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Your guide

Side effects are real for some people, and the fear of them is real for many more. Let's separate the two, kindly and with data.

Room 7 · The Myth Lab(a full-tour room)

Are statins safe? What about side effects?

About 3 minutes

Guess first

In blinded trials, how often did people report muscle aches on a dummy pill compared with a statin?

Experiment 1

The blinded trial

Picture 200 people taking one pill a day. Half get a statin, half a dummy pill, and nobody knows which. Watch who reports muscle aches.

A blinded trialNobody knows which bottle they gotReadyABottle ABBottle BOrange: reported muscle aches. Bar: total so far

Two bottles, one routine

Everyone takes one pill a day from their bottle. One bottle holds a statin, the other a look-alike dummy pill, and nobody knows which, not even their doctors. Watch who reports muscle aches.

An illustration of the pattern in blinded trials (CTT Collaboration, Lancet 2022), not exact counts.

Which bottle held the statin?

Experiment 2

Twelve sealed bottles

What if the people most sure a statin hurt them tested it themselves, without knowing what was in the bottle?

One person, 12 months, 12 sealed bottlesBars: how strong the aches felt that month (illustrative)123456789101112

Month by month, in sealed bottles

In the SAMSON trial, 60 people who had stopped statins because of side effects each got 12 sealed monthly bottles: 4 with a statin, 4 with a dummy pill, and 4 empty. Nobody knew which was which. They rated their symptoms as they went.

Bars are illustrative, shaped like SAMSON's average result (NEJM 2020).

Lab notes

What's real, and what people do about it

Tap a worry. Each one shows what the evidence says and the steps people commonly take with their clinician.

What people ask

Will a statin make my muscles hurt?

What's real

Aches, tiredness or cramps can happen, often in big muscles like thighs or shoulders. For some people they are caused by the statin, and they are worth taking seriously.

In blinded trials, most aches also happened on the dummy pill, so a statin is not always the cause.

Severe muscle pain or weakness, or dark urine, needs medical care right away.

What people do about it

  1. 1

    Tell your clinician

    Don't just push through or quietly stop. Note when the aches started and how strong they are.

  2. 2

    Pause and watch

    With your clinician's OK, a short break shows whether the aches fade. If they don't, something else may be the cause.

  3. 3

    Try again, differently

    • A different statin
    • A lower dose
    • Every other day
  4. 4

    Or a non-statin option

    • Ezetimibe
    • Bempedoic acid
    • PCSK9 shots or pill
    • Inclisiran

Reviews report that up to 70% of people labeled statin intolerant can take a statin again.

Compare the options in the Medicine Hall →

What people commonly do with their clinician, not advice for you. Don't stop or change a medicine without talking to your clinician first.

Make your guess to turn on the lights