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Drug interactions between amifampridine and codeine / dexbrompheniramine / pseudoephedrine

Results for the following 2 drugs:
amifampridine
codeine/dexbrompheniramine/pseudoephedrine

Interactions between your drugs

Moderate

codeine amifampridine

Applies to: codeine / dexbrompheniramine / pseudoephedrine and amifampridine

Consumer information for this interaction is not currently available.

MONITOR: The use of amifampridine is associated with a dose-related risk of seizures, and the risk may be further increased when coadministered with other drugs that can reduce the seizure threshold. Seizures have occurred in patients without a history of seizures taking amifampridine at recommended dosages and at various times after initiation of treatment. Reported incidence is approximately 2%. Many of the patients were taking medications or had comorbid medical conditions that may have lowered the seizure threshold.

MANAGEMENT: Caution is advised if amifampridine is coadministered with any substance that can reduce the seizure threshold, particularly in the elderly and in patients with other risk factors for seizures (e.g., head trauma; brain tumor; severe hepatic cirrhosis; metabolic disorders; CNS infections; excessive use of alcohol or sedatives; addiction to opiates, cocaine, or stimulants; diabetes treated with oral hypoglycemic agents or insulin). Consider discontinuation or dose reduction of amifampridine in patients who experience a seizure during treatment. Use of amifampridine is contraindicated in patients with a history of seizures.

References

  1. EMEA. European Medicines Agency "EPARs. European Union Public Assessment Reports. Available from: URL: http://www.ema.europa.eu/ema/index.jsp?curl=pages/includes/medicines/medicines_landingpage.jsp&mid."
  2. "Product Information. Firdapse (amifampridine)." Catalyst Pharmaceuticals, Inc., Coral Gables, FL.

Drug and food interactions

Moderate

dexbrompheniramine food

Applies to: codeine / dexbrompheniramine / pseudoephedrine

Alcohol can increase the nervous system side effects of dexbrompheniramine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with dexbrompheniramine. Do not use more than the recommended dose of dexbrompheniramine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

Switch to professional interaction data

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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.

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