Comparative study of antiretroviral drug regimens and drug–drug interactions between younger and older HIV-infected patients at a tertiary care teaching hospital in South Korea

Background With the advent of combination antiretroviral therapy (ART), people living with HIV have lived to older age. So they have experienced age-related illnesses and have taken non-antiretroviral (ARV) medications to manage these illnesses. The aims of this study were to investigate the use patterns of ARV agents in HIV-positive patients by age and to evaluate potential or contraindicated drug–drug interactions (DDIs) between ARV and non-ARV.