Atorvastatin is widely used and generally well tolerated, but side effects can occur. Some are subtle and easy to overlook.
15 possible side effects to know
- Muscle aches or soreness
- Muscle weakness or unusual fatigue
- Joint or back pain
- Headache
- Nausea or stomach discomfort
- Diarrhea or constipation
- Gas or bloating
- Sleep problems or vivid dreams
- Dizziness
- Increased blood sugar or, in some people, a higher risk of diabetes
- Mild increases in liver enzymes
- Memory or concentration problems — reported by some patients, although the relationship with statins is not always clear
- Skin rash or itching
- Changes in appetite
- Rarely, severe muscle injury (rhabdomyolysis), which can cause marked muscle pain or weakness and dark, cola-colored urine
Don’t stop atorvastatin on your own because of suspected side effects—the cardiovascular benefits can be substantial. Contact your clinician if symptoms are persistent or troublesome; they can determine whether atorvastatin is responsible and whether a dose adjustment or different statin is appropriate.
Seek urgent medical attention for severe or rapidly worsening muscle pain/weakness, especially with dark urine, or symptoms suggesting a serious allergic reaction.
