Quinidine + Tetrabenazine Interaction
Majorinteraction on record
Description
Strong CYP2D6 inhibitor that markedly increases exposure to tetrabenazine metabolites. Dose reduction necessary; maximum daily dose 50 mg, maximum single dose 25 mg.
Mechanism
CYP2D6 inhibition increases α-HTBZ and β-HTBZ metabolite exposure
Source: NLP:tetrabenazine