomitant use of other drugs that prolong the QTc interval; and (4) presence of congenital prolongation of the QT interval [see Warnings and Precautions ( 5.8 ), Clinical Pharmacology (12.2) ]. (Tetrabenazine label, Drug interactions)

  • TramadolopioidMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • TranylcypromineMAO inhibitorMajor

    Serotonin Syndrome and MAOIs: Do not use MAOIs intended to treat psychiatric disorders with PROZAC or within 5 weeks of stopping treatment with PROZAC. (Fluoxetine label, Contraindications)

  • TrazodoneantidepressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • VenlafaxineSNRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • VilazodoneSSRIMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • VortioxetineantidepressantMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

  • ZiprasidoneantipsychoticMajor

    …drugs, ziprasidone is contraindicated: • in patients with a known history of QT prolongation (including congenital long QT syndrome) • in patients with recent acute myocardial infarction • in patients with uncompensated heart failure Pharmacokinetic/pharmacodynamic studies between ziprasidone and other drugs that prolong the QT interval have not been performed. (Ziprasidone label, Contraindications)

  • ZolmitriptantriptanMajor

    If concomitant use of PROZAC with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 5.2 ) (Fluoxetine label, Warnings and precautions)

Moderate interactions (195)

  • AcarboseantidiabeticModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Acetazolamidecarbonic anhydrase inhibitorModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • Albuterolbeta-adrenergic agonistModerate

    Monoamine oxidase inhibitors and tricyclic antidepressants: Use with extreme caution. (Albuterol label, Drug interactions)

  • Alfuzosinalpha blockerModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • AlprazolambenzodiazepineModerate

    Coadministration of alprazolam and fluoxetine has resulted in increased alprazolam plasma concentrations and in further psychomotor performance decrement due to increased alprazolam levels. (Fluoxetine label, Drug interactions)

  • Amiloridepotassium-sparing diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • ApixabananticoagulantModerate

    Altered anticoagulant effects, including increased bleeding, have been reported when SNRIs or SSRIs are coadministered with warfarin. (Fluoxetine label, Drug interactions)

  • AripiprazoleantipsychoticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • ArmodafinilCNS stimulantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • AsenapineantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • AspirinNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • Aspirin and dipyridamoleantiplatelet agentModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • Atomoxetinenorepinephrine reuptake inhibitorModerate

    Strong CYP2D6 Inhibitors Prevention or Management With concomitant use of atomoxetine oral solution and a strong CYP2D6 inhibitor 1 , increase the titration interval [see Dosage and Administration (2.5) and Clinical Pharmacology (12.3) ] . (Atomoxetine label, Drug interactions)

  • Bisoprolol and hydrochlorothiazidebeta blockerModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • BrexpiprazoleantipsychoticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Brimonidinealpha-adrenergic agonistModerate

    Caution is advised in patients taking tricyclic antidepressants which can affect the metabolism and uptake of circulating amines. (Brimonidine label, Drug interactions)

  • BrivaracetamanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Budesonide and formoterolcorticosteroidModerate

    Monoamine oxidase inhibitors and tricyclic antidepressants: Use with extreme caution. (Budesonide and formoterol label, Drug interactions)

  • Bumetanideloop diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • BupropionantidepressantModerate

    Clinical studies of pimozide with other antidepressants demonstrate an increase in drug interaction or QT prolongation. (Fluoxetine label, Drug interactions)

  • Butalbital, acetaminophen, and caffeinebarbiturateModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • CanagliflozinSGLT2 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Cannabidiol (prescription)anticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • CariprazineantipsychoticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Carisoprodolmuscle relaxantModerate

    Since the sedative effects of carisoprodol and other CNS depressants (e.g., alcohol, benzodiazepines, opioids, tricyclic antidepressants) may be additive, appropriate caution should be exercised with patients who take more than one of these CNS depressants simultaneously. (Carisoprodol label, Warnings and precautions)

