Laropiprant/Simvastatin/Nicotinic Acid

This study is being done to find out if tablets containing extended release (ER) niacin, laropiprant, and simvastatin (ERN/LRPT/SIM) are as effective as tablets containing ER niacin and laropiprant taken with simvastatin tablets (ERN/LRPT + SIM) for lowering high cholesterol and high lipid levels in the blood. The primary hypothesis is that ERN/LRPT/SIM 2 g/40 mg is equivalent to ERN/LRPT 2 g co-administered with simvastatin 40 mg in reducing low-density lipoprotein cholesterol (LDL-C).

This study will evaluate:
the bioequivalence of simvastatin and simvastatin acid following dose of simvastatin (ZOCOR™) given together with one tablet of MK0524A or as a component of the triple combination tablet MK0524B.
the bioequivalence of laropiprant and ER niacin when administered as the triple combination tablet MK0524B or as the double combination tablet MK0524A given together with simvastatin.