Interacciones de Quinidina

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

…such as propranolol Cyclopropane or halogenated hydrocarbon anesthetics, such as halothane Antihistamines Thyroid hormones Diuretics Cardiac glycosides, such as digitalis glycosides Quinidine Drugs potentiating hypokalemic effects of epinephrine • Potassium depleting diuretics • Corticosteroids • Theophylline Epinephrine should not be used to counteract circulatory… (etiqueta de Adrenalina, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

If concomitant use of DYANAVEL XR with other serotonergic drugs or CYP2D6 inhibitors is clinically warranted, initiate DYANAVEL XR with lower doses, monitor patients for the emergence of serotonin syndrome during drug initiation or titration, and inform patients of the increased risk for serotonin syndrome. (etiqueta de Anfetamina, Advertencias y precauciones)

If serotonin syndrome occurs, discontinue ADDERALL XR and the CYP2D6 inhibitor [see Warnings and Precautions ( 5.8 ), Overdosage ( 10 )] . (etiqueta de Anfetamina y dexanfetamina, Interacciones medicamentosas)

The use of SAPHRIS should be avoided in combination with other drugs known to prolong QTc including Class 1A antiarrhythmics (e.g., quinidine, procainamide) or Class 3 antiarrhythmics (e.g., amiodarone, sotalol), antipsychotic medications (e.g., ziprasidone, chlorpromazine, thioridazine), and antibiotics (e.g., gatifloxacin, moxifloxacin). (etiqueta de Asenapina, Advertencias y precauciones)

Drug Class Drugs within class that are contraindicated with REYATAZ Alpha 1-adrenoreceptor antagonist Alfuzosin Anticonvulsants Carbamazepine, phenobarbital, phenytoin Antiarrhythmics Amiodarone (with ritonavir), quinidine (with ritonavir) Antimycobacterials Rifampin Antineoplastics Apalutamide, encorafenib, irinotecan, ivosidenib Antipsychotics Lurasidone (with… (etiqueta de Atazanavir, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

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. (etiqueta de Azitromicina, Advertencias y precauciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Examples paroxetine, fluoxetine, bupropion, quinidine Benzodiazepines and other Central Nervous System (CNS) Depressants Clinical Impact: Due to additive pharmacologic effect, the concomitant use of benzodiazepines or other CNS depressants including alcohol, increases the risk of respiratory depression, profound sedation, coma, and death. (etiqueta de Butalbital, ácido acetilsalicílico, cafeína y codeína, Interacciones medicamentosas)

Examples: paroxetine, fluoxetine, bupropion, quinidine Benzodiazepines and Other Central Nervous System (CNS) Depressants Clinical Impact: Due to additive pharmacologic effect, the concomitant use of benzodiazepines or other CNS depressants, including alcohol, can increase the risk of hypotension, respiratory depression, profound sedation, coma, and death. (etiqueta de Butalbital, paracetamol, cafeína y codeína, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval. (etiqueta de Ciprofloxacino, Advertencias y precauciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

QT Prolongation : Avoid clarithromycin tablets in patients with known QT prolongation or receiving drugs known to prolong the QT interval, ventricular arrhythmia ( torsades de pointes ), hypokalemia/hypomagnesemia, significant bradycardia, or taking Class IA or III antiarrhythmics ( 5.2 ) (etiqueta de Claritromicina, Advertencias y precauciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

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. (etiqueta de Codeína, Advertencia en recuadro)

P-glycoprotein The concomitant use of colchicine capsules and inhibitors of P-glycoprotein (e.g. clarithromycin, ketoconazole, cyclosporine, etc.) should be avoided due to the potential for serious and life-threatening toxicity [see Warnings and Precautions (5.3) and Clinical Pharmacology (12) ] . (etiqueta de Colchicina, Interacciones medicamentosas)

Avoid use of PRADAXA Capsules and P-gp inhibitors in patients with severe renal impairment (CrCl 15-30 mL/min) [see Drug Interactions (7.1) and Use in Specific Populations (8.6) ] . (etiqueta de Dabigatrán, Advertencias y precauciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

If serotonin syndrome occurs, discontinue dextroamphetamine sulfate and the CYP2D6 inhibitor [see Warnings , Overdosage ]. (etiqueta de Dexanfetamina, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Concomitant use of COMPLERA with drugs with a known risk to prolong the QTc interval of the electrocardiogram may increase the risk of Torsade de Pointes. (etiqueta de Emtricitabina, rilpivirina y tenofovir, Advertencias y precauciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Strong CYP3A inhibitor and P-gp inhibitor : Avoid coadministration. (etiqueta de Everolimus, Interacciones medicamentosas)

Drugs that Prolong the QT Interval : Avoid concomitant use. (etiqueta de Fenobarbital, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Use of quinidine has been associated with QT prolongation and rare occurrences of torsade de pointes. (etiqueta de Fluconazol, Interacciones medicamentosas)

Fosamprenavir calcium is contraindicated when coadministered with the following drugs: Alpha 1-adrenoreceptor antagonist: Alfuzosin Antiarrhythmics: Flecainide (with ritonavir ), propafenone (with ritonavir ) Antimycobacterial: Rifampin Antipsychotic: Lurasidone (with ritonavir ), pimozide Ergot derivatives: Dihydroergotamine, ergonovine, ergotamine, methylergonovine… (etiqueta de Fosamprenavir, Contraindicaciones)

(See DOSAGE and ADMINISTRATION. ) Because of the risk of QT prolongation and the potential for torsades de pointes, the use of FOSCAVIR should be avoided in combination with agents known to prolong the QT interval including Class IA (e.g., quinidine or procainamide) or Class III (e.g., dofetilide, amiodarone, sotalol) antiarrhythmic agents, phenothiazines, tricyclic… (etiqueta de Foscarnet, Interacciones medicamentosas)

Avoid co-administration of CONTEPO with drugs known to prolong the QT interval. (etiqueta de Fosfomicina, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Avoid the use of hydrocodone bitartrate and homatropine methylbromide while taking a CYP3A4 or CYP2D6 inhibitor. (etiqueta de Hidrocodona y homatropina, Interacciones medicamentosas)