  • Carvedilolbeta blockerModerate

    CYP2D6 Inhibitors and Poor Metabolizers Interactions of carvedilol with potent inhibitors of CYP2D6 isoenzyme (such as quinidine, fluoxetine, paroxetine, and propafenone) have not been studied, but these drugs would be expected to increase blood levels of the R(+) enantiomer of carvedilol [see Clinical Pharmacology (12.3) ]. (Carvedilol label, Drug interactions)

  • CelecoxibNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • CenobamateanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • ChlordiazepoxidebenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • ChloroquineantimalarialModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • ChlorpromazineantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Chlorthalidonethiazide diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • CimetidineH2 blockerModerate

    …apparently through an effect on certain microsomal enzyme systems, has been reported to reduce the hepatic metabolism of warfarin-type anticoagulants, phenytoin, propranolol, nifedipine, chlordiazepoxide, diazepam, certain tricyclic antidepressants, lidocaine, theophylline, and metronidazole, thereby delaying elimination and increasing blood levels of these drugs. (Cimetidine label, Drug interactions)

  • Clarithromycinmacrolide antibioticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • ClobazambenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • ClonazepambenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Clonidinealpha-adrenergic agonistModerate

    Tricyclic antidepressants Clinical Implication Concomitant use of tricyclic antidepressants with clonidine can increase blood pressure and may counteract the hypotensive effects of clonidine. (Clonidine label, Drug interactions)

  • Clopidogrelantiplatelet agentModerate

    Nonsteroidal anti-inflammatory drugs (NSAIDs), warfarin, selective serotonin and serotonin norepinephrine reuptake inhibitors (SSRIs, SNRIs): Increases risk of bleeding. (Clopidogrel label, Drug interactions)

  • ClozapineantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • DabigatrananticoagulantModerate

    Altered anticoagulant effects, including increased bleeding, have been reported when SNRIs or SSRIs are coadministered with warfarin. (Fluoxetine label, Drug interactions)

  • DapagliflozinSGLT2 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Daridorexantsedative-hypnoticModerate

    Co-administration with other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol) increases the risk of CNS depression, which can cause daytime impairment. (Daridorexant label, Warnings and precautions)

  • DarifenacinanticholinergicModerate

    CYP2D6 Inhibitors No dosing adjustments are recommended in the presence of CYP2D6 inhibitors (for example, paroxetine, fluoxetine, quinidine and duloxetine) [see Clinical Pharmacology (12.3)] . (Darifenacin label, Drug interactions)

  • DesmopressinModerate

    …that may Increase Risk of Hyponatremia Concomitant administration of DESMODA with other drugs that may increase the risk of water intoxication with hyponatremia, (e.g., tricyclic antidepressants, selective serotonin re-uptake inhibitors, chlorpromazine, opiate analgesics, thiazide diuretics, NSAIDs, lamotrigine, sulfonylureas, particularly chlorpropamide, oxybutynin… (Desmopressin label, Drug interactions)

  • DeutetrabenazineVMAT2 inhibitorModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • DexmethylphenidateCNS stimulantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • DiazepambenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • DiclofenacNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • DicyclomineanticholinergicModerate

    …drugs including dicyclomine hydrochloride: amantadine, antiarrhythmic agents of Class I (e.g., quinidine), antihistamines, antipsychotic agents (e.g., phenothiazines), benzodiazepines, MAO inhibitors, narcotic analgesics (e.g., meperidine), nitrates and nitrites, sympathomimetic agents, tricyclic antidepressants, and other drugs having anticholinergic activity. (Dicyclomine label, Drug interactions)

  • Digoxindigitalis glycosideModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Diltiazemcalcium channel blockerModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Divalproex (valproate)anticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Dorzolamide and timololcarbonic anhydrase inhibitorModerate

    CYP2D6 inhibitors may potentiate systemic beta-blockade. (Dorzolamide and timolol label, Drug interactions)

