Inclusion Criteria

Concurrent Medication:

Allowed:

• Chemoprophylaxis for P. carinii pneumonia, TB, and mucocutaneous candidiasis.
• Methadone maintenance.
• Hormonal contraceptives.

Patients must have:

• HIV-1 seropositivity.
• CD4 count 50 - 500 cells/mm3.
• Life expectancy of at least 24 weeks.
• Stable weight (+/- 2 kg) by 28 days prior to study entry (by history).

NOTE:

• At least 50 percent of patients must be p24 antigen positive (>= 50 pg/ml).

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms and conditions are excluded:

• Known or suspected hypersensitivity to benzodiazepines.
• Presence of any malignancy other than basal cell carcinoma or limited cutaneous Kaposi's sarcoma (defined as no more than five lesions with no mucosal involvement).
• Ongoing diarrhea, defined as more than 2 liquid stools per day.
• History, physical exam, or laboratory results consistent with a subclinical AIDS-defining opportunistic infection.
• Grade 2 or greater signs and symptoms of AIDS Dementia Complex.
• Evidence of clinically significant cardiac, respiratory, hepatic, gastrointestinal, endocrine, hematologic, psychiatric, neurologic, dermatologic, or allergic disease.

Concurrent Medication:

Excluded:

• Chronic suppressive therapy for CMV, MAI, toxoplasmosis, cryptococcosis, cryptosporidiosis, coccidioidomycosis, and histoplasmosis.
• ddC, ddI, AZT (except for control groups) or other experimental antiretrovirals or immunomodulating agents.
• Other medications excluded from the study.

Patients with the following prior conditions are excluded:

• History of serious adverse reactions to benzodiazepines.
• History of intolerance to AZT at 600 mg/day or less or ddI at 400 mg/day or less.
• History of unexplained fever, defined as a temperature of 38.5 deg C or greater with or without night sweats for more than 7 of the past 28 days.

Prior Medication:

Excluded:

• Benzodiazepines within 14 days prior to study entry.

Active drug or alcohol abuse that would interfere with study compliance.