Lipitor side effects may include headache, upset stomach or flatulence, or a rash. There can also be far more serious Lipitor side effects.

Lipitor side effects also include rare cases of muscle problems and liver problems. Contact your doctor immediately if you experience unexplained muscle pain, tenderness, or weakness, especially if accompanied by a fever or flu-like symptoms or yellowing of the skin or eyes, abdominal pain, unexplained fatigue, dark colored urine or pale colored stools. These Lipitor side effects may be early symptoms of muscle or liver problems.

If you experience any of the following serious Lipitor side effects, stop taking Lipitor and seek emergency medical attention or contact your doctor immediately: an allergic reaction (difficulty breathing, closing of the throat, swelling of the lips, tongue, face, or hives), decreased urine or rust-colored urine, or blurred vision.

Other, less serious Lipitor side effects may be more likely to occur. Continue to take Lipitor and talk to your doctor if you experience headache, upset stomach or flatulence, or a rash.

Lipitor is an HMG CoA reductase inhibitor used to treat high cholesterol levels and high triglycerides.

Lipitor side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Remember that all medications/drugs can cause gastrointestinal symptoms and can be toxic to your liver.