PRIOR CONCURRENT THERAPY: At least 8 weeks since prior systemic treatment with amphotericin B or itraconazole At least 2 weeks since prior systemic antifungal therapy for more than 96 hours at doses greater than 0.5 mg/kg/day for conventional or lipid formulations of amphotericin B or greater than 200 mg/day of itraconazole No concurrent drugs that are metabolized primarily by hepatic cytochrome P-450 enzymes or which induce or inhibit these enzymes, such as terfenadine, loratidine, astemizole, midazolam, triazolam, cisapride, rifampin, rifabutin, barbiturates, carbamazepine, coumarins, sulfonylureas, nivarapine, erythromycin, ritonavir, delaviridine, omeprazole, and phenytoin At least 2 weeks since prior rifampin, rifabutin, carbamazepine, or barbiturates for more than 3 days No concurrent investigational drugs other than cytotoxics, antiretroviral agents, or therapies for AIDS-related opportunistic infection No concurrent filgrastim (G-CSF) or sargramostim (GM-CSF) other than for treatment of granulocytopenia No concurrent white blood cell transfusions No concurrent systemic antifungal agents active against Aspergillus spp. (e.g., itraconazole, lipid formulations of amphotericin B, or flucytosine)