Therefore, PLAQUENIL is not recommended in patients taking other drugs that have the potential to prolong the QT interval. (etiqueta de Hidroxicloroquina, Advertencias y precauciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Avoid the use of FANAPT in combination with any other drugs that prolong the QT interval [see Warnings and Precautions (5.3) ] . (etiqueta de Iloperidona, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Cardiac Dysrhythmias Life-threatening cardiac dysrhythmias and/or sudden death have occurred in patients using drugs such as, pimozide, methadone, or quinidine concomitantly with oral itraconazole and/or other CYP3A4 inhibitors. (etiqueta de Itraconazol, Advertencias y precauciones)

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 )] . (etiqueta de Ivabradina, Advertencias y precauciones)

QT Prolongation and Drug Interactions Leading to QT Prolongation Coadministration of the following drugs with ketoconazole is contraindicated: dofetilide, quinidine, pimozide, lurasidone, cisapride, methadone, disopyramide, dronedarone, ranolazine. (etiqueta de Ketoconazol, Advertencia en recuadro)

Since it cannot be excluded that Lanreotide Injection may have this effect, avoid other drugs mainly metabolized by CYP3A4 and which have a low therapeutic index (e.g., quinidine, terfenadine). (etiqueta de Lanreotida, Interacciones medicamentosas)

These conditions include patients with hypokalemia or hypomagnesemia, with congenital long QT syndrome, patients taking antiarrhythmic medicines or other medicinal products with known risk for QT prolongation/ Torsades de Pointes, and cumulative high-dose anthracycline therapy. (etiqueta de Lapatinib, Advertencias y precauciones)

Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval ( 5.11 , 8.5 ) (etiqueta de Levofloxacino, Advertencias y precauciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

If concomitant use of VYVANSE with other serotonergic drugs or CYP2D6 inhibitors is clinically warranted, initiate VYVANSE with lower doses, monitor patients for the emergence of serotonin syndrome during drug initiation or titration, and inform patients of the increased risk for serotonin syndrome. (etiqueta de Lisdexanfetamina, Advertencias y precauciones)

Alpha 1- Adrenoreceptor Antagonist: alfuzosin Antianginal: ranolazine Antiarrhythmic: dronedarone Anti-gout: colchicine Antipsychotics: lurasidone, pimozide Ergot Derivatives: dihydroergotamine, ergotamine, methylergonovine GI Motility Agent: cisapride Hepatitis C direct acting antiviral: elbasvir/grazoprevir HMG-CoA Reductase Inhibitors: lovastatin, simvastatin… (etiqueta de Lopinavir y ritonavir, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

CONTRAINDICATIONS Use of mefloquine hydrochloride tablets is contraindicated in patients with a known hypersensitivity to mefloquine or related compounds (e.g., quinine and quinidine) or to any of the excipients contained in the formulation. (etiqueta de Mefloquina, Contraindicaciones)

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. (etiqueta de Metadona, Advertencia en recuadro)

If serotonin syndrome occurs, discontinue methamphetamine hydrochloride tablets, USP and the CYP2D6 inhibitor [see Warnings and Precautions 5.8]. (etiqueta de Metanfetamina, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

CYP2D6 Inhibitors Monitor patients closely when the combination use of CYP2D6 inhibitor and metoprolol cannot be avoided. (etiqueta de Metoprolol, Interacciones medicamentosas)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

…metabolized by CYP3A such as simvastatin, lovastatin, and CYP3A substrates with narrow therapeutic ranges, such as cyclosporine, dihydroergotamine, ergotamine, fentanyl, pimozide, quinidine, sirolimus, and tacrolimus, due to an increased risk of adverse events. [See Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.3 )] Patients receiving systemic corticosteroids… (etiqueta de Mifepristona, Contraindicaciones)

Examples diazepam, alprazolam, alcohol Drugs that Prolong QTc Interval Clinical Impact The concomitant use of other drugs which prolong the QTc interval with REMERON/REMERONSolTab, increase the risk of QT prolongation and/or ventricular arrhythmias (e.g., Torsades de Pointes). (etiqueta de Mirtazapina, Interacciones medicamentosas)

Therefore, moxifloxacin should be avoided with Class IA and Class III antiarrhythmics [see Warnings and Precautions ( 5.6 ), Nonclinical Toxicology ( 13.2 ), and Patient Counseling Information ( 17 )]. (etiqueta de Moxifloxacino, Interacciones medicamentosas)

…concentrations are associated with serious and/or life-threatening reactions [see Drug Interactions (7.3) ] : • Alpha 1-adrenoreceptor antagonist: alfuzosin • Antianginal: ranolazine • Antiarrhythmic: amiodarone, dronedarone, flecainide, propafenone, quinidine • Anti-gout: colchicine (in patients with renal and/or hepatic impairment [see Table 2 , Drug Interactions… (etiqueta de Nirmatrelvir y ritonavir, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Avoid coadministration of oxaliplatin injection with medicinal products with a known potential to prolong the QT interval. (etiqueta de Oxaliplatino, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

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. (etiqueta de Paracetamol y codeína, Advertencia en recuadro)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Avoid concomitant use of VOTRIENT with strong inhibitors of P-gp or BCRP. (etiqueta de Pazopanib, Interacciones medicamentosas)

Because pimozide prolongs the QT interval of the electrocardiogram it is contraindicated in patients with congenital long QT syndrome, patients with a history of cardiac arrhythmias, patients taking other drugs which prolong the QT interval of the electrocardiogram or patients with known hypokalemia or hypomagnesemia (see also PRECAUTIONS - DRUG INTERACTIONS ). (etiqueta de Pimozida, Contraindicaciones)

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 )]. (etiqueta de Pitolisant, Advertencias y precauciones)

Although the clinical significance of this interaction is unknown, grapefruit juice should be avoided. (etiqueta de Quinidina, Interacciones medicamentosas)

Class Ia (e.g., quinidine, procainamide) and Class III (e.g., amiodarone, sotalol) anti-arrhythmic drugs have been associated with cases of Torsades de Pointes in patients with bradycardia. (etiqueta de Ponesimod, Interacciones medicamentosas)

CYP3A4 substrates (pimozide, quinidine): can result in QTc interval prolongation and cases of torsades de pointes (TdP) ( 4.3 , 5.2 , 7.2 ) (etiqueta de Posaconazol, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

