NHS-sourced information. Always read the patient information leaflet (PIL) and speak to your pharmacist or GP before starting, stopping or changing this medication.

Home Medications Atorvastatin
💊 Medication Guide Heart & Circulation

Atorvastatin

What is Atorvastatin?

Atorvastatin belongs to a group of medicines called statins. It is used to lower cholesterol levels in the blood and to reduce the risk of heart disease, heart attack, and stroke. It is one of the most widely prescribed medicines in the UK.

How It Works

Atorvastatin blocks an enzyme (HMG-CoA reductase) in the liver that is needed to make cholesterol. This reduces the amount of LDL (“bad”) cholesterol in the blood and increases HDL (“good”) cholesterol.

Who Should Take It

Your GP may prescribe atorvastatin if you have:

  • High cholesterol
  • Heart disease or have had a heart attack or stroke
  • Diabetes
  • A 10-year cardiovascular risk of 10% or more (assessed using a QRISK calculator)

How to Take It

Atorvastatin is usually taken once a day at night. You can take it at any time of day, with or without food, but try to take it at the same time each day.

Side Effects

  • Headache
  • Nausea, indigestion or constipation
  • Muscle aches and pains (myalgia) — tell your GP if you have unexplained muscle pain, as rarely it can cause a more serious muscle condition (myopathy)
  • Raised liver enzymes (usually returns to normal)

Important Precautions

  • Avoid grapefruit juice as it can increase the level of atorvastatin in your blood
  • Tell your GP if you are pregnant or breastfeeding (statins are not recommended)
  • Some medicines interact with atorvastatin — always tell your pharmacist you take it
Key Facts
Used For
Heart & Circulation
⚠ About Side Effects

All medications can cause side effects, though not everyone gets them. The list below shows the most commonly reported effects. Contact your GP or pharmacist if you are concerned.

Common (may affect more than 1 in 10 people)
Full side effect information will be added shortly. Please refer to the Patient Information Leaflet (PIL) enclosed with your medication.
Less Common (may affect up to 1 in 10 people)
Full side effect information will be added shortly. Please refer to the Patient Information Leaflet (PIL) enclosed with your medication.
Rare (may affect up to 1 in 100 people)
Full side effect information will be added shortly. Please refer to the Patient Information Leaflet (PIL) enclosed with your medication.
Seek immediate medical attention if you experience signs of a serious allergic reaction: swelling of the face, lips, throat, or difficulty breathing.
🔗 Drug Interactions

Always tell your doctor and pharmacist about all medicines you take, including vitamins, supplements, and over-the-counter products. Some interactions can increase side effects or reduce how well a medicine works.

Other medicines: Detailed interaction information for this medication is being prepared. Ask your pharmacist for a medicines review.
Alcohol: Check with your pharmacist whether alcohol is safe to consume with this medication.
Food & drink: Some medications are affected by grapefruit juice or should be taken with food. Check your PIL or ask your pharmacist.
Take the missed dose as soon as you remember. However, if it is nearly time for your next dose, skip the missed dose. Never take a double dose. Check your PIL or ask your pharmacist.
Do not stop taking your medication without speaking to your GP or pharmacist first. Some medications need to be reduced gradually to avoid withdrawal effects or a return of symptoms.
The time varies by medication. Some medicines work within hours; others (such as antidepressants) can take several weeks. Your doctor or pharmacist can advise on what to expect.
You must discuss this with your GP or midwife. Many medications require special consideration during pregnancy or breastfeeding.
Contact your pharmacist or GP. Many side effects are mild and temporary, but your doctor may be able to adjust your dose or switch you to an alternative.
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