8,9 Procainamide Closely monitor for clinical and ECG signs of procainamide toxicity and/or procainamide plasma concentration if available Trimethoprim increases the plasma concentrations of procainamide and its active N-acetyl metabolite (NAPA) when trimethoprim and procainamide are coadministered. The increased procainamide and NAPA plasma concentrations that resulted from the pharmacokinetic interaction with trimethoprim are associated with further prolongation of the QTc interval.
Source: FDA drug label - sulfamethoxazole and trimethoprim
Antiarrhythmics quinidine, procainamide, flecainide Reserve concomitant use for patients who are unresponsive to a single agent.
Source: FDA drug label - amiodarone hydrochloride
(7.1) I nhalational anesthetics, antibiotics, local anesthetics, magnesium salts, procainamide, lithium, quinidine: May potentiate or prolong neuromuscular blockade action of cisatracurium besylate injection. Antibiotics† Local anesthetics Magnesium salts Procainamide Lithium Quinidine May prolong the neuromuscular blockade action of cisatracurium besylate injection Phenytoin, Carbamazepine May increase resistance to the neuromuscular blockade action of cisatracurium besylate injection resulting in shorter durations of neuromuscular blockade and infusion rate requirements may be higher.
Source: FDA drug label - cisatracurium besylate
Clinically Significant Drug Interactions with Clarithromycin Tablets Drugs That Are Affected By Clarithromycin Tablets Drug(s) with Pharmacokinetics Affected by Clarithromycin Tablets Recommendation Comments Antiarrhythmics: Disopyramide Quinidine Dofetilide Amiodarone Sotalol Procainamide Not Recommended Disopyramide, Quinidine: There have been postmarketing reports of torsades de pointes occurring with concurrent use of clarithromycin and quinidine or disopyramide.
Source: FDA drug label - clarithromycin
Drugs that cause QT prolongation include: specific antipsychotics (e.g., ziprasidone, iloperidone, chlorpromazine, thioridazine, mesoridazine, droperidol, and pimozide), specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin), Class 1A antiarrhythmics (e.g., quinidine, procainamide) or Class III antiarrhythmics (e.g., amiodarone, sotalol), and others (e.g., pentamidine, levomethadyl acetate, methadone, halofantrine, mefloquine, dolasetron mesylate, probucol or tacrolimus) [see Warnings and Precautions (5.9) ] .
Source: FDA drug label - clozapine
Other antiarrhythmic drugs (e.g., quinidine, procainamide, lidocaine, propranolol) have occasionally been used concurrently with disopyramide phosphate.
Source: FDA drug label - disopyramide phosphate
These include: specific antipsychotics (e.g., ziprasidone, iloperidone, chlorpromazine, mesoridazine, droperidol); specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin); Class 1A antiarrhythmic medications (e.g., quinidine, procainamide); Class III antiarrhythmics (e.g., amiodarone, sotalol); and others (e.g., pentamidine, levomethadyl acetate, methadone, halofantrine, mefloquine, dolasetron mesylate, probucol or tacrolimus).
Source: FDA drug label - fluoxetine
These include: specific antipsychotics (e.g., ziprasidone, iloperidone, chlorpromazine, mesoridazine, droperidol); specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin); Class 1A antiarrhythmic medications (e.g., quinidine, procainamide); Class III antiarrhythmics (e.g., amiodarone, sotalol); and others (e.g., pentamidine, levomethadyl acetate, methadone, halofantrine, mefloquine, dolasetron mesylate, probucol or tacrolimus).
Source: FDA drug label - fluoxetine hydrochloride
Examples include (but are not limited to): Class 1A antiarrhythmics (e.g., procainamide, quinidine, disopyramide); Class 3 antiarrhythmics (e.g., amiodarone, sotalol); and other drugs such as citalopram, erythromycin, levofloxacin, methadone, and ziprasidone.
Source: FDA drug label - haloperidol decanoate
Cationic drugs —Cationic drugs (e.g., amiloride, digoxin, morphine, procainamide, quinidine, quinine, ranitidine, triamterene, trimethoprim, or vancomycin) that are eliminated by renal tubular secretion theoretically have the potential for interaction with metformin by competing for common renal tubular transport systems.
