Failure of OCP is caused by: (A) Rifampicin, (B) Nevirapine, (C) Phenytoin, (D) AH of the above
Answer is D. Ans-D A clinical guide to Contraception Leon speroffDrugs causing failure of OCPRifampicinRifabutinPhenytoinNevirapinePhenobarbitoneTopiramateVigabatrinCarbamazepineEthosuximideGriseofulvin