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Interactions between Benzgalantamine and Vimpat

1 drug interaction and 13 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

lacosamide benzgalantamine

Applies to: Vimpat (lacosamide) and benzgalantamine
Monitor

Since acetylcholinesterase inhibitors can cause bradycardia and heart block due to vagotonic effects on the sinoatrial and atrioventricular nodes, additive effects may occur with other agents that also possess bradycardic effects such as beta-blockers, calcium channel blockers, digitalis, some protease inhibitors (atazanavir, lopinavir-ritonavir, saquinavir), amiodarone, dronedarone, moricizine, lacosamide, and mefloquine. A group of French investigators conducted a retrospective analysis of spontaneous reports in the French Pharmacovigilance Database concerning adverse drug reactions (ADRs) associated with use of the acetylcholinesterase inhibitors donepezil, galantamine, and rivastigmine. Two hundred and five cases of potential drug-drug interaction with bradycardic drugs (beta-blockers, calcium channel blockers, amiodarone, digoxin) were identified, 73 of which were associated with serious ADRs including five deaths due to syncope, bradycardia, arrhythmia, or cardiac arrest. However, no details on the individual cases such as patient characteristics or concomitant risk factors were provided, making the contribution of a potential drug interaction difficult to evaluate. The remainder of the cases were of no apparent clinical consequences. In contrast, a phase III trial of donepezil consisting of 1035 patients reported no significant increase in risk ratios for bradycardia during concomitant use of beta-blockers, nondihydropyridine calcium channel blockers, or digoxin.

Management

Caution is advised if acetylcholinesterase inhibitors are used concomitantly with bradycardic drugs. Patients with underlying structural heart disease, preexisting conduction system abnormalities, ischemic heart disease, or cardiomyopathies may be at increased risk for developing cardiac conduction disturbances and atrioventricular block. Patients should be advised to notify their physician if they experience dizziness, lightheadedness, fainting, or irregular heartbeat.

References (6)
  1. (2001) "Product Information. Cognex (tacrine)." Parke-Davis
  2. (2001) "Product Information. Aricept (donepezil)." Pfizer U.S. Pharmaceuticals
  3. (2001) "Product Information. Exelon (rivastigmine)." Novartis Pharmaceuticals
  4. (2005) "Product Information. Razadyne (galantamine)." Johnson and Johnson Medical Inc
  5. Tavassoli N, Sommet A, Lapeyre-Mestre M, Bagheri H, Montrastruc JL (2007) "Drug interactions with cholinesterase inhibitors : an analysis of the French pharmacovigilance database and a comparison of two national drug formularies (vidal, british national formulary)." Drug Saf, 30, p. 1063-71
  6. Tiseo PJ, Perdomo CA, Friedhoff LT (1998) "Concurrent administration of donepezil HCI and digoxin: assessment of pharmacokinetic changes." Br J Clin Pharmacol, 46(Suppl 1), p. 40-4

Food/lifestyle interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Disease interactions

13 potential interactions Applies to: 11 conditions, including Depression, Asthma, Heart Attack, COPD, and Seizures.

Arrhythmia

Major:

benzgalantamine

Benzgalantamine has a major potential interaction with Arrhythmia.

Due to their pharmacological action, cholinesterase inhibitors can have a vagotonic effect on the sinoatrial and atrioventricular nodes producing bradycardia or heart block. Therapy with cholinesterase inhibitors should be administered cautiously in patients with preexisting bradycardia or underlying cardiac conduction abnormalities. Syncopal episodes have been reported. Atropine may be used to reverse bradycardia produced by cholinesterase inhibitors.

Asthma

Major:

benzgalantamine

Benzgalantamine has a major potential interaction with Asthma.

Cholinesterase inhibitors inhibit the hydrolysis of acetylcholine. The enhanced effect of acetylcholine produces constriction of the bronchi, increased bronchial secretions, and bronchospasm. Therapy with cholinesterase inhibitors should be administered cautiously in patients with respiratory dysfunction, history of asthma, or obstructive pulmonary disease. Respiratory function should be closely monitored for the occurrence of respiratory adverse reactions. Use of atropine along with discontinuation of the cholinesterase inhibitor may be required for serious respiratory distress.

Cardiovascular Conditions and Disorders

Moderate:

Vimpat

The lacosamide in Vimpat has a moderate potential interaction with Cardiovascular Conditions and Disorders.

Dose dependent prolongation in PR interval has been observed with the use of lacosamide. This drug should be used with caution in patients with known conduction abnormalities (AV block, sick sinus syndrome) in patients with sodium channelopathies (e.g., Brugada syndrome), with severe cardiac disease (myocardial ischemia, heart failure, structural disease), or in treatment with other drugs that also prolong PR interval. An ECG is recommended before beginning treatment, and after dose titration to a steady maintenance dose.

