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Statin — HMG-CoA Reductase Inhibitor Pregnancy: Contraindicated during pregnancy and breast-feeding, and in women of child-bearing potential not using appropriate contraceptive measures. Suspend treatment for the duration of pregnancy or until it has been determined that the woman is not pregnant (UK SPC §4.3/§4.6)

Atorvastatin

Brand names: Lipitor

Atorvastatin is an HMG-CoA reductase inhibitor (statin) used for primary and secondary cardiovascular prevention by lowering LDL cholesterol; this page concerns its use in older adults.

Auto-extracted from the source labelling — not yet independently clinician-verified. These values were distilled from the UK SPC (or the US label where noted) but have not had a clinician sign-off. Confirm against the current SmPC before prescribing.

Adult dose

Dose: 10 mg once a day (usual starting dose); dose individualised according to baseline LDL-C, goal of therapy and patient response
Route: Oral
Frequency: Once a day, at any time of day, with or without food
Max: 80 mg once a day
UK SPC: Atorvastatin 10 mg film-coated tablets. ELDERLY (this page's focus): efficacy and safety in patients older than 70 using recommended doses are similar to those seen in the general population - no separate elderly dose is specified. In elderly patients (age over 70 years) the necessity of measuring creatine kinase before starting statin treatment should be considered (§4.4, pre-disposing factors for rhabdomyolysis). The patient should be placed on a standard cholesterol-lowering diet before and during treatment. Adjust dose at intervals of 4 weeks or more. Primary hypercholesterolaemia and combined (mixed) hyperlipidaemia: majority of patients controlled on 10 mg once a day; therapeutic response evident within 2 weeks and maximum response usually within 4 weeks. Heterozygous familial hypercholesterolaemia: start 10 mg daily, individualise and adjust every 4 weeks to 40 mg daily, thereafter either increase to a maximum of 80 mg daily or combine a bile acid sequestrant with 40 mg once daily. Homozygous familial hypercholesterolaemia: 10 to 80 mg daily, as an adjunct to other lipid-lowering treatments (e.g. LDL apheresis). Prevention of cardiovascular disease: dose in the primary prevention trials was 10 mg/day; higher doses may be necessary to attain LDL-cholesterol levels per current guidelines. Hepatic impairment: use with caution; contraindicated in active liver disease. SPARCL post-hoc analysis: for patients with prior haemorrhagic stroke or lacunar infarct, the balance of risks and benefits of atorvastatin 80 mg is uncertain. Paediatric: in heterozygous familial hypercholesterolaemia aged 10 years and above the recommended starting dose is 10 mg per day, which may be increased to 80 mg daily according to response and tolerability, with adjustments at intervals of 4 weeks or more; not indicated below 10 years of age. Paediatric use should only be carried out by physicians experienced in paediatric hyperlipidaemia.

Dose adjustments

Renal

No adjustment of dose is required in renal impairment (UK SPC §4.2); note that renal impairment is a situation in which creatine kinase should be measured before starting treatment (§4.4)

Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.

Contraindications

  • Hypersensitivity to the active substance or to any of the excipients
  • Active liver disease, or unexplained persistent elevations of serum transaminases exceeding 3 times the upper limit of normal
  • Pregnancy, breast-feeding, and women of child-bearing potential not using appropriate contraceptive measures
  • Treatment with the hepatitis C antivirals glecaprevir/pibrentasvir

Side effects

  • Nasopharyngitis, pharyngolaryngeal pain, epistaxis (common)
  • Myalgia, arthralgia, pain in extremity, muscle spasms, joint swelling, back pain (common); myopathy, myositis and rhabdomyolysis (rare); immune-mediated necrotising myopathy (frequency not known)
  • Constipation, flatulence, dyspepsia, nausea, diarrhoea (common)
  • Headache (common); dizziness, paraesthesia, hypoesthesia, dysgeusia, amnesia (uncommon)
  • Liver function test abnormal and blood creatine kinase increased (common); hepatitis (uncommon), cholestasis (rare), hepatic failure (very rare)
  • Hyperglycaemia and allergic reactions (common); anaphylaxis (very rare); myasthenia gravis / ocular myasthenia (frequency not known)

Interactions

  • Glecaprevir/pibrentasvir - concomitant use is contraindicated (UK SPC §4.3)
  • Elbasvir/grazoprevir, or letermovir for cytomegalovirus prophylaxis - do not exceed atorvastatin 20 mg/day (UK SPC §4.2)
  • Letermovir co-administered with ciclosporin - use of atorvastatin is not recommended (UK SPC §4.2)
  • US labelling: ciclosporin or gemfibrozil significantly increase atorvastatin plasma levels and the risk of myopathy/rhabdomyolysis; atorvastatin is a substrate of CYP3A4 and of transporters (OATP1B1/1B3, P-gp, BCRP), so CYP3A4 and transporter inhibitors (and grapefruit juice) increase exposure
  • US labelling: rifampicin may reduce atorvastatin plasma concentrations (administer simultaneously); atorvastatin may increase digoxin plasma levels and levels of norethindrone/ethinyl estradiol from oral contraceptives

Clinical monograph

How it works

It competitively inhibits HMG-CoA reductase, the rate-limiting enzyme in hepatic cholesterol synthesis, upregulating LDL receptors and lowering circulating LDL cholesterol.

Prescribing in practice

  • In older patients, who often have comorbidity, polypharmacy and reduced muscle mass, watch closely for muscle symptoms and myopathy, and weigh predisposing factors before high-intensity dosing.
  • Avoid concurrent strong CYP3A4 inhibitors and limit certain interacting drugs that raise statin exposure and rhabdomyolysis risk.
  • Review for clinically significant transaminase rise and, where relevant, an increased risk of new-onset diabetes.

Monitoring

Check baseline lipids, liver enzymes and (where indicated) creatine kinase, with a lipid response check after starting and review of any muscle symptoms.

Counselling the patient

  • Report unexplained muscle pain, tenderness or weakness promptly.
  • Avoid grapefruit juice and tell clinicians about any new medicines.
  • Continue long term, as benefit comes from sustained cholesterol lowering.

Evidence & guidelines

Cardiovascular benefit of statins extends to older adults in Cholesterol Treatment Trialists' meta-analyses and underpins NICE lipid-modification guidance.

Reference: NICE NG238 (Cardiovascular Disease); AGS Beers Criteria 2023; STOPP/START v3; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.