Hi David My husband is on this forum and I know of a place on the internet where you can find out about drugs and drug interactions. I believe it is through the NORD data base. Just GO NORD. I hope this helps you out and I know that there is another one also but I can't recall the name right now( I have MS and my memory is not so good lately). If you have any questions you can write me at Shannon Lees 71112,3530@CompuServe