Wechselwirkungen von Mexiletin

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Fluvoxamine, a known strong inhibitor of CYP1A2, has been shown to increase mean alosetron plasma concentrations (AUC) approximately 6-fold and prolong the half-life by approximately 3-fold [see Drug Interactions ( 7.1 )] . (Fachinformation zu Alosetron, Gegenanzeigen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

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). (Fachinformation zu Asenapin, Warnhinweise und Vorsichtsmaßnahmen)

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… (Fachinformation zu Atazanavir, Gegenanzeigen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

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 ) (Fachinformation zu Clarithromycin, Warnhinweise und Vorsichtsmaßnahmen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Strong CYP1A2 inhibitors : Avoid concomitant use. (Fachinformation zu Duloxetin, Arzneimittelwechselwirkungen)

Reduce the erlotinib dosage when co-administering with a strong CYP3A4 inhibitor or a combined CYP3A4 and CYP1A2 inhibitor if co-administration is unavoidable [see Dosage and Administration (2.4) ]. (Fachinformation zu Erlotinib, Arzneimittelwechselwirkungen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

…asymptomatic non-life-threatening ventricular arrhythmias who had a myocardial infarction more than six days but less than two years previously, an excessive mortality or non-fatal cardiac arrest rate (7.7%) was seen in patients treated with encainide or flecainide compared with that seen in patients assigned to carefully matched placebo-treated groups (3.0%). (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

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… (Fachinformation zu Fosamprenavir, Gegenanzeigen)

Avoid co-administration of CONTEPO with drugs known to prolong the QT interval, such as class IA or class III antiarrhythmic medications, tricyclic antidepressants, macrolides, and antipsychotics [see Warnings and Precautions ( 5.2 )] . (Fachinformation zu Fosfomycin, Arzneimittelwechselwirkungen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Antiarrhythmics Disopyramide Dofetilide Dronedarone Quinidine Contraindicated during and 2 weeks after TOLSURA treatment. (Fachinformation zu Itraconazol, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Lapatinib, Warnhinweise und Vorsichtsmaßnahmen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

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… (Fachinformation zu Lopinavir und Ritonavir, Gegenanzeigen)

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 )]. (Fachinformation zu Moxifloxacin, Arzneimittelwechselwirkungen)

…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… (Fachinformation zu Nirmatrelvir und Ritonavir, Gegenanzeigen)

Use of fluvoxamine or other strong CYP1A2 inhibitors should be discontinued prior to administration of ESBRIET and avoided during ESBRIET treatment. (Fachinformation zu Pirfenidon, Arzneimittelwechselwirkungen)

Strong CYP1A2 Inhibitors: Avoid concomitant use of strong CYP1A2 inhibitors. (Fachinformation zu Pomalidomid, Arzneimittelwechselwirkungen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Fluvoxamine (strong CYP1A2 inhibitor): Increases AUC for ramelteon and should not be used in combination. (Fachinformation zu Ramelteon, Gegenanzeigen)

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… (Fachinformation zu Ritonavir, Boxed Warning (umrahmter Warnhinweis))

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Strong CYP1A2 inhibitors (e.g., fluvoxamine): Avoid use of HETLIOZ in combination with strong CYP1A2 inhibitors because of increased exposure ( 7.1 , 12.3 ) (Fachinformation zu Tasimelteon, Arzneimittelwechselwirkungen)

Zanaflex is contraindicated in patients taking strong CYP1A2 inhibitors [see Drug Interactions ( 7.1 )] . with a history of hypersensitivity to tizanidine or the ingredients in Zanaflex. (Fachinformation zu Tizanidin, Gegenanzeigen)

QT Prolongation : Patients with congenital QT syndrome or taking class IA or III antiarrhythmics should avoid using vardenafil hydrochloride tablets. (Fachinformation zu Vardenafil, Warnhinweise und Vorsichtsmaßnahmen)

Considering the known proarrhythmic properties of mexiletine and the lack of evidence of improved survival for any antiarrhythmic drug in patients without life-threatening arrhythmias, the use of mexiletine as well as other antiarrhythmic agents should be reserved for patients with life-threatening ventricular arrhythmia. (Fachinformation zu Mexiletin, Boxed Warning (umrahmter Warnhinweis))

Concurrent use of mexiletine and theophylline may lead to increased plasma theophylline levels. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Concurrent use of mexiletine and theophylline may lead to increased plasma theophylline levels. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Drugs that inhibit CYP1A2 (e.g., fluvoxamine, ciprofloxacin) could increase the exposure of AGRYLIN. (Fachinformation zu Anagrelid, Arzneimittelwechselwirkungen)

Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with beta-blockers. (Fachinformation zu Atenolol, Arzneimittelwechselwirkungen)

Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with beta-blockers. (Fachinformation zu Atenolol und Chlortalidon, Arzneimittelwechselwirkungen)

Mexiletine : Decreases rate of mexiletine absorption. (Fachinformation zu Atropin, Arzneimittelwechselwirkungen)

…bradyarrhythmias or uncompensated heart failure • patients on drugs known to prolong 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. (Fachinformation zu Azithromycin, Warnhinweise und Vorsichtsmaßnahmen)

Effect of Other Drugs on Bendamustine Hydrochloride Injection CYP1A2 Inhibitors The coadministration of Bendamustine Hydrochloride Injection with CYP1A2 inhibitors may increase bendamustine plasma concentrations and may result in increased incidence of adverse reactions with Bendamustine Hydrochloride Injection [see Clinical Pharmacology (12.3) ] . (Fachinformation zu Bendamustin, Arzneimittelwechselwirkungen)

Amiodarone is an antiarrhythmic agent with negative chronotropic properties that may be additive to those seen with beta blockers. (Fachinformation zu Betaxolol, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Bictegravir, Emtricitabin und Tenofoviralafenamid, Arzneimittelwechselwirkungen)

Bisoprolol fumarate and hydrochlorothiazide tablets should be used with caution when myocardial depressants or inhibitors of AV conduction, such as certain calcium antagonists (particularly of the phenylalkylamine [verapamil] and benzothiazepine [diltiazem] classes), or antiarrhythmic agents, such as disopyramide, are used concurrently. (Fachinformation zu Bisoprolol und Hydrochlorothiazid, Arzneimittelwechselwirkungen)

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). (Fachinformation zu Bupropion, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Quinine sulfate is not recommended for use with other drugs known to cause QT prolongation, including Class IA antiarrhythmic agents (e.g., quinidine, procainamide, disopyramide), and Class III antiarrhythmic agents (e.g., amiodarone, sotalol, dofetilide). (Fachinformation zu Chinin, Warnhinweise und Vorsichtsmaßnahmen)

Concurrent administration of cimetidine and mexiletine has been reported to increase, decrease, or leave unchanged mexiletine plasma levels; therefore patients should be followed carefully during concurrent therapy. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

…syndrome, uncorrected electrolyte imbalance, such as hypokalemia or hypomagnesemia and cardiac disease, such as heart failure, myocardial infarction, or bradycardia), and patients receiving Class IA antiarrhythmic agents (quinidine, procainamide), or Class III antiarrhythmic agents (amiodarone, sotalol), tricyclic antidepressants, macrolides, and antipsychotics. (Fachinformation zu Ciprofloxacin, Warnhinweise und Vorsichtsmaßnahmen)

Such drugs include 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 (e.g., pentamidine, levomethadyl acetate, methadone). (Fachinformation zu Citalopram, Warnhinweise und Vorsichtsmaßnahmen)

…droperidol, pimozide), specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin), Class 1A antiarrhythmic medications (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). (Fachinformation zu Clozapin, Warnhinweise und Vorsichtsmaßnahmen)

Other antiarrhythmics e.g. amiodarone, bepridil, disopyramide, flecainide, lidocaine (systemic), mexiletine, propafenone, quinidine ↑ antiarrhythmics Therapeutic concentration monitoring, if available, is recommended for antiarrhythmics when co-administered with PREZISTA/ritonavir. digoxin ↑ digoxin The lowest dose of digoxin should initially be prescribed. (Fachinformation zu Darunavir, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Darunavir und Cobicistat, Arzneimittelwechselwirkungen)

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 )] . (Fachinformation zu Dasatinib, Warnhinweise und Vorsichtsmaßnahmen)

Other Drugs with Anticholinergic Activity The following agents may increase certain actions or side effects of anticholinergic drugs including dicyclomine hydrochloride: amantadine, antiarrhythmic agents of Class I (e.g., quinidine), antihistamines, antipsychotic agents (e.g., phenothiazines), benzodiazepines, MAO inhibitors, narcotic analgesics (e.g., meperidine),… (Fachinformation zu Dicycloverin, Arzneimittelwechselwirkungen)

…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,… (Fachinformation zu Droperidol, Warnhinweise)