  • DronabinolcannabinoidModerate

    Concomitant use of other drugs that cause dizziness, confusion, sedation, or somnolence such as CNS depressants may increase this effect (e.g., barbiturates, benzodiazepines, lithium, opioids, buspirone, scopolamine, antihistamines, tricyclic antidepressants, other anticholinergic agents, and muscle relaxants). (Dronabinol label, Warnings and precautions)

  • DulaglutideGLP-1 receptor agonistModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Dutasteride and tamsulosin5-alpha reductase inhibitorModerate

    Use caution in combination with moderate CYP3A4 inhibitors (e.g., erythromycin) or strong (e.g., paroxetine) or moderate CYP2D6 inhibitors, a combination of both CYP3A4 and CYP2D6 inhibitors, or known poor metabolizers of CYP2D6. (Dutasteride and tamsulosin label, Warnings and precautions)

  • EmpagliflozinSGLT2 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Empagliflozin and metforminSGLT2 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • EnoxaparinanticoagulantModerate

    Altered anticoagulant effects, including increased bleeding, have been reported when SNRIs or SSRIs are coadministered with warfarin. (Fluoxetine label, Drug interactions)

  • EpinephrinesympathomimeticModerate

    • Drugs that potentiate the effects of epinephrine include sympathomimetics, beta blockers, tricyclic antidepressants, MAO inhibitors, COMT inhibitors, clonidine, doxapram, oxytocin, levothyroxine sodium, and certain antihistamines. (Epinephrine label, Drug interactions)

  • Eplerenonealdosterone antagonistModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • Erythromycinmacrolide antibioticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • EslicarbazepineanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Esmololbeta blockerModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Eszopiclonesedative-hypnoticModerate

    Additive effects occur with concomitant use of other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol), including daytime use. (Eszopiclone label, Warnings and precautions)

  • Ethacrynic acidloop diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • EthosuximideanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • EtodolacNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • ExenatideGLP-1 receptor agonistModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • FelbamateanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • FesoterodineanticholinergicModerate

    In poor metabolizers for CYP2D6, representing a maximum CYP2D6 inhibition, C max and AUC of the active metabolite are increased 1.7- and 2-fold, respectively. (Fesoterodine label, Drug interactions)

  • FingolimodimmunosuppressantModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • FlecainideantiarrhythmicModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Fluticasone and salmeterolcorticosteroidModerate

    Monoamine oxidase inhibitors and tricyclic antidepressants: Use with extreme caution. (Fluticasone and salmeterol label, Drug interactions)

  • FondaparinuxanticoagulantModerate

    Altered anticoagulant effects, including increased bleeding, have been reported when SNRIs or SSRIs are coadministered with warfarin. (Fluoxetine label, Drug interactions)

  • Formoterolbeta-adrenergic agonistModerate

    • MAO inhibitors, tricyclic antidepressants and drugs that prolong QTc interval may potentiate effect on the cardiovascular system. (Formoterol label, Drug interactions)

  • Furosemideloop diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • GabapentinanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • GlimepiridesulfonylureaModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • GlipizidesulfonylureaModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • GlyburidesulfonylureaModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Glyburide and metforminsulfonylureaModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • GlycopyrrolateanticholinergicModerate

    Other Anticholinergic Drugs There is potential for an additive interaction between glycopyrrolate and concomitantly used anticholinergic drugs (e.g., tricyclic antidepressants, anti-epileptics, class I antiarrhythmics, anti­-spasmodics, amantadine) resulting in increased anticholinergic adverse reactions. (Glycopyrrolate label, Drug interactions)

  • HaloperidolantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • HeparinanticoagulantModerate

    Altered anticoagulant effects, including increased bleeding, have been reported when SNRIs or SSRIs are coadministered with warfarin. (Fluoxetine label, Drug interactions)

  • Hydrochlorothiazidethiazide diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • HydroxyzineantihistamineModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • IbuprofenNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • Indapamidethiazide diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • IndomethacinNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • Insulin aspartinsulinModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Insulin degludecinsulinModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Insulin detemirinsulinModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Insulin glargineinsulinModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Insulin lisproinsulinModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Insulin regular (human)insulinModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Ketoconazoleazole antifungalModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • KetorolacNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • LacosamideanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • LamotrigineanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Lemborexantsedative-hypnoticModerate

