Phase II Study of the Safety and Surrogate Marker Efficacy of Butyldeoxynojirimycin (SC-48334) and AZT in Symptomatic HIV-1 Infected Patients With 200 - 500 CD4+ Cells/mm3. (NOTE: Asymptomatic HIV-1 Infected Patients Also Eligible)

To assess the dose-related antiviral effects of SC-48334 and zidovudine (AZT) administered in combination or individually in HIV-1 positive patients with 200 - 500 CD4+ cells/mm3. To determine the safety of escalating doses of SC-48334 when administered in combination with any of three doses of AZT to symptomatic HIV-1 positive patients with 200 - 500 CD4+ cells/mm3, and to assess the pharmacokinetics of the two drugs, given separately and in combination.