Generic name: Simvastatin.

Zocor is an antihyperlipidemic (lipid-lowering medication). It is thought to work by reducing the body’s production of certain fats.

Quick Facts About Zocor


Used to lower cholesterol levels when diet alone does not sufficiently lower cholesterol levels.

Zocor Dosage

Doctor will have you follow a cholesterol-lowering diet for 3 to 6 months before prescribing Zocor. Follow exercise program prescribed by your doctor. Zocor is a supplement, not a substitute for lowering cholesterol. Take Zocor exactly as prescribed.

  • Usual adult dose: initially — 5 to 10 milligrams per day taken as a single dose in the evening. Doctor may increase up to 40 milligrams per day. Doctor may adjust dose every 4 weeks, reducing as cholesterol levels come down. If you have severe kidney disease — 5 milligrams per day is prescribed, and use with caution. Seniors — 20 milligrams per day or less.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: take as soon as possible, unless it is the next day. In that case, do not take the missed dose; go back to regular schedule. Do not double doses.

Zocor Side Effects

Overdose symptoms:

no specific information available. If you suspect an overdose, immediately seek medical attention.

More common side effects: abdominal pain, constipation, diarrhea, gas, headache, muscle pain, nausea, upper respiratory infection, upset stomach, weakness. Other potential side effects: aching joints and muscles, altered sense of taste, anxiety, appetite loss, breast enlargement in men, depression, difficulty moving eyes or facial muscles, diminished sex drive or sexual performance, dizziness, hepatitis, insomnia, itching, loss of hair, memory loss, nerve pain or palsy, numbness or tingling, pancreatitis, progression of cataracts, tremor, vomiting.

No known less common or rare Zocor side effects.


Inform your doctor before combining Zocor with:

blood thinners such as Coumadin, cimetidine (Tagamet), clofibrate (Atromid-S), cyclosporine (Sandimmune), digoxin (Lanoxin), erythromycin (PCE), gemfibrozil (Lopid), nicotinic acid, spironolactone (Aldactone).

No known food/other substance interactions.

Special Cautions

May cause birth defects; doctor will prescribe only if you understand risks and are highly unlikely to become pregnant while taking Zocor. If pregnant or planning to become pregnant, inform your doctor immediately. Appears in breast milk and can cause serious adverse effects on a nursing baby.

Seniors should use with caution.

Not generally prescribed for children.

  • Do not take if sensitive to or allergic to Zocor.
  • Do not take if you have active liver disease.
  • Doctor may advise checking liver enzyme levels (blood test) prior to starting Zocor, and every 6 weeks for the first 3 months of treatment, every 8 weeks for the rest of year 1, and every 6 months thereafter.
  • Inform your doctor if you experience unexplained muscle tenderness or weakness right away, especially if accompanied with a fever or sick feeling. May indicate muscle tissue damage. To minimize this risk, do not take Zocor at the same time you are taking other cholesterol-lowering medications such as Lopid.
  • Doctor may discontinue Zocor if risk of muscle or kidney damage increases, or you experience severe infection or seizures.


HealthSurvey.org provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Zocor side effects, please contact your healthcare provider