Simvastatin (Zocor) is used to treat high cholesterol and to reduce risk of heart disease. Learn about its side effects, dosage, uses, and more. Along with its needed effects, simvastatin (the active ingredient contained in Zocor) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Zocor (simvastatin) is a drug prescribed to reduce triglycerides, total cholesterol (LDL), and increasing HDL cholesterol. Common side effects of Zocor include diarrhea, vomiting, headache, and abdominal pain. Zocor belongs to the drug class of Statins. Uses and dosage information are provided. Zocor (simvastatin) reduces low-density lipoprotein cholesterol and total cholesterol in the blood. Includes Zocor side effects, interactions and indications. Our Zocor (simvastatin) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Simvastatin is used to lower blood levels of bad cholesterol (low-density lipoprotein, or LDL) and triglycerides, and increase levels of good cholesterol (high-density lipoprotein, or HDL). Simvastatin is also used to lower the risk of stroke, heart attack, and other heart complications in Simvastatin is a white to off-white, nonhygroscopic, crystalline powder that is practically insoluble in water, and freely soluble in chloroform, methanol and ethanol. Find patient medical information for Simvastatin Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Find patient medical information for Zocor Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Simvastatin is used to reduce the chances of developing health issues such as stroke and heart disease that are partially caused by higher cholesterol levels.