- Ineligibility for DHPG therapy because of baseline neutropenia (absolute neutrophil count < 500 cells/mm3) or thrombocytopenia (platelets < 25000 platelets/mm3) documented on = or > 2 occasions at least 7 days apart. Baseline myelosuppression should not be the result of ongoing therapy with either prescription drugs, including AZT, or over-the-counter medications.