Statins are recommended and used as first-line treatment to prevent cardiovascular disease, but high rates of adverse events and subsequent discontinuation can prevent effective treatment in some patients. We aimed to describe the intensity, nature and frequency of adverse effects caused by statins and other lipid-lowering drugs, and to assess their association with clinical predictors and treatment strategies. This is a retrospective study of 121 consecutive unselected patients followed at a specialized lipid referral clinic in Lausanne University Hospital, Switzerland, in 2018. Adverse effects were reported by 58% of patients, causing musculoskeletal (72%), neurologic (40%), gastrointestinal (25%) and other (25%) symptoms. Gastrointestinal symptoms affected 35% of women, but only 12% of men (p=0.06). Statins caused more adverse effects than other drugs, with atorvastatin (63%) and simvastatin (64%) achieving the lowest rates, pravastatin (87%) and fluvastatin (100%) the highest. Fenofibrate was associated with significantly less frequent adverse effects than statins (p=0.006). Either adapting, or terminating the treatment, led to 86% and 88% lower intensity of symptoms, respectively. While the predominance of musculoskeletal symptoms caused by lipid-lowering drugs is known, symptoms affecting other organ systems should not be ignored. Statins were the lipid-lowering drug class with the highest rates of adverse effects. To maintain compliance and cardiovascular prevention, treatment strategies such as a change of dosage, frequency of administration, daily timing, or switching active substance can contribute to better tolerance of statin treatment. Further investigation is needed to establish specific treatment strategies for individual patient profiles.
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