    Co-administration with other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol) increases the risk of CNS depression, which can cause daytime impairment. (Lemborexant label, Warnings and precautions)

  • Levalbuterolbeta-adrenergic agonistModerate

    Monoamine oxidase inhibitors (MAOs) or tricyclic antidepressants : May potentiate effect of albuterol on the cardiovascular system. (Levalbuterol label, Drug interactions)

  • LevetiracetamanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Levothyroxinethyroid hormoneModerate

    Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (Levothyroxine label, Drug interactions)

  • Lidocainelocal anestheticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Lidocaine and prilocainelocal anestheticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • LinagliptinDPP-4 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Liothyroninethyroid hormoneModerate

    Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and liothyronine sodium may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (Liothyronine label, Drug interactions)

  • LiraglutideGLP-1 receptor agonistModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Lisinopril and hydrochlorothiazideACE inhibitorModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • Lofexidinealpha-adrenergic agonistModerate

    Risk of QT Prolongation : Lofexidine tablets prolong the QT interval. (Lofexidine label, Warnings and precautions)

  • LoperamideQT-prolonging drugModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Losartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • LumateperoneantipsychoticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • LurasidoneantipsychoticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • MeloxicamNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • MetforminbiguanideModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • MethylphenidateCNS stimulantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • Metoclopramidedopamine antagonistModerate

    Examples quinidine, bupropion, fluoxetine, and paroxetine Monoamine Oxidase Inhibitors Clinical Impact Increased risk of hypertension [see Warnings and Precautions ( 5.5 )] . (Metoclopramide label, Drug interactions)

  • Metolazonethiazide diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • MetronidazoleantibioticModerate

    Drugs that Prolong the QT Interval QT prolongation has been reported, particularly when metronidazole was administered with drugs with the potential for prolonging the QT interval. (Metronidazole label, Drug interactions)

  • MidazolambenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • ModafinilCNS stimulantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • MoxifloxacinfluoroquinoloneModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • NabumetoneNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • NalbuphineopioidModerate

    Serotonergic Drugs The concomitant use of opioids with other drugs that affect the serotonergic neurotransmitter system, such as selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that effect the serotonin neurotransmitter system… (Nalbuphine label, Drug interactions)

  • Naltrexone and bupropionopioid antagonistModerate

    Clinical studies of pimozide with other antidepressants demonstrate an increase in drug interaction or QT prolongation. (Fluoxetine label, Drug interactions)

  • NaproxenNSAIDModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • Nebivololbeta blockerModerate

    Use with CYP2D6 Inhibitors Nebivolol exposure increases with inhibition of CYP2D6 [see Drug Interactions ( 7 ) ] . (Nebivolol label, Warnings and precautions)

  • Nifedipinedihydropyridine calcium channel blockerModerate

    CYP3A inhibitors such as fluconazole, itraconazole, clarithromycin, erythromycin, nefazodone, fluoxetine, saquinavir, indinavir, and nelfinavir may result in increased exposure to nifedipine when co-administered. (Nifedipine label, Drug interactions)

  • Nirmatrelvir and ritonavirantiviralModerate

    Antidepressants bupropion ↓ bupropion and active metabolite hydroxy-bupropion Monitor for an adequate clinical response to bupropion. trazodone ↑ trazodone Adverse reactions of nausea, dizziness, hypotension, and syncope have been observed following co-administration of trazodone and ritonavir. (Nirmatrelvir and ritonavir label, Drug interactions)

  • OfloxacinfluoroquinoloneModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • OxcarbazepineanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • PaliperidoneantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • PerampanelanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • PhentermineCNS stimulantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • Phentermine and topiramateCNS stimulantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, meperidine, methadone, buspirone, amphetamines, and St. (Fluoxetine label, Warnings and precautions)

