hello all, i came across an nclex practice question and now i am stuck. can someone help explain and choose which would be the appropriate answer. the majority of drug metabolism is catalyzed by the cytochrome p-450 group of enzymes......when these enzymes are inhibited, a drug simultaneously given will a. reach higher-than-intended levels in the body. b. be inhibited and levels in the body will drop. c. have no effect in the body. d. create the potential for anaphylaxis.