CONTRAINDICATIONS Quinidine is contraindicated in patients who are known to be allergic to it, or who have a history of immune thrombocytopenia or have developed thrombocytopenic purpura during prior therapy with quinidine or quinine (see WARNINGS ). (etiqueta de Quinidina, Contraindicaciones)

• Potent Inhibitors of P-gp: Avoid another dose of NURTEC ODT within 48 hours when administered with a potent P-gp inhibitor. (etiqueta de Rimegepant, Interacciones medicamentosas)

WARNING: DRUG-DRUG INTERACTIONS LEADING TO POTENTIALLY SERIOUS AND/OR LIFE THREATENING REACTIONS Co-administration of NORVIR with several classes of drugs including sedative hypnotics, antiarrhythmics, or ergot alkaloid preparations may result in potentially serious and/or life-threatening adverse events due to possible effects of NORVIR on the hepatic metabolism… (etiqueta de Ritonavir, Advertencia en recuadro)

Avoid the concomitant use of drugs known to prolong the QTc interval. (etiqueta de Sertralina, Interacciones medicamentosas)

• Avoid concomitant use with strong CYP3A4/P-gp inducers or strong CYP3A4/P-gp inhibitors that decrease or increase sirolimus concentrations ( 7.4 , 12.3 ). (etiqueta de Sirolimus, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Effect of Other Drugs on TALZENNA Effect of P-gp Inhibitors Breast Cancer Avoid coadministration of TALZENNA with the following P-gp inhibitors: itraconazole, amiodarone, carvedilol, clarithromycin, itraconazole, and verapamil. (etiqueta de Talazoparib, Interacciones medicamentosas)

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) ]. (etiqueta de Tetrabenazina, Interacciones medicamentosas)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Avoid concomitant use HYCAMTIN capsules with P-gp inhibitors or BCRP inhibitors. (etiqueta de Topotecán, Interacciones medicamentosas)

The effects of concomitant use or discontinuation of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with tramadol are complex. (etiqueta de Tramadol, Advertencia en recuadro)

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 tramadol are complex. (etiqueta de Tramadol y paracetamol, Advertencia en recuadro)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

Quinidine is also contraindicated in patients who, like those with myasthenia gravis, might be adversely affected by an anticholinergic agent. (etiqueta de Quinidina, Contraindicaciones)

QT Prolongation : Patients with congenital QT syndrome or taking class IA or III antiarrhythmics should avoid using vardenafil hydrochloride tablets. (etiqueta de Vardenafilo, Advertencias y precauciones)

Avoid concomitant use of VEPPANU with strong CYP3A inhibitors or drugs known to prolong the QTc interval. (etiqueta de Vepdegestrant, Advertencias y precauciones)

Proarrhythmic effects Like many other drugs (including all other Class Ia antiarrhythmics), quinidine prolongs the QT c interval, and this can lead to torsades de pointes , a life-threatening ventricular arrhythmia (see OVERDOSAGE ). (etiqueta de Quinidina, Advertencias)

Therefore, the concomitant use of P-gp inhibitors or inducers should be avoided. (etiqueta de Vincristina, Interacciones medicamentosas)

…life‑threatening reactions [see Drug Interactions (7) ]: • Eplerenone • Ergot alkaloids (e.g., ergotamine, dihydroergotamine) • Finerenone • Ivabradine • Lurasidone • Naloxegol • Pimozide • Quinidine • Rifabutin [see Clinical Pharmacology (12.3) ] • Sirolimus [see Clinical Pharmacology (12.3) ] • Tolvaptan • Venetoclax: Coadministration at initiation and during the ramp-up… (etiqueta de Voriconazol, Contraindicaciones)

Therefore, ziprasidone should not be given with: • dofetilide, sotalol, quinidine, other Class Ia and III anti-arrhythmics, mesoridazine, thioridazine, chlorpromazine, droperidol, pimozide, sparfloxacin, gatifloxacin, moxifloxacin, halofantrine, mefloquine, pentamidine, arsenic trioxide, levomethadyl acetate, dolasetron mesylate, probucol or tacrolimus. (etiqueta de Ziprasidona, Contraindicaciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

P-glycoprotein (P-gp) Inhibitors : Co-administration of P-gp inhibitors can increase afatinib exposure. (etiqueta de Afatinib, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

MAO inhibitors, tricyclic antidepressants and drugs that prolong the QTc interval may potentiate effect on the cardiovascular system. (etiqueta de Arformoterol, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

CYP2D6 inhibitors and CYP3A4 Inhibitors : See full prescribing information for ABILIFY MAINTENA dosage modifications when used concomitantly with CYP2D6 inhibitors and/or CYP3A4 inhibitors for greater than 14 days ( 7.1 ) (etiqueta de Aripiprazol, Interacciones medicamentosas)

Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with beta-blockers. (etiqueta de Atenolol, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

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) ] . (etiqueta de Atomoxetina, Interacciones medicamentosas)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Altered pharmacodynamics of other drugs: Quinidine's anticholinergic, vasodilating, and negative inotropic actions may be additive to those of other drugs with these effects, and antagonistic to those of drugs with cholinergic, vasoconstricting, and positive inotropic effects. (etiqueta de Quinidina, Interacciones medicamentosas)

Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with beta blockers. (etiqueta de Betaxolol, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Table 4 Drug Interactions with BIXLENVO Concomitant Drug Class: Drug Name Effect on Concentration ↑ = Increase, ↓ = Decrease Clinical Comment Antiarrhythmics: digoxin dofetilide ↑ digoxin ↑ dofetilide Use digoxin with caution and monitor digoxin therapeutic concentration. (etiqueta de Bictegravir, emtricitabina y tenofovir alafenamida, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

Strong CYP2D6 REXULTI may be administered without dosage adjustment in patients with MDD when administered with strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine). or CYP3A4 inhibitors Administer half of recommended dosage. (etiqueta de Brexpiprazol, Interacciones medicamentosas)

CYP2D6 inhibitors may potentiate systemic beta-blockade. (etiqueta de Brimonidina y timolol, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

The risk of combining buprenorphine with other QT-prolonging agents is not known. (etiqueta de Buprenorfina, Advertencias y precauciones)

The risk of combining buprenorphine with other QT-prolonging agents is not known. (etiqueta de Buprenorfina y naloxona, Advertencias y precauciones)

