A short list: Tacrolimus Cyclosporine Cisapride Ca Channel Blockers (nifedipine, amlodipine, nicardipine, diltiazem, etc) Benzodiazepines (diazepam, lorazepam, midazolam, etc) Astemizole There may be others. Bryan "Si vis pacem para bellum" > Any idea which kind of prescription drugs react poorly with Grapefruit > juice?