Dextromethorphan + Terbinafine Hydrochloride Interaction
Moderateinteraction on record
Description
Terbinafine increases dextromethorphan/dextrorphan metabolite ratio by 16- to 97-fold, converting extensive metabolizers to poor metabolizer status. Careful monitoring and dose reduction may be required.
Mechanism
CYP450 2D6 inhibition
Source: NLP:terbinafine hydrochloride