Drugs Metabolized by CYP2D6: Bupropion inhibits CYP2D6 and can increase concentrations of: antidepressants (e.g., venlafaxine, nortriptyline, imipramine, desipramine, paroxetine, fluoxetine, sertraline), antipsychotics (e.g., haloperidol, risperidone, thioridazine), beta-blockers (e.g., metoprolol), and Type 1C antiarrhythmics (e.g., propafenone, flecainide). (etiqueta de Bupropión, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

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) ]. (etiqueta de Carvedilol, Interacciones medicamentosas)

Altered pharmacodynamics of other drugs: Quinidine's anticholinergic, vasodilating, and negative inotropic actions may be additive to those of other drugs with these effects, and antagonistic to those of drugs with cholinergic, vasoconstricting, and positive inotropic effects. (etiqueta de Quinidina, Interacciones medicamentosas)

By pharmacokinetic mechanisms that are not well understood, quinidine levels are increased by coadministration of amiodarone or cimetidine . (etiqueta de Quinidina, Interacciones medicamentosas)

QT Interval Prolongation and V entricular A rr h ythmia Decreases in serum calcium can also prolong the QT interval, potentially resulting in ventricular arrhythmia. (etiqueta de Cinacalcet, Advertencias y precauciones)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

Avoid use of Citalopram Capsules in patients with congenital long QT syndrome, bradycardia, hypokalemia or hypomagnesemia, recent acute myocardial infarction, or uncompensated heart failure and patients taking other drugs that prolong the QTc interval. (etiqueta de Citalopram, Advertencias y precauciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

If the antiretroviral regimen must be withheld for a prolonged period, consideration should be given to initiating a revised regimen that does not include a CYP3A or P-gp inhibitor. (etiqueta de Darunavir, Interacciones medicamentosas)

Other antiarrhythmics e.g. amiodarone, disopyramide, flecainide, lidocaine (systemic), mexiletine, propafenone, quinidine ↑ antiarrhythmics Clinical monitoring is recommended upon co-administration with antiarrhythmics. digoxin ↑ digoxin When co-administering with digoxin, titrate the digoxin dose and monitor digoxin concentrations. (etiqueta de Darunavir y cobicistat, Interacciones medicamentosas)

QT Prolongation PHYRAGO may increase the risk of prolongation of QTc in patients including those with hypokalemia or hypomagnesemia, patients with congenital long QT syndrome, patients taking antiarrhythmic medicines or other medicinal products that lead to QT prolongation, and cumulative high-dose anthracycline therapy [see Adverse Reactions ( 6.1 )] . (etiqueta de Dasatinib, Advertencias y precauciones)

…ergotamine, everolimus, felodipine, fentanyl, hormonal contraceptive agents, indinavir, fluticasone, lopinavir, lovastatin, lurasidone, maraviroc, midazolam, nisoldipine, pimozide, quetiapine, quinidine, saquinavir, sildenafil, simvastatin, sirolimus, tacrolimus, tolvaptan, tipranavir, triazolam, ticagrelor, and vardenafil) [see Clinical Pharmacology (12.3)] . (etiqueta de Deferasirox, Interacciones medicamentosas)

Carefully monitor cardiac rhythm when administering SUPRANE to susceptible patients (e.g., patients with congenital Long QT Syndrome or patients taking drugs that can prolong the QT interval). (etiqueta de Desflurano, Advertencias y precauciones)

Concomitant use of strong CYP2D6 inhibitors: Maximum recommended dose of AUSTEDO XR or AUSTEDO is 36 mg per day ( 2.3 , 7.1 ) (etiqueta de Deutetrabenazina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

…development of prolonged QT syndrome, such as: 1) clinically significant bradycardia (less than 50 bpm), 2) any clinically significant cardiac disease, 3) treatment with Class I and Class III antiarrhythmics, 4) treatment with monoamine oxidase inhibitors (MAOI's), 5) concomitant treatment with other drug products known to prolong the QT interval (see PRECAUTIONS,… (etiqueta de Droperidol, Advertencias)

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. (etiqueta de Dutasterida y tamsulosina, Advertencias y precauciones)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

QT Prolonging Drugs There is limited information available on the potential for a pharmacodynamic interaction between efavirenz and drugs that prolong the QTc interval. (etiqueta de Efavirenz, Interacciones medicamentosas)

QT Prolonging Drugs There is limited information available on the potential for a pharmacodynamic interaction between EFV and drugs that prolong the QTc interval. (etiqueta de Efavirenz, lamivudina y tenofovir, Interacciones medicamentosas)

Antiarrhythmics: e.g., amiodarone bepridil digoxin Indicates that a drug-drug interaction trial was conducted. disopyramide flecainide systemic lidocaine mexiletine propafenone quinidine ↑ antiarrhythmics ↑ digoxin Caution is warranted and therapeutic concentration monitoring, if available, is recommended for antiarrhythmics when coadministered with GENVOYA. (etiqueta de Elvitegravir, cobicistat, emtricitabina y tenofovir, Interacciones medicamentosas)

Coadministration of DESCOVY with other drugs that inhibit P-gp and BCRP may increase the absorption and plasma concentration of TAF. (etiqueta de Emtricitabina y tenofovir, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

QT Prolongation: Monitor for prolonged QT intervals in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, and electrolyte abnormalities. (etiqueta de Eribulina, Advertencias y precauciones)

Erythromycin should be avoided in patients with known prolongation of the QT interval, patients with ongoing proarrhythmic conditions such as uncorrected hypokalemia or hypomagnesemia, clinically significant bradycardia, and in patients receiving Class IA (quinidine, procainamide) or Class III (dofetilide, amiodarone, sotalol) antiarrhythmic agents. (etiqueta de Eritromicina, Advertencias)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Other agents Antiarrhythmics : digoxin ↔ etravirine ↑ digoxin For patients who are initiating a combination of Etravirine and digoxin, the lowest dose of digoxin should initially be prescribed. (etiqueta de Etravirina, Interacciones medicamentosas)

CYP3A4 Substrates with narrow therapeutic index (e.g., alfentanil, quinidine, cyclosporine) : Glycerol phenylbutyrate may decrease exposure; monitor for decreased efficacy of the narrow therapeutic index drug ( 7.3 ) (etiqueta de Fenilbutirato de glicerol, Interacciones medicamentosas)

