Atorvastatin is a prescription medicine used to lower LDL (“bad”) cholesterol and reduce the risk of cardiovascular events such as heart attacks and strokes. It belongs to a group of medicines called statins.
How atorvastatin works
Atorvastatin blocks an enzyme in the liver involved in making cholesterol. This helps:
- Lower LDL cholesterol.
- Reduce total cholesterol and triglycerides.
- Sometimes slightly increase HDL (“good”) cholesterol.
- Slow the buildup of fatty plaques in arteries (atherosclerosis).
Why doctors commonly prescribe it
Doctors may prescribe atorvastatin for people who:
- Have high LDL cholesterol.
- Have had a heart attack, stroke, or other cardiovascular disease.
- Have diabetes or other risk factors that increase heart disease risk.
- Have a higher estimated risk of developing heart disease in the future.
Common side effects
Many people take atorvastatin without major problems, but possible side effects include:
- Muscle aches or weakness.
- Headache.
- Digestive symptoms such as nausea or diarrhea.
- Mild increases in liver enzymes on blood tests.
Rarely, statins can cause serious muscle injury or significant liver problems. Seek medical advice if you develop severe muscle pain, unusual weakness, dark urine, or yellowing of the skin or eyes.
Important considerations
- Take it exactly as prescribed; do not stop it without discussing it with your healthcare provider.
- Tell your doctor about all medicines and supplements you take because some can interact with atorvastatin.
- Lifestyle habits—such as a heart-healthy diet, exercise, avoiding smoking, and maintaining a healthy weight—work together with the medication.
Atorvastatin is commonly prescribed because lowering LDL cholesterol has strong evidence for reducing the risk of serious cardiovascular events in people who can benefit from treatment.
