The short answer is no. But I understand why so many people think they do — because until recently, I was one of them.
Like many people in my age group, I’ve had a long-running interest in statins. The epidemiological evidence is actually overwhelming: for most people with even a moderate risk of heart disease, the benefits of taking statins far outweigh the downsides. We now have over 20 years of high-quality research showing that these drugs are effective. They don’t just reduce LDL cholesterol; they also lower inflammation, which is why their benefits extend beyond heart disease to a range of conditions associated with inflammation and ageing.
Despite knowing this, I avoided taking statins for nearly a decade. I’d been flagged as “high risk” since my early 60s — mildly raised blood pressure, a strong family history, and a father who died of a heart attack at 57. I ticked all the boxes. But like many people, I wasn’t fully convinced, and I was particularly concerned about side effects. Muscle pain, cramps, weakness — these stories are everywhere.
So when I was advised about a year ago that I should really start statins, I did so with some trepidation. And, interestingly, about two weeks in, I started experiencing quite severe night cramps. I’d had cramps before, but these felt worse. Naturally, I assumed the statins were to blame. Muscle cramps are, after all, clearly listed on the patient information leaflet.
I stopped taking the statin, and the cramps continued. I restarted it, and the cramps were still there. At that point, I was genuinely confused. Was this a side effect, or was I simply noticing something I’d already been experiencing?
This question became particularly relevant when I read a major new meta-analysis published in The Lancet. The researchers examined randomised controlled trials of statins — crucially including studies with proper placebo groups, where participants didn’t know whether they were taking the statin or a dummy pill. Across these trials, statin labels list 66 possible side effects, ranging from muscle symptoms and liver changes to mood disturbances, sleep problems, tingling sensations, memory loss, and depression. It’s hardly surprising that many people stop taking them.
But when the data were analysed properly, something remarkable emerged. Of those 66 reported side effects, 62 disappeared. In other words, they occurred just as often in people taking the placebo as in those taking the statin. Only four side effects showed consistent evidence of being genuinely caused by the drug.
This tells us something important — and uncomfortable — about how powerful expectations can be. Reading long lists of adverse effects doesn’t just inform us; it can actively shape what we feel. This isn’t people “imagining” symptoms in a dismissive sense. The symptoms are real. But the cause isn’t the drug — it’s the expectation.
There are genuine side effects to be aware of. Rare liver enzyme changes, very uncommon muscle injury, or specific tissue reactions are real and should always be monitored. But the vast majority of commonly feared symptoms don’t stand up when tested rigorously.
The takeaway isn’t that we should ignore medical information or dismiss people’s experiences. It’s that we need to be far more careful about how we communicate risk. When we overwhelm people with poorly contextualised lists of potential harms, we may actually be doing more damage than good — particularly when the benefits of a treatment are so substantial.
Statins save lives. For people at increased cardiovascular risk, avoiding them because of misunderstood side effects may be one of the biggest missed opportunities in modern medicine. And sometimes, paradoxically, reading less and understanding more is the healthier choice.
There’s a term for this phenomenon. When an expectation leads to a negative effect, it’s called the nocebo. When it leads to a positive one, it’s the placebo. Both are extremely common, well-documented, and very real. They’re not about pretending or exaggerating symptoms — they’re about how powerfully the brain and body interact.
So my practical advice is this. Before you start a new medication, especially one with strong evidence behind it, I wouldn’t rush to read the patient information leaflet in detail. Much of it is outdated, poorly contextualised, and more likely to alarm than inform — particularly if you know you’re sensitive to these things. Instead, try the medication with an open mind, pay attention to how you actually feel, and stay in dialogue with your clinician. You may well find yourself in a better place for having done so.
Good luck.
Tim