…decreased PT/INR responses have been reported when phenytoin is coadministered with warfarin Other Corticosteroids, doxycycline, estrogens, furosemide, oral contraceptives, paroxetine, quinidine, rifampin, sertraline, theophylline, and vitamin D Drugs whose level is decreased by phenytoin Anticoagulants Apixaban, dabigatran, edoxaban, rivaroxaban Antiepileptic drugs… (etiqueta de Fenitoína, Interacciones medicamentosas)

…as: 1) clinically significant bradycardia (less than 50 bpm), 2) any clinically significant cardiac disease, including baseline prolonged QT interval, 3) treatment with Class 1 and Class III antiarrhythmics, 4) treatment with monoamine oxidase inhibitors (MAOI's), 5) concomitant treatment with other drug products known to prolong the QT interval and 6) electrolyte… (etiqueta de Fentanilo, Advertencias y precauciones)

Concentrations of fidaxomicin and OP-1118 may also be decreased at the site of action (i.e., gastrointestinal tract) via P-gp inhibition; however, concomitant P-gp inhibitor use had no attributable effect on safety or treatment outcome of fidaxomicin-treated adult patients in controlled clinical trials. (etiqueta de Fidaxomicina, Interacciones medicamentosas)

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 )] . (etiqueta de Fluoxetina, Interacciones medicamentosas)

Caution is indicated in patients known to have reduced levels of CYP2D6 activity and those receiving concomitant drugs known to inhibit this cytochrome P450 isoenzyme (e.g., quinidine). (etiqueta de Fluvoxamina, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

…Antidepressants, QTc Prolonging Drugs Formoterol, as with other beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval because the effect of adrenergic agonists on the cardiovascular system may be potentiated by these agents. (etiqueta de Formoterol, Interacciones medicamentosas)

Other Corticosteroids, doxycycline, estrogens, furosemide, oral contraceptives, paroxetine, quinidine, rifampin, sertraline, theophylline, and vitamin D Drugs whose level is decreased by phenytoin Anticoagulants Apixaban, dabigatran, edoxaban, rivaroxaban Antiepileptic drugs The effect of phenytoin on phenobarbital, valproic acid and sodium valproate serum levels… (etiqueta de Fosfenitoína, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (etiqueta de Goserelina, Advertencias y precauciones)

Serum levels of haloperidol are increased when quinidine is coadministered. (etiqueta de Quinidina, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

This observation should be considered in making clinical decisions regarding patient monitoring when prescribing HYSINGLA ER in patients with congestive heart failure, bradyarrhythmias, electrolyte abnormalities, or who are taking medications that are known to prolong the QTc interval. (etiqueta de Hidrocodona, Advertencias y precauciones)

These effects could be more pronounced with concomitant use of hydrocodone bitartrate and acetaminophen tablets and both CYP3A4 and CYP2D6 inhibitors, particularly when an inhibitor is added after a stable dose of hydrocodone bitartrate and acetaminophen tablets is achieved [see WARNINGS ]. (etiqueta de Hidrocodona y paracetamol, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Monitor QT interval when administering FORANE to susceptible patients (e.g., patients with congenital Long QT Syndrome or patients taking drugs that can prolong the QT interval). (etiqueta de Isoflurano, Advertencias y precauciones)

Antiarrhythmics: amiodarone Effect on amiodarone, ledipasvir, and sofosbuvir concentrations unknown Coadministration of amiodarone with ledipasvir and sofosbuvir may result in serious symptomatic bradycardia. (etiqueta de Ledipasvir y sofosbuvir, Interacciones medicamentosas)

Clinical Comment Antiarrhythmics: digoxin ↑ digoxin Use with caution and monitor digoxin therapeutic concentration. (etiqueta de Lenacapavir, Interacciones medicamentosas)

Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (etiqueta de Leuprorelina, Advertencias y precauciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Risk of QT Prolongation : Lofexidine tablets prolong the QT interval. (etiqueta de Lofexidina, Advertencias y precauciones)

…combination with others drugs or herbal products that are known to prolong the QT interval, including Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmics, antipsychotics (e.g., chlorpromazine, haloperidol, thioridazine, ziprasidone), antibiotics (e.g., moxifloxacin), or any other drug known to prolong the QT interval… (etiqueta de Loperamida, Advertencias)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Examples quinidine, bupropion, fluoxetine, and paroxetine Monoamine Oxidase Inhibitors Clinical Impact Increased risk of hypertension [see Warnings and Precautions ( 5.5 )] . (etiqueta de Metoclopramida, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

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. (etiqueta de Metronidazol, Interacciones medicamentosas)

P-Glycoprotein (P-gp) Inhibitors Clinical Impact: The concomitant use of P-gp inhibitors can increase the exposure to morphine by two-fold and can increase the risk of hypotension, respiratory depression, profound sedation, coma, and death. (etiqueta de Morfina, Interacciones medicamentosas)

P-glycoprotein (P-gp) Inhibitors (e.g., amiodarone, captopril, cyclosporine, quercetin, quinidine, verapamil) Clinical Impact Increase in plasma naldemedine concentrations [see Clinical Pharmacology (12.3) ] Intervention Monitor for potential naldemedine-related adverse reactions [see Adverse Reactions (6.1) ] . (etiqueta de Naldemedina, Interacciones medicamentosas)

•Weak CYP3A4 inhibitors (e.g., quinidine, cimetidine) •Clinically significant increases in naloxegol concentrations are not expected. (etiqueta de Naloxegol, Interacciones medicamentosas)

Drugs Metabolized by CYP2D6: Bupropion inhibits CYP2D6 and can increase concentrations of antidepressants, (e.g., selective serotonin reuptake inhibitors and many tricyclics), antipsychotics (e.g., haloperidol, risperidone and thioridazine), beta-blockers (e.g., metoprolol) and Type 1C antiarrhythmics (e.g., propafenone and flecainide). (etiqueta de Naltrexona y bupropión, Interacciones medicamentosas)

Use with CYP2D6 Inhibitors Nebivolol exposure increases with inhibition of CYP2D6 [see Drug Interactions ( 7 ) ] . (etiqueta de Nebivolol, Advertencias y precauciones)

