Rosuvastatin on the NHS: Prescribing, Monitoring and What to Expect

Rosuvastatin lowers LDL cholesterol. It also reduces your risk of heart and blood vessel problems. The NHS uses it in two main ways:

Primary prevention:

• This is for people with a 10-year cardiovascular risk of 10% or more. The QRISK3 tool calculates this risk.
• NICE Clinical Guideline 181 suggests atorvastatin 20 mg as the first statin. However, rosuvastatin may be used if atorvastatin is not tolerated. It can also be used if a stronger LDL-lowering effect is needed.

Secondary prevention:

• This is for people who have already had a heart attack, stroke, TIA, or peripheral arterial disease.
• NICE recommends high-intensity statin therapy. Rosuvastatin 10 mg to 20 mg is a high-intensity option.

Familial hypercholesterolaemia:

• Rosuvastatin is often used for this condition. It is very effective at lowering LDL.
• A maximum dose of 40 mg is sometimes needed. This dose carries a higher risk of side effects. It also needs careful monitoring.

Why choose rosuvastatin over atorvastatin?

• Some patients cannot tolerate atorvastatin. Muscle-related side effects are a common reason.
• Rosuvastatin may lower LDL more effectively for some patients at similar doses.
• Rosuvastatin has fewer drug interactions than atorvastatin. This is because CYP3A4 does not mainly metabolise it.

Regular monitoring is key when taking statins. Your GP practice will usually arrange the following tests:

Before starting rosuvastatin:

• A full lipid profile. This checks total cholesterol, LDL, HDL, and triglycerides.
• Liver function tests (LFTs).
• Renal (kidney) function tests.
• Thyroid function. An underactive thyroid increases the risk of muscle problems from statins.
• HbA1c or fasting glucose. This checks your risk of diabetes.
• Your 10-year cardiovascular risk. The QRISK3 tool calculates this.

3 months after starting:

• A repeat lipid profile. This checks how well the medicine is working.
• Repeat LFTs.
• Your doctor will check how you are taking the medicine. They will also ask about any side effects.
• NICE aims for a greater than 40% drop in non-HDL cholesterol from your first reading.

Ongoing monitoring:

• You will have an annual lipid profile and cardiovascular risk review.
• Routine LFTs are not usually needed unless there are concerns.
• CK levels are only checked if you develop muscle symptoms. Routine CK monitoring is not advised.

What to do between appointments:

• Take rosuvastatin exactly as prescribed. Take it at the same time each day.
• Report any new symptoms. This is especially important for unexplained muscle pain, dark urine, or jaundice.
• Attend your annual review. Do this even if you feel well.

NICE Clinical Guideline 181 covers statin prescribing. It is called 'Cardiovascular disease: risk assessment and reduction, including lipid modification'. This guideline applies in England and Wales.

Treatment targets:

• NICE recommends a greater than 40% reduction in non-HDL cholesterol. This should happen within 3 months of starting a high-intensity statin.
• If this target is not met, your prescriber will discuss adherence and lifestyle. They may also consider increasing the dose.

Statin intensity:

• High-intensity: atorvastatin 20 to 80 mg, rosuvastatin 10 to 40 mg.
• Medium-intensity: simvastatin 20 to 40 mg, pravastatin 40 mg.
• Rosuvastatin 5 mg is a medium-intensity statin.

Lifestyle alongside medication:

• NICE stresses that statins work best with lifestyle changes. They are not a replacement for them.
• Dietary advice: Eat more fruit, vegetables, and wholegrains. Reduce saturated fat.
• Regular physical activity: Aim for at least 150 minutes of moderate exercise each week.
• Smoking cessation: Stop smoking.
• Alcohol moderation: Drink alcohol in moderation.

When to refer:

• If you cannot tolerate at least two different statins.
• If familial hypercholesterolaemia is suspected. This means very high LDL and a family history of early heart disease.
• If your cholesterol does not improve enough. This applies even with a high-intensity statin at the maximum tolerated dose.

A few simple habits will help you get the most from your rosuvastatin.

When to take it:

• You can take rosuvastatin at any time of day. You can take it with or without food.
• Simvastatin should be taken at night. Rosuvastatin has a long half-life, so timing is less important.
• Choose a time that suits your routine and stick to it. Many people take it with their morning or evening medicines.

Missed doses:

• If you miss a dose, take it as soon as you remember. Do not take it if it is almost time for your next dose.
• Never take a double dose to make up for a missed one.

Interactions to be aware of:

• Rosuvastatin has fewer drug interactions than some other statins. Important interactions include ciclosporin, warfarin, fibrates, and some HIV medicines.
• Antacids with aluminium and magnesium hydroxide can reduce rosuvastatin absorption. Take the antacid at least 2 hours after rosuvastatin.
• Grapefruit juice does not significantly interact with rosuvastatin. This is different from atorvastatin and simvastatin.

Lifestyle support:

• A heart-healthy diet boosts rosuvastatin's cholesterol-lowering effect.
• Regular exercise can raise HDL cholesterol. It also improves overall heart health.
• If you smoke, stopping is the best step you can take to lower your heart risk.

For more on side effects and how to manage them, see the rosuvastatin side effects page.

Rosuvastatin is a generic medicine. It is relatively cheap for the NHS to provide.

NHS prescription costs:

• In England, the standard prescription charge applies. This is about 9.90 GBP per item in 2026.
• NHS prescriptions are free in Scotland, Wales, and Northern Ireland.
• Many statin users in England get free prescriptions. This includes those over 60, those with diabetes, or those on certain benefits.

Supply:

• Rosuvastatin is widely available. You can get it at all community pharmacies.
• It comes as tablets in strengths of 5 mg, 10 mg, 20 mg, and 40 mg.
• Generic rosuvastatin is usually dispensed. Crestor was the original brand. A specific brand is only given if requested.

Repeat prescriptions:

• Once your dose is stable, rosuvastatin is usually added to your repeat prescription list.
• Most practices give monthly or 2-monthly supplies.
• You can order repeats through your GP practice, the NHS App, or electronic prescription services.

Statins are among the most prescribed medicines in the UK. The NHS spends little per patient. This makes them a very cost-effective way to prevent illness.