Patients who are hypersensitive to any component of Atorvastatin, who have active liver disease or unexplained persistent elevations of serum transaminases exceeding 3 times the upper limit of normal, who are pregnant, who are breastfeeding, or in women of childbearing potential who are not using adequate contraceptive measures. Atorvastatin should be administered to women of childbearing age only when such patients are highly unlikely to conceive and have been informed of the potential hazards to the fetus.