A Study of Isoprinosine in Patients With Severe AIDS

To evaluate the effect of Isoprinosine in patients diagnosed as having AIDS relative to: Laboratory (immunologic defects): * Comparison of total helper and suppressor T-cell numbers among the groups. * Comparison of changes in natural killer cell activity. * Comparison of other laboratory findings among the groups. Clinical changes: * Comparison of the frequency of opportunistic infections among the groups. * Comparison of the frequency of the development of AIDS-related malignancies. * Comparison of other clinical manifestations relative to severity and time of onset.