Used primarily in the treatment and management of HIV infection as part of antiretroviral therapy. It is also prescribed for the treatment of chronic hepatitis B virus (HBV) infection. The compound functions as a prodrug, delivering tenofovir into cells where it is phosphorylated to its active form, which inhibits viral reverse transcriptase, thereby suppressing viral replication. Its oral bioavailability and effectiveness in reducing viral load make it a key component in combination therapies for long-term control of HIV and HBV.