Which are side effects of simvastatin for the cholesterol?

Side effects: The commonest side effects are muscle pain and damage. Rarely rhabdomyolysis, lysis if muscle cells may occur and is a serious issue. Other side effects include liver damage. Gastro-intestinal disorders like constipation, diarrhea, skin rashes, precipitation of diabetes mellitus and neurologic problems like memory loss.

Muscle Aches/others: Primary side effects of statins in general are muscular, either aches, or in more severe cases ( and less common) muscle breakdown (rhabdomyolysis) which can lead to kidney failure and can be life threatening. Statins can also increase the risk of diabetes, primarily in those at risk for diabetes, and this does not seem to offset the benefits in those who qualify for statin therapy. See addtional.