Commonly reported side effects of atorvastatin include: hemorrhagic stroke, arthralgia, diarrhea, and nasopharyngitis. Other side effects include: urinary tract infection, insomnia, limb pain, muscle spasm, musculoskeletal pain, myalgia, and nausea. Continue reading for a comprehensive list of adverse effects. Applies to atorvastatin : oral tablet . Source: https://www.drugs.com/sfx/atorvastatin-side-effects.html Abdominal cramping or pain - Statin Side Effects: https://www.webmd.com/cholesterol-management/side-effects-of-statin-drugs