Lithium interactions

Lithium (Lithobid, Eskalith), a serotonergic drug has 168 documented interactions across the FDA labels and fact sheets we index: 60 major, 100 moderate, 7 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 (60)

  • AmiodaroneantiarrhythmicMajor

    Table 5: Amiodarone Drug Interactions Concomitant Drug Class/Name Examples Clinical Comment QT Prolonging Drugs class I and III antiarrhythmics, lithium, certain phenothiazines, tricyclic antidepressants, certain fluoroquinolone and macrolide antibiotics, azole antifungals, halogenated inhalation anesthetic agents Increased risk of Torsade de Pointes. (Amiodarone label, Drug interactions)

  • Amitriptylinetricyclic antidepressantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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)

  • 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 lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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)

  • CitalopramSSRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • CodeineopioidMajor

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

  • Cyclobenzaprinemuscle relaxantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • Dextromethorphanserotonergic drugMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • Dihydroergotamineergot alkaloidMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • Doxepintricyclic antidepressantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • DuloxetineSNRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • EletriptantriptanMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • EscitalopramSSRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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 lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • FluoxetineSSRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • FluvoxamineSSRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • Furosemideloop diureticMajor

    Avoid concomitant use with lithium. (Furosemide label, Drug interactions)

  • GranisetronQT-prolonging drugMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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)

  • If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • 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)

  • MeperidineopioidMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • MethadoneopioidMajor

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

  • MirtazapineantidepressantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • MorphineopioidMajor

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

  • Nortriptylinetricyclic antidepressantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • OlanzapineantipsychoticMajor

    For specific information about the contraindications of lithium or valproate, refer to the Contraindications section of the package inserts for these other products. (Olanzapine label, Contraindications)

  • OliceridineopioidMajor

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

  • OndansetronQT-prolonging drugMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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 lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • Prucaloprideserotonergic drugMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • RasagilineMAO inhibitorMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • RizatriptantriptanMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • SelegilineMAO inhibitorMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • SertralineSSRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • SolriamfetolCNS stimulantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium 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 lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • TapentadolopioidMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • TramadolopioidMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • TranylcypromineMAO inhibitorMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • TrazodoneantidepressantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • VenlafaxineSNRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • VilazodoneSSRIMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • VortioxetineantidepressantMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

  • ZiprasidoneantipsychoticMajor

    • Serotonin Syndrome: Increased risk when co-administered with other serotonergic agents, but also when taken alone. (Ziprasidone label, Warnings and precautions)

  • ZolmitriptantriptanMajor

    If concomitant use of lithium with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms. (Lithium label, Warnings and precautions)

Moderate interactions (100)

  • Acetazolamidecarbonic anhydrase inhibitorModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Amiloridepotassium-sparing diureticModerate

    Amiloride may be considered as a therapeutic agent for lithium-induced nephrogenic diabetes insipidus. (Lithium label, Warnings and precautions)

  • Amlodipinedihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • Amlodipine and benazeprildihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • AripiprazoleantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • AsenapineantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • AspirinNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Aspirin and dipyridamoleantiplatelet agentModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Atomoxetinenorepinephrine reuptake inhibitorModerate

    The risk is increased with concomitant use of other serotonergic drugs (including selective serotonin reuptake inhibitors, serotonin and norepinephrine reuptake inhibitors, triptans, tricyclic antidepressants, fentanyl, tramadol, tryptophan, buspirone, and St. (Lithium label, Warnings and precautions)

  • Azilsartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Increases in serum lithium concentrations and lithium toxicity. (Azilsartan label, Drug interactions)

  • BenazeprilACE inhibitorModerate

    Lithium: Symptoms of lithium toxicity ( 7.6 ) (Benazepril label, Drug interactions)

  • Bisoprolol and hydrochlorothiazidebeta blockerModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • BrexpiprazoleantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • Bumetanideloop diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • BupropionantidepressantModerate

    The risk is increased with concomitant use of other serotonergic drugs (including selective serotonin reuptake inhibitors, serotonin and norepinephrine reuptake inhibitors, triptans, tricyclic antidepressants, fentanyl, tramadol, tryptophan, buspirone, and St. (Lithium label, Warnings and precautions)

  • CalciumVitamin and mineralModerate

    Calcium supplements can reduce absorption of these medicines; take them several hours apart. (NIH Office of Dietary Supplements, Calcium)

  • CanagliflozinSGLT2 inhibitorModerate

    Sodium-Glucose Cotransporter 2 (SGLT2) inhibitor Clinical Impact: Concomitant use of lithium with an SGLT2 inhibitor may decrease serum lithium concentrations. (Lithium label, Drug interactions)

  • Candesartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Increases in serum lithium concentrations and toxicity ( 7 ). (Candesartan label, Drug interactions)

  • CaptoprilACE inhibitorModerate

    Lithium: Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving concomitant lithium and ACE inhibitor therapy. (Captopril label, Drug interactions)

  • CarbamazepineanticonvulsantModerate

    Methyldopa, Phenytoin and Carbamazepine Clinical Impact: Concomitant use may increase risk of adverse reactions of these drugs. (Lithium label, Drug interactions)

  • CariprazineantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • CelecoxibNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • ChlorpromazineantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • Chlorthalidonethiazide diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • ClozapineantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • DapagliflozinSGLT2 inhibitorModerate

    Sodium-Glucose Cotransporter 2 (SGLT2) inhibitor Clinical Impact: Concomitant use of lithium with an SGLT2 inhibitor may decrease serum lithium concentrations. (Lithium label, Drug interactions)

  • DiclofenacNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Diltiazemcalcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium 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)

  • EmpagliflozinSGLT2 inhibitorModerate

    Sodium-Glucose Cotransporter 2 (SGLT2) inhibitor Clinical Impact: Concomitant use of lithium with an SGLT2 inhibitor may decrease serum lithium concentrations. (Lithium label, Drug interactions)

  • Empagliflozin and metforminSGLT2 inhibitorModerate

    Sodium-Glucose Cotransporter 2 (SGLT2) inhibitor Clinical Impact: Concomitant use of lithium with an SGLT2 inhibitor may decrease serum lithium concentrations. (Lithium label, Drug interactions)

  • EnalaprilACE inhibitorModerate

    Monitor serum lithium levels frequently ( 7.4 ). (Enalapril label, Drug interactions)

  • Eplerenonealdosterone antagonistModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Ethacrynic acidloop diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • EtodolacNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Felodipinedihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • FosinoprilACE inhibitorModerate

    Lithium Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving ACE inhibitors during therapy with lithium. (Fosinopril label, Drug interactions)

  • HaloperidolantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • Hydrochlorothiazidethiazide diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • IbuprofenNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • IloperidoneantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • Indapamidethiazide diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • IndomethacinNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Insulin aspartinsulinModerate

    Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of Insulin Aspart Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. (Insulin aspart label, Drug interactions)

  • Insulin degludecinsulinModerate

    Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of Insulin Degludec Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. (Insulin degludec label, Drug interactions)

  • Insulin detemirinsulinModerate

    Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of LEVEMIR Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. (Insulin detemir label, Drug interactions)

  • Insulin glargineinsulinModerate

    Drugs that May Increase or Decrease the Blood Glucose Lowering Effect of Insulin Glargine-yfgn Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. (Insulin glargine label, Drug interactions)

  • Insulin lisproinsulinModerate

    Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of LYUMJEV Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. (Insulin lispro label, Drug interactions)

  • Insulin regular (human)insulinModerate

    Alcohol, Beta-blockers, Clonidine, and Lithium Salts Prevention or Management Monitor blood glucose more frequently and modify AFREZZA dosage, as clinically indicated, when used concomitantly with these drugs. (Insulin regular (human) label, Drug interactions)

  • Irbesartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Risk of lithium toxicity. (Irbesartan label, Drug interactions)

  • Isradipinedihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • KetorolacNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Levothyroxinethyroid hormoneModerate

    • Hypothyroidism and Hyperthyroidism: Monitor thyroid function regularly ( 5.7 ). (Lithium label, Warnings and precautions)

  • Liothyroninethyroid hormoneModerate

    • Hypothyroidism and Hyperthyroidism: Monitor thyroid function regularly ( 5.7 ). (Lithium label, Warnings and precautions)

  • LisinoprilACE inhibitorModerate

    Lithium: Symptoms of lithium toxicity ( 7.5 ) (Lisinopril label, Drug interactions)

  • Lisinopril and hydrochlorothiazideACE inhibitorModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Losartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Risk of lithium toxicity. (Losartan label, Drug interactions)

  • Losartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • LumateperoneantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • LurasidoneantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • MeloxicamNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Methimazoleantithyroid drugModerate

    • Hypothyroidism and Hyperthyroidism: Monitor thyroid function regularly ( 5.7 ). (Lithium label, Warnings and precautions)

  • MethyldopaantihypertensiveModerate

    Methyldopa, Phenytoin and Carbamazepine Clinical Impact: Concomitant use may increase risk of adverse reactions of these drugs. (Lithium label, Drug interactions)

  • Metolazonethiazide diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • MetronidazoleantibioticModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • MoexiprilACE inhibitorModerate

    Lithium: Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving ACE inhibitors during therapy with lithium. (Moexipril label, Drug interactions)

  • NabumetoneNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • 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

    The risk is increased with concomitant use of other serotonergic drugs (including selective serotonin reuptake inhibitors, serotonin and norepinephrine reuptake inhibitors, triptans, tricyclic antidepressants, fentanyl, tramadol, tryptophan, buspirone, and St. (Lithium label, Warnings and precautions)

  • NaproxenNSAIDModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Nicardipinedihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • Nifedipinedihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • Nisoldipinedihydropyridine calcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • Olmesartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Increases in serum lithium concentrations and lithium toxicity ( 7.4 ). (Olmesartan label, Drug interactions)

  • OnabotulinumtoxinAneuromuscular blockerModerate

    Neuromuscular Blocking Agents Clinical Impact: Lithium may prolong the effects of neuromuscular blocking agents. (Lithium label, Drug interactions)

  • PaliperidoneantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • PerindoprilACE inhibitorModerate

    Lithium: Increase serum lithium levels, symptoms of lithium toxicity. (Perindopril label, Drug interactions)

  • PhenytoinanticonvulsantModerate

    Methyldopa, Phenytoin and Carbamazepine Clinical Impact: Concomitant use may increase risk of adverse reactions of these drugs. (Lithium label, Drug interactions)

  • PimavanserinantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • ProchlorperazineantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • Propylthiouracilantithyroid drugModerate

    • Hypothyroidism and Hyperthyroidism: Monitor thyroid function regularly ( 5.7 ). (Lithium label, Warnings and precautions)

  • QuetiapineantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • QuinaprilACE inhibitorModerate

    Lithium Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving concomitant lithium and ACE inhibitor therapy. (Quinapril label, Drug interactions)

  • RamiprilACE inhibitorModerate

    Lithium: Use with caution (7.4). (Ramipril label, Drug interactions)

  • RisperidoneantipsychoticModerate

    • Encephalopathic Syndrome: Increased risk in patients treated with lithium and an antipsychotic. (Lithium label, Warnings and precautions)

  • Sacubitril and valsartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Increased risk of lithium toxicity. (Sacubitril and valsartan label, Drug interactions)

  • Spironolactonealdosterone antagonistModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Spironolactone and hydrochlorothiazidealdosterone antagonistModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Telmisartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Reversible increases in serum lithium concentrations and toxicity have been reported during concomitant administration of lithium with angiotensin II receptor antagonists including telmisartan. (Telmisartan label, Drug interactions)