  • PhenylephrinedecongestantModerate

    Agonistic Effects (increase in BIORPHEN blood pressure effect) can occur with monoamine oxidase inhibitors (MAOI), oxytocin and oxytocic drugs, tricyclic antidepressants, angiotensin and aldosterone, atropine, steroids, norepinephrine transporter inhibitors, ergot alkaloids. (Phenylephrine label, Drug interactions)

  • PhenytoinanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • PimavanserinantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • PioglitazonethiazolidinedioneModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Pioglitazone and metforminthiazolidinedioneModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Posaconazoleazole antifungalModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • PregabalinanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • PrimidoneanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • ProchlorperazineantipsychoticModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • Propranololbeta blockerModerate

    Impact of Other Drugs on Propranolol CYP2D6, CYP1A2 and CYP2C19 Inhibitors: CYP2D6 inhibitors (e.g. bupropion, fluoxetine, paroxetine, quinidine), CYP1A2 inhibitors (e.g., ciprofloxacin, enoxamine, fluvoxamine) and CYP2C19 inhibitors (e.g., fluconazole, fluvoxamine, ticlopidine) increase exposure to propranolol when co-administered with INNOPRAN XL. (Propranolol label, Drug interactions)

  • QuetiapineantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • RanolazineQT-prolonging drugModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • RepaglinidemeglitinideModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • RifampinantibioticModerate

    …5-HT3 Receptor Antagonists Ondansetron Decrease exposure Statins Metabolized by CYP3A4 Simvastatin Decrease exposure Thiazolidinediones Rosiglitazone Decrease AUC by 66% Tricyclic Antidepressants Nortriptyline A tuberculosis treatment regimen including rifampin (600 mg/day), isoniazid (300 mg/day), pyrazinamide (500 mg 3× per day), and pyridoxine (25 mg) was… (Rifampin label, Drug interactions)

  • RisperidoneantipsychoticModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • RitonavirantiretroviralModerate

    Antidepressants: nefazodone, selective serotonin reuptake inhibitors (SSRIs): e.g. fluoxetine, paroxetine, tricyclics: e.g. amitriptyline, nortriptyline ↑ antidepressants A dose decrease may be needed for these drugs when co-administered with ritonavir. (Ritonavir label, Drug interactions)

  • RivaroxabananticoagulantModerate

    Altered anticoagulant effects, including increased bleeding, have been reported when SNRIs or SSRIs are coadministered with warfarin. (Fluoxetine label, Drug interactions)

  • RufinamideanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Salmeterolbeta-adrenergic agonistModerate

    • Monoamine oxidase inhibitors and tricyclic antidepressants: Use with extreme caution. (Salmeterol label, Drug interactions)

  • ScopolamineanticholinergicModerate

    Concomitant use of other drugs that cause central nervous system (CNS) adverse reactions (e.g., alcohol, sedatives, hypnotics, opiates, and anxiolytics) or have anticholinergic properties (e.g., other belladonna alkaloids, sedating antihistamines, meclizine, tricyclic antidepressants, and muscle relaxants) may increase this effect [see Drug Interactions ( 7.1 )] . (Scopolamine label, Warnings and precautions)

  • SemaglutideGLP-1 receptor agonistModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • SitagliptinDPP-4 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Sitagliptin and metforminDPP-4 inhibitorModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Sodium oxybateCNS depressantModerate

    The concurrent use of Xyrem with other CNS depressants, including but not limited to opioid analgesics, benzodiazepines, sedating antidepressants or antipsychotics, sedating anti-epileptic drugs, general anesthetics, muscle relaxants, and/or illicit CNS depressants, may increase the risk of respiratory depression, hypotension, profound sedation, syncope, and… (Sodium oxybate label, Warnings and precautions)

  • SolifenacinanticholinergicModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Sotalolbeta blockerModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Spironolactonealdosterone antagonistModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • Spironolactone and hydrochlorothiazidealdosterone antagonistModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • The efficacy of tricyclic antidepressants can decrease when coadministered with sulfamethoxazole and trimethoprim. (Sulfamethoxazole and trimethoprim label, Drug interactions)

