Safety and Tolerability of MK0773 in Healthy Older Men (0773-004)

Inclusion Criteria: * Subject is in good general health * Subject agrees to avoid excess alcohol and strenuous physical activity during the study * Subject who is sexually active with partners of reproductive potential agrees to use two forms of appropriate contraception during the study Exclusion Criteria: * Subject has significant drug allergies * Subject has donated blood within the last 8 weeks or has taken an investigational drug in another clinical trial within the last 4 weeks * Subject is a regular user or past abuser of any illicit drug (including alcohol) * Subject drinks excessive amounts of caffeinated beverages * Subject has a history of cancer * Subject has a history of prostate or testicular surgery