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Drug Interactions between doravirine and Sarafem

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

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Interactions between your drugs

Minor

FLUoxetine doravirine

Applies to: Sarafem (fluoxetine) and doravirine

Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations of doravirine, which is primarily metabolized by the isoenzyme. In 10 study subjects, administration of a single 50 mg dose of doravirine with the potent CYP450 3A4 inhibitor ritonavir (100 mg twice daily) increased doravirine peak plasma concentration (Cmax), systemic exposure (AUC) and trough plasma concentration (C24hr) by an average of 31%, 254% and 191%, respectively, compared to administration of doravirine alone. When a single 100 mg dose of doravirine was administered with ketoconazole 400 mg once daily in 10 study subjects, doravirine Cmax, AUC and C24hr increased by an average of 25%, 206% and 175%, respectively. These changes are not considered clinically significant.

References

  1. (2018) "Product Information. Pifeltro (doravirine)." Merck & Co., Inc

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Drug and food interactions

Moderate

FLUoxetine food

Applies to: Sarafem (fluoxetine)

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

  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
View all 4 references

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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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