Adjunct to diet to reduce elevated total cholesterol, LDL cholesterol (LDL-C), apolipoprotein B & triglyceride levels, & to increase HDL cholesterol in patients w/ primary hypercholesterolemia (heterozygous familial & non-familial) & mixed dyslipidemia; & for the treatment of patients w/ elevated serum triglyceride levels. Primary dysbetalipoproteinemia in patients who do not respond adequately to diet. Reduces total cholesterol & LDL-C in patients w/ homozygous familial hypercholesterolemia. Adjunct to other lipid-lowering treatments, or if such treatments are unavailable. Reduces risk of MI, revascularization procedures, & angina in adult patients w/o clinically evident CHD, but w/ multiple risk factors.