The purpose of this study is to compare the safety and effectiveness of two anti-HIV drug combinations when given to HIV-infected patients who have never been treated with anti-HIV drugs. One drug combination is stavudine (d4T) plus didanosine (ddI) plus Crixivan. The other combination is Retrovir (AZT) plus Epivir (3TC) plus Crixivan.

100 patients will be randomized to receive Zerit (Stavudine) + Videx (Didanosine) + Crixivan (Indinavir) and 100 patients will be randomized to receive Retrovir (Zidovudine) + Epivir (Lamivudine) + Crixivan (Indinavir).

Patients will be treated for 48 weeks.

Inclusion Criteria

Patients must have:

• Documented HIV infection.
• CD4 cell count of 200 - 700 cells/mm3.

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms or conditions are excluded:

AIDS defining condition within 1 month of study entry.

Prior Medication:

Excluded:

Patients with any history of antiretroviral therapy treatment.