Polypharmacy and health related quality of life among older adults on antiretroviral therapy in a tertiary hospital in Tanzania: a hospital-based cross-sectional study.

Background: Human immunodeficiency virus (HIV) chronicity in the midst of old age multiplies the risk for chronic non communicable diseases. The old are predisposed to drug-drug interactions, overlapping toxicities and impairment of the quality of life (QoL) due to age-related physiological changes. We investigated polypharmacy, QoL and associated factors among older HIV-infected adults at Muhimbili National hospitals in Dar es Salaam Tanzania.