Medicines

Rosuvastatin

Rosuvastatin is a strong statin. It lowers cholesterol and reduces your risk of a heart attack or stroke.

Type of medicine
Statin (cholesterol-lowering medicine)
Also known as
Crestor
Comes as
tablets
How you get it
Prescription only

What it is used for

  • High cholesterol, including inherited high cholesterol
  • Preventing heart attacks and strokes in people at higher risk

Read our guides:

Off-label uses

Doctors sometimes prescribe a medicine for a condition it is not officially licensed for. This is called off-label use. It is legal and common when there is good evidence it helps, and your doctor should explain why they are suggesting it.

Rosuvastatin is not commonly used off-label.

How it works

Rosuvastatin blocks HMG-CoA reductase, an enzyme the liver uses to make cholesterol. The liver then removes more LDL ("bad") cholesterol from your blood.

Side effects

Like all medicines, Rosuvastatin can cause side effects, although not everyone gets them. Many are mild and ease after the first few weeks.

Common side effects

  • headache
  • muscle aches
  • stomach pain
  • feeling sick
  • constipation
  • feeling weak

Tell your doctor or pharmacist if these bother you or do not go away.

Serious side effects

These are rare. Call 111 or contact your doctor straight away if you get:

  • unexplained muscle pain, tenderness or weakness, especially with a high temperature or dark pee
  • yellowing of the skin or eyes
  • blood in your pee

Call 999 if you have signs of a serious allergic reaction, such as swelling of your lips, mouth, throat or tongue, or trouble breathing.

You can report any side effect to the Yellow Card scheme, run by the medicines regulator.

Stopping and withdrawal

Important safety information

  • People of Chinese or Japanese heritage usually start on a lower dose.
  • Indigestion remedies can reduce how well it is absorbed. Take them at least 2 hours apart.

Questions about your medicine?

A pharmacist can answer questions about your medicines for free, without an appointment. You can also ask your GP for a medication review. Check if you can get free prescriptions.

Official information

Last checked 5 October 2026. Tell us if something looks wrong.

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