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Are Statins Safe? Side Effects, Benefits, and Who Should Take Them

A comprehensive study published in The Lancet reveals that the vast majority of side effects commonly attributed to statins are not actually caused by the medications themselves. Researchers analyzed data from 123,940 individuals across 19 clinical trials comparing…

By Dr Natalie Singh - Health Editor Updated September 30, 2026

Are Statins Safe? Side Effects, Benefits, and Who Should Take Them

A comprehensive study published in The Lancet reveals that the vast majority of side effects commonly attributed to statins are not actually caused by the medications themselves. Researchers analyzed data from 123,940 individuals across 19 clinical trials comparing statins to a placebo over an average monitoring period of 4.5 years. The findings show no significant increased risk for almost all conditions listed on statin package leaflets, including depression, sleep problems, fatigue, and headaches.

Understanding Statin Benefits and Cholesterol Management

Statins are prescribed medications designed to lower cholesterol levels and protect arterial health. According to Sindy Jodar, senior cardiac nurse at the British Heart Foundation, these drugs specifically target low-density lipoprotein (LDL) cholesterol—commonly known as bad cholesterol—while also helping to reduce triglyceride levels. Lowering LDL levels in the bloodstream prevents plaque buildup and significantly reduces the risk of heart attacks and strokes. The UK National Health Service (NHS) lists five statin types available on prescription: atorvastatin (Lipitor), fluvastatin (Lescol), pravastatin (Lipostat), rosuvastatin (Crestor), and simvastatin (Zocor). Clinicians determine the specific prescription based on individual risk calculations and potential side effects, with atorvastatin serving as the most commonly prescribed option.

Patient Criteria for Statin Prescriptions

General practitioners typically prescribe statins to individuals with high cholesterol levels. However, prescriptions are also extended to patients whose cholesterol measures within a normal range if they exhibit additional risk factors. These factors include a strong family history of premature heart disease, diabetes, high blood pressure, smoking history, or being overweight. GPs utilize a comprehensive risk calculation incorporating a patient’s height, weight, blood pressure, cholesterol results, past medical history, and family history. If this calculation indicates a 10% or greater risk of developing cardiovascular disease, such as a heart attack or stroke, within the next 10 years, clinicians recommend starting a statin. Because age functions as a primary risk factor in cardiovascular disease development, older adults receive these prescriptions most frequently, though younger patients with extremely high cholesterol levels also qualify.

Medical Contraindications and Restrictions

While most adults tolerate statins well, the medication does not suit every patient. Atorvastatin is contraindicated for individuals with a history of allergic reactions to the medication or related drugs, existing liver or kidney problems, lung disease, or those who are pregnant, breastfeeding, or planning a pregnancy. Because statins operate by reducing LDL production in the liver, they can occasionally influence liver enzymes. Jodar notes that patients presenting with deranged liver enzymes may find statins an unsuitable treatment option due to potential complications with liver function.

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About the author: Dr Natalie Singh - Health Editor

Board‑certified internal‑medicine physician and MPH. Natalie authored peer‑reviewed studies on infectious disease and served as medical editor. “Dr. Natalie Singh delivers evidence‑based health news, medical breakthroughs, and expert wellness guidance.”