Nifedipine + Quinidine Gluconate Interaction
Unknowninteraction on record
Description
Very rarely, and again by mechanisms not understood, quinidine levels are decreased by coadministration of nifedipine . Presumably because both drugs are metabolized by cytochrome P450 IIIA4 , coadministration of quinidine causes variable slowing of the metabolism of nifedipine .
Source: FDA drug label - quinidine gluconate