[What side effects may I notice from taking simvastatin? (Back to top)
Side effects that you should report to your prescriber or health care professional as soon as possible:
Rare or uncommon:
•dark yellow or brown urine
•decreased urination, difficulty passing urine
•fever
•muscle pain, tenderness, cramps, or weakness
•redness, blistering, peeling or loosening of the skin, including inside the mouth
•skin rash, itching
•unusual tiredness or weakness
•yellowing of the skin or eyes

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):
•constipation
•headache
•upset stomach, indigestion, gas, heartburn

What should I watch for while taking simvastatin? (Back to top)
Visit your prescriber or health care professional for regular checks on your progress. You may need to have blood tests drawn to make sure your liver is working properly.

Tell your prescriber or health care professional as soon as you can if you get any unexplained muscle pain, tenderness, or weakness, especially if you also have a fever and tiredness.

Some medicines increase the risk of muscle side effects while taking simvastatin. Discuss your drug regimen with your health care provider if you are prescribed certain antibiotics or antifungals which are not recommended to be taken with simvastatin (examples: clarithromycin, erythromycin, itraconazole, ketoconazole). Your prescriber may decide to temporarily stop taking simvastatin while you are taking a short course of the antibiotic or antifungal therapy. Alternatively, your health care provider may prescribe another antibiotic or antifungal medicine for your condition.

Simvastatin is only part of a total cholesterol-lowering program. Your physician or dietician can suggest a low-cholesterol and low-fat diet that will reduce your risk of getting heart and blood vessel disease. Avoid alcohol and smoking, and keep a proper exercise schedule.

If you are going to have surgery tell your prescriber or health care professional that you are taking simvastatin.

This medicine should not be used by women who are pregnant or breast-feeding. There is a potential for serious side effects to an unborn child or to an infant. Talk to your health care professional or pharmacist for more information.]
http://www.drugdigest.org/DD/DVH/Use...statin,00.html
and a list of more side effects -
http://www.google.com/search?hl=en&c...statin,00.html