Lipitor is a brand of atorvastatin, a statin used to lower cholesterol and reduce cardiovascular risk. Most people take it without difficulty. The effect people ask about most is muscle aching, and the useful skill is telling ordinary aches apart from the rare pattern that needs urgent attention.
See atorvastatin side effects for the generic medicine.
Common side effects during long-term use
- Muscle aches, stiffness or tenderness, typically in the large muscles of the thighs, shoulders or upper arms, on both sides. See atorvastatin and muscle pain.
- Headache
- Nausea, indigestion, constipation, diarrhoea or wind
- Joint pain
- Sleep disturbance or unusual dreams
Muscle symptoms often improve with a dose change, a switch to a different statin, or a change in dosing schedule, so they are worth raising rather than treating as a reason to stop. Stopping a statin without discussion removes cardiovascular protection you were prescribed it for. See statins and muscle weakness.
A small increase in blood sugar occurs in some people, and a small number develop type 2 diabetes who might not otherwise have done. For most people at raised cardiovascular risk this is outweighed by the benefit, but it is a reasonable thing to discuss.
Serious or persistent symptoms to discuss with a clinician
Get urgent help for the combination of severe muscle pain or weakness with dark, tea-coloured urine, particularly with fever or feeling generally unwell. This pattern can indicate rhabdomyolysis, a rare breakdown of muscle tissue that can damage the kidneys. It is uncommon, but it is the reason muscle symptoms are taken seriously.
What separates this from ordinary aching is severity, weakness rather than just soreness, and the urine change.
Also contact a doctor for: yellowing of the eyes or skin, dark urine with pale stools, or persistent nausea and upper abdominal pain, which can indicate liver effects. See statins and the liver. Report new memory or confusion problems, and any rash that blisters or peels.
Dose changes, missed doses and monitoring tests
Statins are usually monitored with periodic cholesterol testing and liver blood tests, with a muscle enzyme test added if muscle symptoms occur.
If muscle symptoms appear, tell your prescriber before stopping. Common approaches include a lower dose, a different statin, or a temporary pause to see whether symptoms actually resolve, which often clarifies whether the statin is responsible at all.
Statins should be stopped if you become pregnant or are planning pregnancy. Discuss this in advance if it may apply.
Interactions with OTC medicines and supplements
- Grapefruit and grapefruit juice. These raise atorvastatin levels and increase muscle side-effect risk. Ask your pharmacist how much, if any, is acceptable.
- Some antibiotics and antifungals. Certain ones markedly raise statin levels, and a short course may warrant a temporary pause. Always mention your statin when prescribed either.
- Other cholesterol medicines. Combinations can add muscle risk.
- St John’s Wort. Can reduce the effect. See St John’s Wort interactions.
- Alcohol. Heavy use adds liver strain.
What to ask your doctor before changing treatment
- Are my muscle aches likely to be the statin, and how would we find out?
- Could a lower dose or a different statin suit me better?
- When were my liver tests last done?
- Do I need to avoid grapefruit entirely?
- What is my actual cardiovascular risk, and what does this medicine change about it?
Related chronic medication guides
- Chronic medication side effects
- Managing chronic medication side effects
- Should I stop my chronic medication
- Over-the-counter medicines with chronic medication
- Report a side effect in South Africa
See also statin side effects, cholesterol medication side effects and Aspavor, another South African atorvastatin brand.
Medical Disclaimer: This content is for informational and educational purposes only and does not constitute medical diagnosis, prescription, or professional advice. Always read the patient information leaflet and consult a qualified doctor or pharmacist regarding any medicine or health concern.