Zerit (15mg capsule) is a prescription medication used to treat HIV infection. It belongs to a class of drugs called nucleoside reverse transcriptase inhibitors (NRTIs) and contains the active ingredient stavudine. Zerit works by inhibiting the replication of the HIV virus in the body, thereby reducing the viral load and slowing down the progression of the disease. The 15mg capsule form allows for convenient and precise dosing. However, it's important to note that this information is based on the knowledge available up until September 2021, and it's always best to consult a healthcare professional or refer to the latest prescribing information for specific details and recommendations.