atorvastatin is a prescription medication in the statin class. It is commonly prescribed to lower LDL (“bad”) cholesterol and reduce the risk of heart attacks, strokes, and other cardiovascular diseases.
How atorvastatin works
Atorvastatin blocks an enzyme in the liver called HMG-CoA reductase, which the body uses to make cholesterol. As a result, it:
- Lowers LDL (“bad”) cholesterol.
- Lowers triglycerides.
- Can modestly increase HDL (“good”) cholesterol.
Why doctors prescribe it
A healthcare professional may prescribe atorvastatin if you:
- Have high LDL cholesterol.
- Have diabetes and are at increased risk of cardiovascular disease.
- Have had a heart attack, stroke, or certain artery diseases.
- Have a high estimated risk of future cardiovascular disease based on factors such as age, blood pressure, cholesterol levels, and smoking history.
Common side effects
Many people take atorvastatin without significant problems. Possible side effects include:
- Muscle aches or soreness.
- Headache.
- Nausea or diarrhea.
- Mild increases in liver enzymes.
Rare but serious side effects
Seek medical attention if you develop:
- Severe muscle pain or weakness, especially with fever or dark-colored urine (which could indicate a rare muscle injury).
- Yellowing of the skin or eyes, dark urine, or severe abdominal pain (possible liver problems).
- Signs of a severe allergic reaction, such as swelling of the face or difficulty breathing.
Important points
- Take it exactly as prescribed.
- Don’t stop taking it without talking to your healthcare professional, as stopping may increase your cardiovascular risk.
- Tell your healthcare professional about all other medications and supplements you take, since some can interact with atorvastatin.
- Large amounts of grapefruit or grapefruit juice can increase atorvastatin levels in some people, so ask your clinician or pharmacist whether you should limit them.
Medication is only one part of treatment. A heart-healthy diet, regular physical activity, maintaining a healthy weight, and not smoking all help reduce cardiovascular risk alongside atorvastatin.
If you’ve been prescribed atorvastatin, tell me your dose (e.g., 10 mg, 20 mg, 40 mg, or 80 mg) and why it was prescribed, and I can explain what to expect and answer questions about side effects or interactions.
