
alcohol, nicotine, cannabis, amphetamines, Amitriptyline, Celebrex, Cipramil, Lexapro, Codeine, Valium,
Warfarin, Dilantin, Efexor, Feldene, Brufen, grapefruit, Luvox, Aropax, Prednisone, Prozac, Serzone, Risperdal, Tegretol, Voltaren, Zoloft and Zyprexa.
As I understand it, there are some 50 genes, which determine a similar number of cytochromes, and so a persons genetic makeup will determine if and how such drugs are metabolised.