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. (Fachinformation zu Elvitegravir, Cobicistat, Emtricitabin und Tenofovir, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

ECG monitoring is recommended if therapy is initiated in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, including Class Ia and III antiarrhythmics, and electrolyte abnormalities. (Fachinformation zu Eribulin, Warnhinweise und Vorsichtsmaßnahmen)

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. (Fachinformation zu Erythromycin, Warnhinweise)

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. (Fachinformation zu Etravirin, Arzneimittelwechselwirkungen)

Tizanidine (CYP1A2 Substrate) Although not studied clinically, famotidine is considered a weak CYP1A2 inhibitor and may lead to substantial increases in blood concentrations of tizanidine, a CYP1A2 substrate. (Fachinformation zu Famotidin, Arzneimittelwechselwirkungen)

Concurrent use of mexiletine and theophylline may lead to increased plasma theophylline levels. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

…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… (Fachinformation zu Fentanyl, Warnhinweise und Vorsichtsmaßnahmen)

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

In a formal, single-dose interaction study (n = 6 males) the clearance of mexiletine was decreased by 38% following the coadministration of fluvoxamine, an inhibitor of CYP1A2. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

…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 antidepressants, and certain macrolides and fluoroquinolones. (Fachinformation zu Foscarnet, Arzneimittelwechselwirkungen)

…Nifedipine, nimodipine, nisoldipine, verapamil Other Albendazole (decreases active metabolite), chlorpropamide, clozapine, cyclosporine, digoxin, disopyramide, folic acid, methadone, mexiletine, praziquantel, quetiapine 7.3 Hyperammonemia with Concomitant Use of Valproate Concomitant administration of phenytoin and valproate has been associated with an increased… (Fachinformation zu Fosphenytoin, Arzneimittelwechselwirkungen)

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

Tizanidine (CYP1A2 Substrate) Clinical Impact Famotidine is considered a weak CYP1A2 inhibitor and may lead to substantial increases in blood concentrations of tizanidine, a CYP1A2 substrate. (Fachinformation zu Ibuprofen und Famotidin, Arzneimittelwechselwirkungen)

…FANAPT should be avoided in 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… (Fachinformation zu Iloperidon, Warnhinweise und Vorsichtsmaßnahmen)

Antiarrhythmics disopyramide, dofetilide, dronedarone, quinidine digoxin Disopyramide, dofetilide, dronedarone, quinidine: The potential increase in plasma concentrations of these drugs when coadministered with ketoconazole may increase the risk of serious cardiovascular events including QT prolongation. (Fachinformation zu Ketoconazol, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Antiarrhythmics: amiodarone Effect on amiodarone, ledipasvir, and sofosbuvir concentrations unknown Coadministration of amiodarone with ledipasvir and sofosbuvir may result in serious symptomatic bradycardia. (Fachinformation zu Ledipasvir und Sofosbuvir, Arzneimittelwechselwirkungen)

Clinical Comment Antiarrhythmics: digoxin ↑ digoxin Use with caution and monitor digoxin therapeutic concentration. (Fachinformation zu Lenacapavir, Arzneimittelwechselwirkungen)

Levofloxacin 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. (Fachinformation zu Levofloxacin, Warnhinweise und Vorsichtsmaßnahmen)

…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… (Fachinformation zu Loperamid, Warnhinweise)

Examples: Drugs known to have potential to prolong QT interval: Class I and III antiarrhythmics, some neuroleptics and tricyclic antidepressants, and calcium channel blockers. (Fachinformation zu Methadon, Arzneimittelwechselwirkungen)

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). (Fachinformation zu Naltrexon und Bupropion, Arzneimittelwechselwirkungen)

Antiarrhythmics: Amiodarone, disopyramide, lidocaine Plasma concentrations may be decreased. (Fachinformation zu Nevirapin, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Ofloxacin, Vorsichtsmaßnahmen)

Inhibitors of CYP1A2 Fluvoxamine: Fluvoxamine, a CYP1A2 inhibitor, decreases the clearance of olanzapine. (Fachinformation zu Olanzapin, Arzneimittelwechselwirkungen)

Inhibitors of CYP1A2 — Fluvoxamine decreases the clearance of olanzapine. (Fachinformation zu Olanzapin und Fluoxetin, Arzneimittelwechselwirkungen)

Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Monitor electrocardiograms (ECG) in patients with congestive heart failure, bradyarrhythmias, and electrolyte abnormalities and in patients taking drugs known to prolong the QT interval, including Class Ia and III antiarrhythmics [see Drug Interactions (7.1)] . (Fachinformation zu Oxaliplatin, Warnhinweise und Vorsichtsmaßnahmen)

…paliperidone should be avoided in 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… (Fachinformation zu Paliperidon, Warnhinweise und Vorsichtsmaßnahmen)

Monitor patients who are at significant risk of developing QTc prolongation, including patients with a history of QT interval prolongation, in patients taking antiarrhythmics or other medications that may prolong QT interval, and those with relevant preexisting cardiac disease [see Drug Interactions (7.5)] . (Fachinformation zu Pazopanib, Warnhinweise und Vorsichtsmaßnahmen)

Concurrent use of mexiletine and theophylline may lead to increased plasma theophylline levels. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

…Nifedipine, nimodipine, nisoldipine, verapamil Other Albendazole (decreases active metabolite), chlorpropamide, clozapine, cyclosporine, digoxin, disopyramide, folic acid, methadone, mexiletine, praziquantel, quetiapine 7.3 Hyperammonemia with Concomitant Use of Valproate Concomitant administration of phenytoin and valproate has been associated with an increased… (Fachinformation zu Phenytoin, Arzneimittelwechselwirkungen)

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… (Fachinformation zu Pimavanserin, Warnhinweise und Vorsichtsmaßnahmen)

DRUG INTERACTIONS Because pimozide prolongs the QT interval of the electrocardiogram, an additive effect on QT interval would be anticipated if administered with other drugs, such as phenothiazines, tricyclic antidepressants or antiarrhythmic agents, which prolong the QT interval. (Fachinformation zu Pimozid, Arzneimittelwechselwirkungen)

Effects of Primaquine on the Pharmacokinetics of Other Drugs CYP1A2 Substrates Published clinical and non-clinical reports indicate primaquine inhibits CYP1A2 enzyme activity and thus may lead to increased exposure of CYP1A2 substrate drugs (e.g., duloxetine, alosetron, theophylline and tizanidine) when co-administered with Primaquine phosphate Tablets. (Fachinformation zu Primaquin, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Propranolol, Arzneimittelwechselwirkungen)

Ciprofloxacin or Other CYP1A2 Inhibitors Rasagiline plasma concentrations may increase up to 2 fold in patients using concomitant ciprofloxacin and other CYP1A2 inhibitors. (Fachinformation zu Rasagilin, Warnhinweise und Vorsichtsmaßnahmen)

…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… (Fachinformation zu Rifampicin, Arzneimittelwechselwirkungen)

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… (Fachinformation zu Rifapentin, Arzneimittelwechselwirkungen)

Strong to moderate CYP1A2 inhibitors: Co-administration may increase TIGLUTIK-associated adverse reactions ( 7.1 ) (Fachinformation zu Riluzol, Arzneimittelwechselwirkungen)

Therefore, if therapy with a drug known to be a potent inducer or inhibitor of CYP1A2 is stopped or started during treatment with ropinirole, adjustment of the dose of ropinirole may be required. (Fachinformation zu Ropinirol, Arzneimittelwechselwirkungen)

…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… (Fachinformation zu Ropivacain, Warnhinweise und Vorsichtsmaßnahmen)

Antiarrhythmics: amiodarone Effect on amiodarone, sofosbuvir, velpatasvir, and voxilaprevir concentrations unknown Coadministration of amiodarone with VOSEVI may result in serious symptomatic bradycardia. (Fachinformation zu Sofosbuvir und Velpatasvir, Arzneimittelwechselwirkungen)

Monitor electrolytes and electrocardiograms in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, including Class Ia and III antiarrhythmics. (Fachinformation zu Sorafenib, Warnhinweise und Vorsichtsmaßnahmen)

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. (Fachinformation zu Sunitinib, Warnhinweise und Vorsichtsmaßnahmen)

…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). (Fachinformation zu Tacrolimus, Warnhinweise und Vorsichtsmaßnahmen)

…are known to prolong QTc, including antipsychotic medications (e.g., chlorpromazine, haloperidol, thioridazine, ziprasidone), antibiotics (e.g., moxifloxacin), Class 1A (e.g., quinidine, procainamide) and Class III (e.g., amiodarone, sotalol) antiarrhythmic medications or any other medications known to prolong the QTc interval [see Drug Interactions ( 7.5 )]. (Fachinformation zu Tetrabenazin, Warnhinweise und Vorsichtsmaßnahmen)