…nefazodone and its major metabolites are not altered in these “poor metabolizers.” Plasma concentrations of one minor metabolite (mCPP) are increased in this population; the adjustment of nefazodone dosage is not required when administered to “poor metabolizers.” Nefazodone and its metabolites have been shown in vitro to be extremely weak inhibitors of CYP2D6. (etiqueta de Nefazodona, Interacciones medicamentosas)

Antiarrhythmics: Amiodarone, disopyramide, lidocaine Plasma concentrations may be decreased. (etiqueta de Nevirapina, Interacciones medicamentosas)

Very rarely, and again by mechanisms not understood, quinidine levels are decreased by coadministration of nifedipine . (etiqueta de Quinidina, Interacciones medicamentosas)

Quinidine at 648 mg bid decreased the bioavailability (AUC) of nisoldipine by 26%, but not the peak concentration. (etiqueta de Nisoldipino, Interacciones medicamentosas)

Drugs Metabolized by CYP 450 Enzymes: concomitant use with other drugs mainly metabolized by CYP3A4 that have a narrow therapeutic index (e.g., quinidine) should be used with caution and increased monitoring may be required (‎ 7 ). (etiqueta de Octreotida, Interacciones medicamentosas)

Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (etiqueta de Ofloxacino, Precauciones)

Examples: Paroxetine, fluoxetine, quinidine, bupropion Moderate to Strong Inhibitors of CYP3A4 Clinical Impact: The concomitant administration of moderate to strong CYP3A4 inhibitors can increase the plasma concentration of oliceridine, resulting in increased or prolonged opioid adverse reactions. (etiqueta de Oliceridina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

The dose of the sensitive CYP3A substrate with a narrow therapeutic index (e.g., alfentanil, cyclosporine, dihydroergotamine, ergotamine, everolimus, fentanyl, pimozide, quinidine, sirolimus, and tacrolimus) may need to be reduced, as IBRANCE may increase its exposure [see Clinical Pharmacology (12.3) ] . (etiqueta de Palbociclib, Interacciones medicamentosas)

…combination with other drugs that are known to prolong QTc including Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications, antipsychotic medications (e.g., chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval. (etiqueta de Paliperidona, Advertencias y precauciones)

Drugs that Prolong QT: Use with caution in patients who are at significant risk of developing QTc prolongation. (etiqueta de Pasireotida, Interacciones medicamentosas)

Altered pharmacodynamics of other drugs: Quinidine's anticholinergic, vasodilating, and negative inotropic actions may be additive to those of other drugs with these effects, and antagonistic to those of drugs with cholinergic, vasoconstricting, and positive inotropic effects. (etiqueta de Quinidina, Interacciones medicamentosas)

The use of NUPLAZID should be avoided in patients with known QT prolongation or in combination with other drugs known to prolong QT interval including Class 1A antiarrhythmics (e.g., quinidine, procainamide) or Class 3 antiarrhythmics (e.g., amiodarone, sotalol), certain antipsychotic medications (e.g., ziprasidone, chlorpromazine, thioridazine), and certain… (etiqueta de Pimavanserina, Advertencias y precauciones)

Altered pharmacodynamics of other drugs: Quinidine's anticholinergic, vasodilating, and negative inotropic actions may be additive to those of other drugs with these effects, and antagonistic to those of drugs with cholinergic, vasoconstricting, and positive inotropic effects. (etiqueta de Quinidina, Interacciones medicamentosas)

QT Interval Prolonging Drugs The pharmacodynamic interaction potential to prolong the QT interval of the electrocardiogram between Primaquine phosphate Tablets and other drugs that effect cardiac conduction is unknown. (etiqueta de Primaquina, Interacciones medicamentosas)

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. (etiqueta de Propranolol, Interacciones medicamentosas)

…Class 1A antiarrythmics (e.g., quinidine, procainamide) or Class III antiarrythmics (e.g., amiodarone, sotalol), antipsychotic medications (e.g., ziprasidone, chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval (e.g., pentamidine, levomethadyl acetate, methadone). (etiqueta de Quetiapina, Advertencias y precauciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

…non-hormonal methods of birth control during rifampin therapy Estrogens Decrease exposure Progestins Anticonvulsants Phenytoin Administered with rifampin 450 mg daily Decrease exposure Antiarrhythmics Disopyramide Decrease exposure Mexiletine Decrease exposure Quinidine Decrease exposure Propafenone Decrease AUC by 50%-67% Tocainide Decrease exposure Antiestrogens… (etiqueta de Rifampicina, Interacciones medicamentosas)

Table 4: Drug Interactions with PRIFTIN: Dosage Adjustment May be Necessary Drug Class Examples of Drugs Within Class Antiarrhythmics Disopyramide, mexiletine, quinidine, tocainide Antibiotics Chloramphenicol, clarithromycin, dapsone, doxycycline; Fluoroquinolones (such as ciprofloxacin) Oral Anticoagulants Warfarin Anticonvulsants Phenytoin Antimalarials Quinine… (etiqueta de Rifapentina, Interacciones medicamentosas)

• Concomitant P-glycoprotein (P-gp) inhibitors (e.g., cyclosporine): Caution should be exercised when concomitant use of XIFAXAN and a P-glycoprotein inhibitor is needed. (etiqueta de Rifaximina, Advertencias y precauciones)

In healthy subjects, 75 mg once daily and 300 mg once daily (3 times and 12 times the dose in EDURANT) have been shown to prolong the QTc interval of the electrocardiogram. (etiqueta de Rilpivirina, Advertencias y precauciones)

Fluoxetine and Paroxetine Fluoxetine (20 mg once daily) and paroxetine (20 mg once daily), CYP 2D6 inhibitors, have been shown to increase the plasma concentration of risperidone 2.5–2.8 fold and 3–9 fold respectively. (etiqueta de Risperidona, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

…anesthetics or agents structurally related to amide- type local anesthetics, since the toxic effects of these drugs are additive. [See Drug Interactions 7.0 ] Patients treated with class III antiarrhythmic drugs (e.g., amiodarone) should be under close surveillance and ECG monitoring considered, since cardiac effects may be additive. [See Drug Interactions 7.0… (etiqueta de Ropivacaína, Advertencias y precauciones)

