HIV infection from occupational and nonoccupational exposures can be prevented through risk assessment and management with antiretroviral drug therapy (ART). This study sought to examine the pattern of presentation and outcome of clients who were given postexposure prophylaxis (PEP) at the University College Hospital, Ibadan, Nigeria. A retrospective review of case notes of clients presenting for HIV PEP from January 2005 to December 2006 was carried out. A total of 48 clients with a mean age of 27.9 +/- 12.3 years underwent PEP during the period under review. Rape constituted 50% of reasons for PEP, while needle pricks and blood splash into mucous membranes constituted 25% each. Among those who received therapy, 10 (23.8%) could not complete drug therapy because of side effects. Although no client was HIV positive after the recommended 6 months of follow-up, 8 (16.7%) clients did not complete attendance to the clinic during the period.