Exclusion Criteria: - Patients with a history of any primary blood disease - having any clinically significant disease or malfunction of the lungs, heart, hormones, neurological, gastrointestinal, reproductive or urinary systems, which is not caused by the AIDS infection - having uncontrolled high blood pressure - having anemia caused by conditions other than AIDS (for example, vitamin deficiency or bleeding from the gastrointestinal tract) - having a serum ferritin value <30 ng/mL or an iron/total iron-binding capacity (Fe/TIBC) ratio less than 15%.