COPD

Major:

benzgalantamine

Benzgalantamine has a major potential interaction with COPD.

Cholinesterase inhibitors inhibit the hydrolysis of acetylcholine. The enhanced effect of acetylcholine produces constriction of the bronchi, increased bronchial secretions, and bronchospasm. Therapy with cholinesterase inhibitors should be administered cautiously in patients with respiratory dysfunction, history of asthma, or obstructive pulmonary disease. Respiratory function should be closely monitored for the occurrence of respiratory adverse reactions. Use of atropine along with discontinuation of the cholinesterase inhibitor may be required for serious respiratory distress.

Depression

Major:

Vimpat

The lacosamide in Vimpat has a major potential interaction with Depression.

Antiepileptic drugs can increase depression and suicidal thoughts or behaviors in patients receiving these drugs for any indication. Patients should be monitored for the emergence or worsening of depression, suicidal thoughts and unusual changes in mood or behavior. Caregivers and family should be alert for the emergence or worsening of symptoms. Behaviors of concern should be reported immediately to the healthcare providers.

Heart Attack

Moderate:

Vimpat

The lacosamide in Vimpat has a moderate potential interaction with Heart Attack.

Dose dependent prolongation in PR interval has been observed with the use of lacosamide. This drug should be used with caution in patients with known conduction abnormalities (AV block, sick sinus syndrome) in patients with sodium channelopathies (e.g., Brugada syndrome), with severe cardiac disease (myocardial ischemia, heart failure, structural disease), or in treatment with other drugs that also prolong PR interval. An ECG is recommended before beginning treatment, and after dose titration to a steady maintenance dose.

Heart Disease

Moderate:

Vimpat

The lacosamide in Vimpat has a moderate potential interaction with Heart Disease.

Dose dependent prolongation in PR interval has been observed with the use of lacosamide. This drug should be used with caution in patients with known conduction abnormalities (AV block, sick sinus syndrome) in patients with sodium channelopathies (e.g., Brugada syndrome), with severe cardiac disease (myocardial ischemia, heart failure, structural disease), or in treatment with other drugs that also prolong PR interval. An ECG is recommended before beginning treatment, and after dose titration to a steady maintenance dose.

Liver Disease

Moderate:

benzgalantamine

Benzgalantamine has a moderate potential interaction with Liver Disease.

In patients with moderate hepatic impairment (Child-Pugh score of 7 to 9), the dosage of galantamine or benzgalantamine should generally not exceed 16 mg/day or 20 mg/day, respectively. The use of galantamine or benzgalantamine in patients with severe hepatic impairment (Child-Pugh score of 10 to 15) is not recommended.

Moderate:

Vimpat

The lacosamide in Vimpat has a moderate potential interaction with Liver Disease.

Patients with mild to moderate hepatic impairment should be observed closely during lacosamide dose titration. A maximum dose of 300 mg/day is recommended for these patients. Lacosamide has not been evaluated in patients with severe hepatic impairment, so its use is not recommended in this group of patients.

Peptic Ulcer

Moderate:

benzgalantamine

Benzgalantamine has a moderate potential interaction with Peptic Ulcer.

The use of cholinesterase inhibitors is associated with an increase in gastric acid secretion and gastric contractions. Monitor for symptoms of active or occult gastrointestinal bleeding, especially in patients at increased risk for developing ulcers (e.g., history of ulcer disease or concurrent use of nonsteroidal anti-inflammatory drugs).

Renal Dysfunction

Moderate:

benzgalantamine

Benzgalantamine has a moderate potential interaction with Renal Dysfunction.

In patients with creatinine clearance of 9 to 59 mL/min, the dosage of galantamine or benzgalantamine should generally not exceed 16 mg/day or 20 mg/day, respectively. In patients with creatinine clearance less than 9 mL/min, the use of galantamine or benzgalantamine is not recommended.

Moderate:

Vimpat

The lacosamide in Vimpat has a moderate potential interaction with Renal Dysfunction.

A maximum dose of 300 mg/day of lacosamide is recommended for patients with severe renal impairment (CrCl <30 mL/min) and in patients with end stage renal disease. Lacosamide is effectively removed from plasma by hemodialysis and a dose supplementation of 50% should be considered following this procedure. Dose titration should be done with caution in all renally impaired patients.

Seizures

Moderate:

benzgalantamine

Benzgalantamine has a moderate potential interaction with Seizures.

Cholinesterase inhibitors have been associated with convulsions and tremor. Therapy with cholinesterase inhibitors should be administered cautiously in patients with seizure disorders. Patients with Alzheimer's disease should be closely monitored for seizures.

More resources

benzgalantamine

A total of 455 drugs are known to interact with benzgalantamine.

Vimpat

A total of 162 drugs are known to interact with Vimpat.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.