  • TheophyllinemethylxanthineModerate

    May lower theophylline seizure threshold Lithium Theophylline increases renal lithium clearance. (Theophylline label, Drug interactions)

  • TinidazoleantibioticModerate

    Lithium: Monitor serum lithium concentrations ( 7.1 ) (Tinidazole label, Drug interactions)

  • TopiramateanticonvulsantModerate

    Monitor lithium levels if lithium is used with high-dose TROKENDI XR ( 7.8 ) (Topiramate label, Drug interactions)

  • Torsemideloop diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • TrandolaprilACE inhibitorModerate

    Lithium Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving concomitant lithium and ACE inhibitor therapy. (Trandolapril label, Drug interactions)

  • Triamterenepotassium-sparing diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Triamterene and hydrochlorothiazidepotassium-sparing diureticModerate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Valsartanangiotensin II receptor blocker (ARB)Moderate

    Lithium: Increases in serum lithium level and lithium toxicity ( 7.4 ) (Valsartan label, Drug interactions)

  • Valsartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Verapamilcalcium channel blockerModerate

    Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. (Lithium label, Drug interactions)

  • Viloxazinenorepinephrine reuptake inhibitorModerate

    The risk is increased with concomitant use of other serotonergic drugs (including selective serotonin reuptake inhibitors, serotonin and norepinephrine reuptake inhibitors, triptans, tricyclic antidepressants, fentanyl, tramadol, tryptophan, buspirone, and St. (Lithium label, Warnings and precautions)

Minor mentions (7)

  • Allopurinolxanthine oxidase inhibitorMinor

    Acetazolamide, Urea, Xanthine Preparations, Alkalinizing Agents Clinical Impact: Concomitant use can lower serum lithium concentrations by increasing urinary lithium excretion. (Lithium label, Drug interactions)

  • Butalbital, acetaminophen, and caffeinebarbiturateMinor

    Acetazolamide, Urea, Xanthine Preparations, Alkalinizing Agents Clinical Impact: Concomitant use can lower serum lithium concentrations by increasing urinary lithium excretion. (Lithium label, Drug interactions)

  • Febuxostatxanthine oxidase inhibitorMinor

    Acetazolamide, Urea, Xanthine Preparations, Alkalinizing Agents Clinical Impact: Concomitant use can lower serum lithium concentrations by increasing urinary lithium excretion. (Lithium label, Drug interactions)

  • IsoniazidantibioticMinor

    John’s Wort) and with drugs that impair metabolism of serotonin, i.e., MAOIs [see Drug Interactions ( 7.1 )]. (Lithium label, Warnings and precautions)

  • Serotonergic Drugs Clinical Impact: The concomitant use of opioids with other drugs that affect the serotonergic neurotransmitter system has resulted in serotonin syndrome [see Adverse Reaction ( 6.2)]. (Oxycodone and acetaminophen label, Drug interactions)

  • PentoxifyllinemethylxanthineMinor

    Acetazolamide, Urea, Xanthine Preparations, Alkalinizing Agents Clinical Impact: Concomitant use can lower serum lithium concentrations by increasing urinary lithium excretion. (Lithium label, Drug interactions)

  • PhentermineCNS stimulantMinor

    The safety and efficacy of combination therapy with phentermine and any other drug products for weight loss including prescribed drugs, over-the-counter preparations, and herbal products, or serotonergic agents such as selective serotonin reuptake inhibitors (e.g., fluoxetine, sertraline, fluvoxamine, paroxetine), have not been established. (Phentermine label, Warnings and precautions)

No significant interaction reported (1)

  • Valproic acidanticonvulsantNo interaction

    Lithium Co-administration of valproate (500 mg BID) and lithium carbonate (300 mg TID) to normal male volunteers (n = 16) had no effect on the steady-state kinetics of lithium. (Valproic acid label, Drug interactions)

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

Open in the checker

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.