Hi David: I am sending this again because I sent it last evening and it hasn't shown up yet. David: I quote from a handout I was given at a support meeting: "WARNING Sandoz Pharmaceuticals has issued a warning of reports of fatal interactions between Eldepryl (Selegiline hydrochloride) and meperidine known as Demerol, and other trade names. Patients contemplating surgery are advised to bring this notice to the attention of their physician. Further information can be obtained from pharmacies - ask for prescribing iinformation - or contact Sandoz Pharmaceuticals at 800-631-8184." Good luck!! Liz S ~~