I am on Pravachol 40mg and I am experiencing musculer problems. First let me tell you that I was on Crestor and told my doctor that I was experiending musculer problems. He took me off Crestor for 3 weeks and now he is giving me Pravachol 40 mg. I have taken them only 4 days and already I am having trouble. I did have back surgery a few years back and now have a serious problem with my nerves and muscles in my right leg. They have done everything possible to solve my problem that is short of another or multiple operations. I believe if there is anything else I could take for my problem I would rather not take Pravachol. I am now being treated by the IDD machine (therapeutic) and I am now on my 5th trip to the table. I was feeling good until I woke up this morning with the same pain as I have had with Crestor. Could you tell me have I given the Medicine enough time or do I continue until I can not move my muscles and my nerves are shot?. NOTE: I forgot to add that upon getting up in the morning I can not step down on the feet as the pain in my heal area is so very painful.