Study: Statin Side Effect Risks May Be Overblown

Research review finds most side effects listed on statin drug packaging are not actually caused by the cholesterol-lowering medications.

Feb. 6, 2026 at 4:47pm

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A new research review has found that the majority of side effects listed on statin medication packaging are not actually caused by the cholesterol-lowering drugs. The analysis of data from over 150,000 participants in large clinical trials showed a similar frequency of side effect reports between those taking statins and those taking placebos, suggesting many of the symptoms people experience are not due to the statins themselves.

Why it matters

This research could help address misconceptions about statin side effects that have led many people who could benefit from the drugs to avoid taking them out of fear. Statins are an important medication for reducing the risk of heart attack and stroke, which remain leading causes of death and disability worldwide.

The details

The review found no excess risk from statin use for side effects like depression, sleep disturbance, erectile dysfunction, weight gain, nausea, fatigue, and headache. The only side effect with a small increase (around 1%) was muscle pain, largely occurring in the first year of treatment. There was also a 0.1% increased risk of abnormal liver blood tests, but no increase in actual liver disease. Researchers note the findings are limited by the duration of the clinical trials studied, which were up to 7 years, and that longer-term side effects are still possible.

  • The research review was published on February 6, 2026.

The players

Omar K. Siddiqi, MD

An assistant professor of cardiovascular medicine and director of the Cardiovascular Medicine Fellowship Program at Boston Medical Center in Massachusetts.

Christina Reith, PhD

The lead study author and an associate professor at the University of Oxford's Oxford Population Health in England.

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What they’re saying

“I think this underscores what most cardiologists and physicians in general have known for a long time — that statins are incredibly safe.”

— Omar K. Siddiqi, MD, Assistant Professor of Cardiovascular Medicine (Boston Medical Center)

“In this latest work, we found no significant excess risk with statins for almost all the conditions listed in package leaflets as potential side effects.”

— Christina Reith, PhD, Associate Professor (University of Oxford)

What’s next

Researchers hope the findings will prompt a review of statin drug packaging and other health information to enable doctors and patients to make more informed decisions about the use of these potentially lifesaving medications.

The takeaway

This research challenges the widespread perception that statins carry a high risk of side effects, which has led many people to avoid taking this important cholesterol-lowering medication. The findings suggest the benefits of statins in reducing heart attack and stroke risk likely outweigh the minimal side effect risks for most patients.