Women and girls are disproportionately affected by the HIV/AIDS epidemic, comprising more than half of the estimated 37.9 million people living with the disease. Moreover, according to United Nations AIDS, some regions of the world, like sub-Saharan Africa, have an even higher burden, with women and girls constituting over 57% of the affected population, compared to 52% worldwide. With an unwavering increase of the disease along with antiretroviral treatments that can only help control the virus, not kill it, preventing HIV infection is essential. Researchers have been investigating for many years the use of intravaginal rings (IVRs) as devices for the delivery of agents to protect against the sexual transmission of HIV and other diseases, as well as to prevent unwanted pregnancies.