A member asked:

Is that true, terbinafine stay up to 8 weeks after stop taking it.? so, will it make my skin more sensitive to sun for 8 weeks after stopping terbinafine?

A doctor has provided 1 answer
Dr. Daniel Ziegler answered

Specializes in Emergency Medicine

Terbinafine concentrates in the skin after you take it, and while it has a serum half-life (the time it takes to clear half the drug from your bloodstream) of 14 hours, its half-life in skin is from 8 to 16 days. Photosensitivity is a known side effect that occurs in from one to ten percent of patients, so if you are in that group, you may sunburn more easily, but this effect decreases daily.

Answered 7/11/2022

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