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Drug Interactions between caspofungin and felbamate

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

felbamate caspofungin

Applies to: felbamate and caspofungin

MONITOR: Coadministration with inducers or mixed inducer/inhibitors of certain metabolic pathways may produce clinically meaningful reductions in the plasma concentrations of caspofungin. This assumption is based on results from regression analyses of patient pharmacokinetic data derived from a small number of patients who were administered the drugs efavirenz, nelfinavir, nevirapine, phenytoin, rifampin, dexamethasone, or carbamazepine prior to and/or concurrently with caspofungin. There are no data from formal drug interaction studies to evaluate these regression analyses, and it is not known which metabolic pathway involved in caspofungin clearance may be inducible.

MANAGEMENT: Caspofungin product labeling recommends that during coadministration with efavirenz, nelfinavir, nevirapine, phenytoin, rifampin, dexamethasone or carbamazepine, an increase in the daily dosage to 70 mg (following the usual 70 mg loading dose) should be considered in patients who are not clinically responding. While data are lacking for other drugs that are known to induce hepatic enzymes, the possibility of a similar interaction should be considered.

References (1)
  1. (2001) "Product Information. Cancidas (caspofungin)." Merck & Co., Inc

Drug and food interactions

Moderate

felbamate food

Applies to: felbamate

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References (4)
  1. Warrington SJ, Ankier SI, Turner P (1986) "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology, 15, p. 31-7
  2. Gilman AG, eds., Nies AS, Rall TW, Taylor P (1990) "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: Pergamon Press Inc.
  3. (2012) "Product Information. Fycompa (perampanel)." Eisai Inc
  4. (2015) "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc

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.

See also

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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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