Answer
Oct 08, 2026 - 10:37 AM
Tenofovir and tenofovir alafenamide are both antiviral medications used to treat HIV and hepatitis B, but they are different forms of the drug. Tenofovir alafenamide (TAF) is a newer version that delivers the active drug more efficiently to cells, allowing for a lower dose and causing fewer side effects, especially on the kidneys and bones, compared to the older form, tenofovir disoproxil fumarate (TDF).
