Heart Health

Statin side effects

On a statin, or is one indicated? Yes

Recommendationstatin-tolerabilityFewer than 5 people have reached this rule so far

What to do about muscle aches before stopping, and what the evidence says about them

Clinical review

All reviewers

No clinician has signed off this rule yet. It reflects our reading of the guidelines cited below, which has not been independently checked.

What someone who reaches this rule is told

Word for word, as generated for the example person below. Figures in the text are theirs.

  • Practical guidance

    If a statin causes muscle aches, there's a whole ladder to try before giving up on it — and it's worth climbing.

    In order: stop briefly to confirm the symptoms actually track with the drug; recheck on a lower dose or a different statin (rosuvastatin and pravastatin are less likely to cause muscle symptoms); try every-other-day dosing; then add or switch to ezetimibe or bempedoic acid. Worth knowing: in SAMSON, patients who were certain statins caused their symptoms took statin, placebo, and nothing in blinded rotation — about 90% of the symptom burden occurred just as much on placebo. That doesn't mean the pain isn't real, but it does mean most people who think they can't take any statin eventually can.

    Outcome-provenTested in randomised trials measuring heart attacks, strokes, or death, not a stand-in for them.· checked 2026-09-12

    SAMSON trial (NEJM 2020) — statin side effects, blinded n-of-1 · Practical guidance

An example person who reaches it

Borderline risk + high Lp(a)” — an illustrative profile, not a real user.

58-year-old manBP 132/82LDL 140Lp(a) 78 mg/dL10-yr PREVENT-ASCVD 4.9%

Their path through prevention essentials

  1. Known cardiovascular disease?No
  2. On a statin, or is one indicated?Yes ← this rule
  3. Urine albumin (UACR)?Not measured, with diabetes, prediabetes, eGFR below 60, BP medication, or BP 130/80 or above

Sources

Cited by the recommendations above.

What we are least sure of here

  • Q10Is 22% per mmol/L, applied to 10-year risk, the right frame for the statin benefit arithmetic?

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Runs in lib/engine/preventionEssentials.ts as statin-tolerability.