Safety and Effectiveness of Fluconazole Versus SCH 56592 to Treat Thrush in HIV-Positive Patients

Inclusion Criteria You may be eligible for this study if you: * Are at least 18 years old. * Are HIV-positive. * Have thrush (oropharyngeal candidiasis). * Agree to practice sexual abstinence or use effective barrier methods of birth control (e.g., condoms). * Are able to take study medication and return for clinic visits during the study. * Are expected to live for at least 2 months. Exclusion Criteria You will not be eligible for this study if you: * Have received protease inhibitors for the first time within 30 days prior to study entry. * Have received certain medications. * Have certain other types of fungal infections. * Have certain types of cancer. * Have received SCH 56592 within 3 months prior to study entry. * Are pregnant or breast-feeding. * Cannot take medications by mouth. * Are allergic to azole drugs. * Have certain medical conditions. * Have been in this study before.