Let's take a minute to talk about your medication. This is simvastatin, and it improves cholesterol and triglyceride levels in your blood. This can lower your risk of having a heart attack or stroke. You can take simvastatin with or without food, unless your doctor says otherwise. Most people tolerate simvastatin well. Common side effects include a headache, stomach upset and constipation. These are normal if they are mild and should go away. You may notice mild memory problems or aches in your muscles or joints. Talk to your doctor if these happen. In rare cases, muscle problems can be serious. Call your doctor right away if you have unusual muscle pain or weakness. Other rare but serious side effects include allergic skin reactions and liver problems. To help keep this medicine safe for you, your doctor will order blood tests and follow you closely. You should call your doctor right away if your skin or eyes look yellow, urine looks dark, or if you lose your appetite or have pain in your upper belly. It is important to check with your doctor or pharmacist before taking herbal remedies and other medicines, even if they don't require a prescription. Also, check before drinking alcohol or grapefruit juice. This medicine can be unsafe for babies. Women should talk to their doctors before becoming pregnant or breastfeeding. For best results with simvastatin, take it exactly as directed. Also, follow the diet and exercise programs that your doctor recommends.