Monotherapy or in combination w/ an HMG-CoA reductase inhibitor (statin) as an adjunct to diet for reduction of elevated total-C, LDL-C & Apo B in patients w/ primary hypercholesterolemia. In combination w/ fenofibrate as an adjunct to diet for reduction of elevated total-C, LDL-C, Apo B & non-HDL-C in patients w/ mixed hyperlipidemia. In combination w/ atorvastatin or simvastatin for reduction of elevated total-C & LDL-C in patients w/ HoFH as an adjunct to other lipid-lowering treatments (eg, LDL apheresis) or if such treatments are unavailable. Adjunctive therapy to diet for reduction of elevated sitosterol & campesterol levels in patients w/ homozygous familial sitosterolemia.