People who think they can't handle statin drugs because of side effects stop taking them just as often when they're on a fake pill as when they're on the real one — so the symptoms might not actually be caused by the drug.

What we've found so far suggests that people stop taking atorvastatin due to side effects about as often as those taking a placebo. Our analysis of the available research shows this pattern clearly in the data we’ve reviewed. The evidence we’ve examined indicates that when people believe they are sensitive to statin side effects, they are just as likely to stop taking the medication whether they’re on atorvastatin or a sugar pill [1]. This finding comes from studies where participants were unaware of whether they were receiving the actual drug or a placebo. The fact that discontinuation rates were similar across both groups suggests that the symptoms leading people to stop may not be directly caused by the drug itself [1]. We analyzed 82.0 studies or assertions that support this observation, and none that refute it [1]. This means the evidence we’ve reviewed leans toward the idea that the experience of side effects—and the decision to stop treatment—may be influenced by factors other than the pharmacological effect of atorvastatin. These could include expectations, awareness of being on medication, or other psychological or environmental factors. However, we don’t yet have enough information to say why people stop taking the drug or whether certain symptoms are directly linked to atorvastatin in specific individuals. Our current analysis only shows a pattern in discontinuation behavior that doesn’t align with a clear biological effect of the drug. Practical takeaway: If someone stops taking atorvastatin because of how they feel, it’s worth discussing with a doctor—because those symptoms might not be caused by the drug, and the benefits of staying on it could outweigh the perceived risks.