Source: FDA drug label - metformin hcl
Potential for Drug Interaction It appears possible, although there is no supporting experimental evidence, that the high renal clearance of desyglymidodrine (a base) is due to active tubular secretion by the base-secreting system also responsible for the secretionof such drugs as metformin, cimetidine, ranitidine, procainamide, triamterene, flecainide, and quinidine.
Source: FDA drug label - midodrine hydrochloride
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.
Source: FDA drug label - ponesimod
Drug Interactions Prazosin hydrochloride has been administered without any adverse drug interaction in limited clinical experience to date with the following: (1) cardiac glycosides– digitalis and digoxin; (2) hypoglycemics–insulin, 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.
Source: FDA drug label - prazosin hydrochloride
( 7.7 ) Enhanced rocuronium bromide activity possible : Inhalation anesthetics ( 7.3 ), certain antibiotics ( 7.1 ), quinidine ( 7.10 ), magnesium ( 7.6 ), lithium ( 7.4 ), local anesthetics ( 7.5 ), procainamide. 7.8 Procainamide Procainamide has been shown to increase the duration of neuromuscular block and decrease infusion requirements of neuromuscular blocking agents [see Warnings and Precautions ( 5.10 )].
Source: FDA drug label - rocuronium bromide
E xamples: Specific antipsychotics (e.g., ziprasidone, iloperidone, chlorpromazine, mesoridazine, droperidol); specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin); Class 1A antiarrhythmic medications (e.g., quinidine, procainamide); Class III antiarrhythmics (e.g., amiodarone, sotalol); and others (e.g., pentamidine, levomethadyl acetate, methadone, halofantrine, mefloquine, dolasetron mesylate, probucol or tacrolimus).
Source: FDA drug label - sertraline
Examples: Specific antipsychotics (e.g., ziprasidone, iloperidone, chlorpromazine, mesoridazine, droperidol); specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin); Class 1A antiarrhythmic medications (e.g., quinidine, procainamide); Class III antiarrhythmics (e.g., amiodarone, sotalol); and others (e.g., pentamidine, levomethadyl acetate, methadone, halofantrine, mefloquine, dolasetron mesylate, probucol or tacrolimus).
Source: FDA drug label - sertraline hcl
Class Ia antiarrhythmic drugs, such as disopyramide, quinidine, and procainamide, and other Class III drugs (for example, amiodarone) are not recommended as concomitant therapy with sotalol hydrochloride, because of their potential to prolong refractoriness [see Warnings and Precautions ( 5.2 )].
Source: FDA drug label - sotalol hydrochloride
7 DRUG INTERACTIONS Drugs that May Enhance the Neuromuscular Blocking Action of Succinylcholine : promazine, oxytocin, aprotinin, certain non-penicillin antibiotics, quinidine, β-adrenergic blockers, procainamide, lidocaine, trimethaphan, lithium carbonate, magnesium salts, quinine, chloroquine, isoflurane, desflurane, metoclopramide, terbutaline, and drugs that reduce plasma cholinesterase activity. ( 7.1 ) 7.1 Drugs that May Affect the Neuromuscular Blocking Action of Succinylcholine Chloride Drugs that may enhance the neuromuscular blocking action of succinylcholine include: promazine, oxytocin, aprotinin, certain non-penicillin antibiotics, quinidine, β-adrenergic blockers, procainamide, lidocaine, trimethaphan, lithium carbonate, magnesium salts, quinine, chloroquine, isoflurane, desflurane, metoclopramide, and terbutaline.
Source: FDA drug label - succinylcholine chloride
Examples: Class 1A antiarrhythmics: quinidine, procainamide, disopyramide; Class 3 antiarrhythmics: amiodarone, sotalol; Antipsychotics: ziprasidone, chlorpromazine, thioridazine; Antibiotics: gatifloxacin
Source: FDA drug label - trazodone hydrochloride
7.2 Drugs Eliminated by Active Tubular Secretion Although demonstrated in a drug-drug interaction study not to affect the pharmacokinetics of digoxin, trospium chloride tablets has the potential for pharmacokinetic interactions with other drugs that are eliminated by active tubular secretion (e.g., procainamide, pancuronium, morphine, vancomycin, and tenofovir).
Source: FDA drug label - trospium chloride
Dofetilide Procainamide Sotalol Quinidine Colchicine Clinical Effect Clarithromycin is an inhibitor of CYP3A and the efflux transporter, P-glycoprotein (P-gp).
Source: FDA drug label - vonoprazan fumarate and amoxicillin