Caution should be exercised when administering sevoflurane to susceptible patients (e.g., patients with congenital Long QT Syndrome or patients taking drugs that can prolong the QT interval). (etiqueta de Sevoflurano, Advertencias)

Antiarrhythmics: amiodarone Effect on amiodarone, sofosbuvir, velpatasvir, and voxilaprevir concentrations unknown Coadministration of amiodarone with VOSEVI may result in serious symptomatic bradycardia. (etiqueta de Sofosbuvir y velpatasvir, Interacciones medicamentosas)

Monitor electrolytes and electrocardiograms in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, including Class Ia and III antiarrhythmics. (etiqueta de Sorafenib, Advertencias y precauciones)

Drugs that Prolong the QT interval QT prolongation has been reported with metronidazole, a component of bismuth subcitrate potassium, metronidazole and tetracycline hydrochloride, particularly when administered with drugs with the potential for prolonging the QT interval. (etiqueta de Subcitrato de bismuto, metronidazol y tetraciclina, Advertencias y precauciones)

Drug Interactions Some studies have shown that simultaneous sucralfate administration in healthy volunteers reduced the extent of absorption (bioavailability) of single doses of the following: cimetidine, digoxin, fluoroquinolone antibiotics, ketoconazole, l-thyroxine, phenytoin, quinidine, ranitidine, tetracycline, and theophylline. (etiqueta de Sucralfato, Interacciones medicamentosas)

Monitor patients who are at higher risk of developing QT interval prolongation, including patients with a history of QT interval prolongation, patients who are taking antiarrhythmics, or patients with relevant pre-existing cardiac disease, bradycardia, or electrolyte disturbances. (etiqueta de Sunitinib, Advertencias y precauciones)

In addition, in vitro addition of quinidine to the serum of pregnant women reduces the activity of pseudo-cholinesterase, an enzyme that is essential to the metabolism of succinylcholine. (etiqueta de Quinidina, Interacciones medicamentosas)

…electrocardiograms and monitoring electrolytes (magnesium, potassium, calcium) periodically during treatment in patients with congestive heart failure, bradyarrhythmias, those taking certain antiarrhythmic medications or other products that lead to QT prolongation, and those with electrolyte disturbances (e.g., hypokalemia, hypocalcemia, or hypomagnesemia). (etiqueta de Tacrolimus, Advertencias y precauciones)

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. (etiqueta de Tamsulosina, Advertencias y precauciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Potentiated systemic beta-blockade (e.g., decreased heart rate) has been reported during combined treatment with quinidine and timolol. (etiqueta de Timolol, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Agents generally accepted to prolong QT interval include Class 1A (e.g., quinidine, procainamide, disopyramide) and Class III (e.g., amiodarone, sotalol, ibutilide, dofetilide) antiarrhythmics; certain antipsychotics (e.g., thioridazine, haloperidol); certain antidepressants (e.g., venlafaxine, amitriptyline); certain antibiotics (e.g., erythromycin, clarithromycin,… (etiqueta de Toremifeno, Interacciones medicamentosas)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

…prolongation or in combination with other drugs that are inhibitors of CYP3A4 (e.g., itraconazole, clarithromycin, voriconazole), or known to prolong QT interval including Class 1A antiarrhythmics (e.g., quinidine, procainamide) or Class 3 antiarrhythmics (e.g., amiodarone, sotalol), certain antipsychotic medications (e.g., ziprasidone, chlorpromazine, thioridazine),… (etiqueta de Trazodona, Advertencias y precauciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (etiqueta de Triptorelina, Advertencias y precauciones)

Use of BCRP and/or P-gp only inhibitors (e.g., quinidine, carvedilol, eltrombopag, curcumin) may increase the exposure of ubrogepant [ s ee Clinical Pharmacology ( 12.3 ) ] . (etiqueta de Ubrogepant, Interacciones medicamentosas)

For patients who are CYP2D6 poor metabolizers or are taking a strong CYP2D6 inhibitor, dose reduction may be necessary. (etiqueta de Valbenazina, Advertencias y precauciones)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

Quinidine potentiates the actions of depolarizing (succinylcholine, decamethonium) and non-depolarizing ( d -tubocurarine, pancuronium) neuromuscular blocking agents . (etiqueta de Quinidina, Interacciones medicamentosas)

Therefore, the potential exists for a drug interaction between drugs that inhibit CYP2D6-mediated metabolism of venlafaxine, reducing the metabolism of venlafaxine to ODV, resulting in increased plasma concentrations of venlafaxine and decreased concentrations of the active metabolite. (etiqueta de Venlafaxina, Interacciones medicamentosas)

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) ] . (etiqueta de Viloxazina, Interacciones medicamentosas)

Examples bupropion, fluoxetine, paroxetine, quinidine Strong CYP Inducers Clinical Impact Concomitant use of TRINTELLIX with a strong CYP inducer decreases plasma concentrations of vortioxetine. (etiqueta de Vortioxetina, Interacciones medicamentosas)

By a mechanism that is not understood, quinidine potentiates the anticoagulatory action of warfarin , and the anticoagulant dosage may need to be reduced. (etiqueta de Quinidina, Interacciones medicamentosas)

Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (etiqueta de Quinidina, Interacciones medicamentosas)

The effects (if any) of coadministration of other β-blockers on quinidine pharmacokinetics have not been adequately studied. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Pediatric use In antimalarial trials, quinidine was as safe and effective in pediatric patients as in adults. (etiqueta de Quinidina, Precauciones)

Pediatric use In antimalarial trials, quinidine was as safe and effective in pediatric patients as in adults. (etiqueta de Quinidina, Precauciones)

The effects (if any) of coadministration of other β-blockers on quinidine pharmacokinetics have not been adequately studied. (etiqueta de Quinidina, Interacciones medicamentosas)

Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (etiqueta de Quinidina, Interacciones medicamentosas)

Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (etiqueta de Quinidina, Interacciones medicamentosas)

Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (etiqueta de Quinidina, Interacciones medicamentosas)

CYP2D6 substrates Clinical Impact: In vitro studies indicate that celecoxib, although not a substrate, is an inhibitor of CYP2D6. (etiqueta de Celecoxib, Interacciones medicamentosas)