Concurrent use of mexiletine and theophylline may lead to increased plasma theophylline levels. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

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,… (Fachinformation zu Toremifen, Arzneimittelwechselwirkungen)

…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),… (Fachinformation zu Trazodon, Warnhinweise und Vorsichtsmaßnahmen)

…aprepitant, bosentan, carbamazepine, phenobarbital, rifampin CYP1A2 acyclovir, allopurinol, caffeine, cimetidine, ciprofloxacin, disulfiram, enoxacin, famotidine, fluvoxamine, methoxsalen, mexiletine, norfloxacin, oral contraceptives, phenylpropanolamine, propafenone, propranolol, terbinafine, thiabendazole, ticlopidine, verapamil, zileuton montelukast, moricizine, omeprazole,… (Fachinformation zu Warfarin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). (Fachinformation zu Amitriptylin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine, cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). (Fachinformation zu Amoxapin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). (Fachinformation zu Clomipramin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type IC antiarrhythmics propafenone and flecainide). (Fachinformation zu Desipramin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

A variety of antiarrhythmics such as quinidine or propranolol were also added, sometimes with improved control of ventricular ectopy. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

(E) In vitro studies of CYP enzymes, UGTA enzymes and OATP1B1 transporter In vitro studies have shown that gemfibrozil is an inhibitor of CYP1A2, CYP2C8, CYP2C9, CYP2C19, OATP1B1, and UDP-glucuronosyltransferase (UGT) 1A1 and 1A3 (see WARNINGS ). (Fachinformation zu Gemfibrozil, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Haloperidol, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

These include Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmics, certain antipsychotics (e.g., ziprasidone, iloperidone, clozapine, quetiapine, chlorpromazine), certain antidepressants (e.g., citalopram, fluoxetine), certain antibiotics (e.g., azithromycin, erythromycin, clarithromycin, gatifloxacin, moxifloxacin);… (Fachinformation zu Hydroxyzin, Vorsichtsmaßnahmen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). (Fachinformation zu Imipramin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

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 )] . (Fachinformation zu Lamotrigin, Warnhinweise und Vorsichtsmaßnahmen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

CYP1A2 Isozyme – Nefazodone and its metabolites have been shown in vitro not to inhibit CYP1A2. (Fachinformation zu Nefazodon, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). (Fachinformation zu Nortriptylin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Drug Interactions Metabolism of a number of medications, including antipsychotics, antidepressants, β-blockers, and antiarrhythmics, occurs through the cytochrome P450 2D6 isoenzyme (debrisoquine hydroxylase). (Fachinformation zu Perphenazin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics, propafenone and flecainide). (Fachinformation zu Protriptylin, Vorsichtsmaßnahmen)

Aminoglycoside antibiotics, local and some general anesthetics, antiarrhythmic agents, and other drugs that interfere with neuromuscular transmission should be used cautiously, if at all. (Fachinformation zu Pyridostigmin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

CYP1A2 Substrates Where Small Concentration Changes May Lead to Serious Adverse Reactions Clinical Impact Ritlecitinib is a CYP1A2 inhibitor. (Fachinformation zu Ritlecitinib, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

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. (Fachinformation zu Terbinafin, Arzneimittelwechselwirkungen)

When phenytoin or other hepatic enzyme inducers such as rifampin and phenobarbital have been taken concurrently with mexiletine, lowered mexiletine plasma levels have been reported. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a formal study, benzodiazepines were shown not to affect mexiletine plasma concentrations. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

The drugs that inhibit cytochrome P450 2D6 include some that are not metabolized by the enzyme (quinidine; cimetidine) and many that are substrates for P450 2D6 (many other antidepressants, phenothiazines, and the Type 1C antiarrhythmics propafenone and flecainide). (Fachinformation zu Trimipramin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

CYP1A2 Venlafaxine did not inhibit CYP1A2 in vitro . (Fachinformation zu Venlafaxin, Arzneimittelwechselwirkungen)

ECG intervals (PR, QRS, and QT) were not affected by concurrent mexiletine and digoxin, diuretics, or propranolol. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

Mexiletine does not alter serum digoxin levels but magnesium-aluminum hydroxide, when used to treat gastrointestinal symptoms due to mexiletine, has been reported to lower serum digoxin levels. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)

ECG intervals (PR, QRS, and QT) were not affected by concurrent mexiletine and digoxin, diuretics, or propranolol. (Fachinformation zu Mexiletin, Arzneimittelwechselwirkungen)