Agifovir 300mg drug with the main ingredient is Tenofovir disoproxil fumarate belonging to the group of antiretroviral drugs, so it is often used to treat chronic hepatitis B and HIV type 1. Side effects of Agifovir drugs often occur when used as monotherapy for inflammation. Hepatitis B or combination of antiretroviral drugs in HIV treatment, users should be aware of abnormal symptoms after using the drug.