Terfenadine Interactions

There are 389 drugs known to interact with terfenadine, along with 1 alcohol/food interaction. Of the total drug interactions, 96 are major, 287 are moderate, and 6 are minor.

View all 389 medications that may interact with terfenadine
View terfenadine alcohol/food interactions (1)

Most frequently checked interactions

View interaction reports for terfenadine and the medicines listed below.

Major
Moderate
Minor
Unknown

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Terfenadine alcohol/food interactions

There is 1 alcohol/food interaction with terfenadine.

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Related treatment guides

Allergies

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.