The selective serotonin reuptake inhibitors sertraline (weak CYP3A4 inducer) and fluoxetine (CYP2D6 inhibitor), and the anti-epileptic drug felbamate (CYP2C19 inhibitor and CYP3A4 inducer) do not affect the pharmacokinetics of clonazepam. (etiqueta de Clonazepam, Interacciones medicamentosas)

Pediatric use In antimalarial trials, quinidine was as safe and effective in pediatric patients as in adults. (etiqueta de Quinidina, Precauciones)

Dapagliflozin or dapagliflozin 3-O-glucuronide did not meaningfully inhibit P-gp, OCT2, OAT1, or OAT3 active transporters. (etiqueta de Dapagliflozina, Interacciones medicamentosas)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)

Examples: α-adrenergic antagonists, β-adrenergic receptor antagonists, reserpine, quinidine, mephentermine Other Drug Interactions G u anethidine C linical Impact: Ephedrine may inhibit the neuron blockage produced by guanethidine, resulting in loss of antihypertensive effectiveness. (etiqueta de Efedrina, Interacciones medicamentosas)

Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (etiqueta de Quinidina, Interacciones medicamentosas)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)

Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (etiqueta de Quinidina, Interacciones medicamentosas)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)

In the case of prodrugs whose actions are actually mediated by P450 IID6 -produced metabolites (for example, codeine and hydrocodone , whose analgesic and antitussive effects appear to be mediated by morphine and hydromorphone, respectively), it may not be possible to achieve the desired clinical benefits in poor metabolizers. (etiqueta de Quinidina, Interacciones medicamentosas)

In the case of prodrugs whose actions are actually mediated by P450 IID6 -produced metabolites (for example, codeine and hydrocodone , whose analgesic and antitussive effects appear to be mediated by morphine and hydromorphone, respectively), it may not be possible to achieve the desired clinical benefits in poor metabolizers. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

The effects (if any) of coadministration of other β-blockers on quinidine pharmacokinetics have not been adequately studied. (etiqueta de Quinidina, Interacciones medicamentosas)

Cardiac Rhythm and Conduction Abnormalities In vitro testing showed that lamotrigine exhibits Class IB antiarrhythmic activity at therapeutically relevant concentrations [see Clinical Pharmacology ( 12.2 )] . (etiqueta de Lamotrigina, Advertencias y precauciones)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)

P-glycoprotein Substrates Lomitapide is an inhibitor of P-glycoprotein (P-gp). (etiqueta de Lomitapida, Interacciones medicamentosas)

Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (etiqueta de Memantina y donepezilo, Interacciones medicamentosas)

…for Drug Interaction: It appears possible, although there is no supporting experimental evidence, that the high renal clearance of desglymidodrine (a base) is due to active tubular secretion by the base-secreting system also responsible for the secretion of such drugs as metformin, cimetidine, ranitidine, procainamide, triamterene, flecainide, and quinidine. (etiqueta de Midodrina, Precauciones)

…untoward clinical manifestations have been observed in limited experience with patients in whom milrinone was used concurrently with the following drugs: digitalis glycosides; lidocaine, quinidine; hydralazine, prazosin; isosorbide dinitrate, nitroglycerin; chlorthalidone, furosemide, hydrochlorothiazide, spironolactone; captopril; heparin, warfarin, diazepam, insulin;… (etiqueta de Milrinona, Interacciones medicamentosas)

The effects (if any) of coadministration of other β-blockers on quinidine pharmacokinetics have not been adequately studied. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (etiqueta de Quinidina, Interacciones medicamentosas)

Pentoxifylline extended-release tablets have been used concurrently with antihypertensive drugs, beta blockers, digitalis, diuretics, and antiarrhythmics, without observed problems. (etiqueta de Pentoxifilina, Interacciones medicamentosas)

Drug Interactions Metabolism of a number of medications, including antipsychotics, antidepressants, β-blockers, and antiarrhythmics, occurs through the cytochrome P450 2D6 isoenzyme (debrisoquine hydroxylase). (etiqueta de Perfenazina, Interacciones medicamentosas)

The effects (if any) of coadministration of other β-blockers on quinidine pharmacokinetics have not been adequately studied. (etiqueta de Quinidina, Interacciones medicamentosas)

Pediatric use In antimalarial trials, quinidine was as safe and effective in pediatric patients as in adults. (etiqueta de Quinidina, Precauciones)

…chlorpropamide, phenformin, tolazamide, and tolbutamide; (3) tranquilizers and sedatives–chlordiazepoxide, diazepam, and phenobarbital; (4) antigout–allopurinol, colchicine, and probenecid; (5) antiarrhythmics–procainamide, propranolol (see WARNINGS however), and quinidine; and (6) analgesics, antipyretics and anti-inflammatories–propoxyphene, aspirin, indomethacin, and phenylbutazone. (etiqueta de Prazosina, Interacciones medicamentosas)

Strong P-glycoprotein (P-gp) Inhibitors In vitro studies indicated that silodosin is a P‑gp substrate. (etiqueta de Silodosina, Interacciones medicamentosas)

Quinidine's pharmacokinetics are also unaffected by cigarette smoking. (etiqueta de Quinidina, Interacciones medicamentosas)

Pediatric use In antimalarial trials, quinidine was as safe and effective in pediatric patients as in adults. (etiqueta de Quinidina, Precauciones)

Strong Inhibitors of CYP2D6 The impact on the efficacy of tamoxifen with co-administration of strong CYP2D6 inhibitors (e.g., paroxetine) is not well established. (etiqueta de Tamoxifeno, Interacciones medicamentosas)

Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated. (etiqueta de Quinidina, Interacciones medicamentosas)

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. (etiqueta de Terbinafina, Interacciones medicamentosas)

Moderate or Weak CYP1A2 Inhibitors Concomitant use of Zanaflex with moderate or weak CYP1A2 inhibitors (e.g., zileuton, antiarrhythmics [amiodarone, mexiletine, propafenone, and verapamil], cimetidine, famotidine, oral contraceptives, acyclovir, and ticlopidine) should be avoided. (etiqueta de Tizanidina, Interacciones medicamentosas)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)

Cytochrome P450 IID6 is an enzyme critical to the metabolism of many drugs, notably including mexiletine , some phenothiazines , and most polycyclic antidepressants . (etiqueta de Quinidina, Interacciones medicamentosas)