  • Suvorexantsedative-hypnoticModerate

    Co-administration with other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol) increases the risk of CNS depression. (Suvorexant label, Warnings and precautions)

  • TacrolimusimmunosuppressantModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Tamoxifenselective estrogen receptor modulatorModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Tamsulosinalpha blockerModerate

    Use with caution in combination with moderate inhibitors of CYP3A4, with strong or moderate inhibitors of CYP2D6, in patients known to be CYP2D6 poor metabolizers, or in combination with other cytochrome P450 inhibitors. (Tamsulosin label, Warnings and precautions)

  • TemazepambenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Terbutalinebeta-adrenergic agonistModerate

    Monoamine Oxidase Inhibitors and Tricyclic Antidepressants Terbutaline sulfate should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors or tricyclic antidepressants, or within 2 weeks of discontinuation of such agents, since the action of terbutaline sulfate on the vascular system may be potentiated. (Terbutaline label, Precautions)

  • TiagabineanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Timololbeta blockerModerate

    CYP2D6 Inhibitors Potentiated systemic beta-blockade (e.g., decreased heart rate) has been reported during combined treatment with CYP2D6 inhibitors (e.g., quinidine) and timolol. (Timolol label, Drug interactions)

  • TirzepatideGLP-1 receptor agonistModerate

    As is true with many other types of medication when taken concurrently by patients with diabetes, insulin and/or oral hypoglycemic, dosage may need to be adjusted when therapy with PROZAC is instituted or discontinued. (Fluoxetine label, Warnings and precautions)

  • Tizanidinemuscle relaxantModerate

    The CNS depressant effects of Zanaflex with alcohol and other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants) may be additive [see Drug Interactions ( 7.4 )] . (Tizanidine label, Warnings and precautions)

  • TolterodineanticholinergicModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • TopiramateanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Torsemideloop diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • Triamterenepotassium-sparing diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • Triamterene and hydrochlorothiazidepotassium-sparing diureticModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • TriazolambenzodiazepineModerate

    Benzodiazepines: Diazepam – increased t½, alprazolam - further psychomotor performance decrement due to increased levels ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Umeclidinium and vilanterolanticholinergicModerate

    • Monoamine oxidase inhibitors and tricyclic antidepressants: Use with extreme caution. (Umeclidinium and vilanterol label, Drug interactions)

  • ValbenazineVMAT2 inhibitorModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Valproic acidanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Valsartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • VardenafilPDE5 inhibitorModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • Verapamilcalcium channel blockerModerate

    Coadministration of fluoxetine with other drugs that are metabolized by CYP2D6, including certain antidepressants (e.g., TCAs), antipsychotics (e.g., phenothiazines and most atypicals), and antiarrhythmics (e.g., propafenone, flecainide, and others) should be approached with caution. (Fluoxetine label, Drug interactions)

  • VigabatrinanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

  • Viloxazinenorepinephrine reuptake inhibitorModerate

    CYP2D6 Substrates Clinical Impact Viloxazine is a weak inhibitor of CYP2D6, and increases the exposure of CYP2D6 substrates when coadministered [see Clinical Pharmacology (12.3) ] . (Viloxazine label, Drug interactions)

  • Voriconazoleazole antifungalModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • WarfarinanticoagulantModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • Zaleplonsedative-hypnoticModerate

    Coadministration with other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol) increases the risk of CNS depression. (Zaleplon label, Warnings)

  • Zolpidemsedative-hypnoticModerate

    Fluoxetine After multiple doses of zolpidem tartrate and fluoxetine an increase in the zolpidem half-life (17%) was observed. (Zolpidem label, Drug interactions)

  • ZonisamideanticonvulsantModerate

    Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (Fluoxetine label, Drug interactions)

Minor mentions (42)

  • AprepitantCYP3A4 inhibitorMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • AzelastineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • BeclomethasonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • BenztropineanticholinergicMinor

    Paralytic ileus, hyperthermia and heat stroke, all of which have sometimes been fatal, have occurred in patients taking anticholinergic-type antiparkinsonism drugs, including benztropine mesylate, in combination with phenothiazines and/or tricyclic antidepressants. (Benztropine label, Warnings)

  • BetamethasonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • BudesonidecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • CetirizineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • Cevimelinecholinergic agonistMinor

    Drugs which inhibit CYP2D6 and CYP3A3/4 also inhibit the metabolism of cevimeline. (Cevimeline label, Drug interactions)

  • ChlorpheniramineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • ClobetasolcorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • CyclosporineimmunosuppressantMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • DesonidecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • DexamethasonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • DimenhydrinateantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • DiphenhydramineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • DoxylamineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • EluxadolineopioidMinor

    Other Serotonergic Drugs The concomitant use of serotonergic drugs (including other SSRIs, SNRIs, triptans, tricyclic antidepressants, opioids, lithium, buspirone, amphetamines, tryptophan, and St. (Fluoxetine label, Drug interactions)

  • EverolimusimmunosuppressantMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • FexofenadineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • FludrocortisonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • FluocinonidecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • FluticasonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • HalobetasolcorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • HydrocortisonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • ImatinibCYP3A4 inhibitorMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • IvacaftorCYP3A4 inhibitorMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • LevocetirizineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • LoratadineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • LovastatinstatinMinor

    These include itraconazole, ketoconazole, posaconazole, voriconazole, the macrolide antibiotics erythromycin and clarithromycin, the ketolide antibiotic telithromycin, HIV protease inhibitors, boceprevir, telaprevir, the antidepressant nefazodone, or cobicistat-containing products. (Lovastatin label, Warnings)

  • MeclizineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • MethylprednisolonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • Mirabegronbeta-adrenergic agonistMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • MometasonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • OlopatadineantihistamineMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • Other Serotonergic Drugs The concomitant use of serotonergic drugs (including other SSRIs, SNRIs, triptans, tricyclic antidepressants, opioids, lithium, buspirone, amphetamines, tryptophan, and St. (Fluoxetine label, Drug interactions)

  • PalbociclibCYP3A4 inhibitorMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • PrednisolonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • PrednisonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • TerbinafineantifungalMinor

    Drugs predominantly metabolized by the CYP450 2D6 isozyme include the following drug classes: tricyclic antidepressants, selective serotonin reuptake inhibitors, beta-blockers, antiarrhythmics class 1C (e.g., flecainide and propafenone) and monoamine oxidase inhibitors Type B. (Terbinafine label, Drug interactions)

  • Ticagrelorantiplatelet agentMinor

    Additionally, in vitro studies have shown ketoconazole, a potent inhibitor of CYP3A4 activity, to be at least 100 times more potent than fluoxetine or norfluoxetine as an inhibitor of the metabolism of several substrates for this enzyme, including astemizole, cisapride, and midazolam. (Fluoxetine label, Drug interactions)

  • TriamcinolonecorticosteroidMinor

    Most patients improved promptly with discontinuation of fluoxetine and/or adjunctive treatment with antihistamines or steroids, and all patients experiencing these reactions were reported to recover completely. (Fluoxetine label, Warnings and precautions)

  • TrihexyphenidylanticholinergicMinor

    Monoamine oxidase inhibitors and tricyclic antidepressants possessing significant anticholinergic activity may intensify the anticholinergic effects of antidyskinetic agents because of the secondary anticholinergic activities of these medications. (Trihexyphenidyl label, Drug interactions)

No significant interaction reported (1)

  • Ropiniroledopamine agonistNo interaction

    Commonly Administered Drugs: Population analysis showed that commonly administered drugs (e.g., selegiline, amantadine, tricyclic antidepressants, benzodiazepines, ibuprofen, thiazides, antihistamines, anticholinergics) did not affect the clearance of ropinirole. (Ropinirole label, Drug interactions)

Check Fluoxetine against everything you take. Add your full list; every pair is checked at once.

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Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.