Tavin Tablet is used in the treatment of chronic hepatitis B virus (HBV) infection. It is also used to treat HIV infection in combination with other anti-HIV medicines. It prevents the multiplication of viruses in human cells. This stops the virus from producing new viruses and clears up your infection.Tavin Tablet is not a cure for HIV/AIDS and only helps to decrease the amount of HIV in your body. This helps to lower your risk of getting HIV-related complications and improves your lifespan. It may also be used to prevent HIV infection in some people at high risk. This medicine may be taken with or without food. It is used in combination with other anti-HIV medicines. Taking these medicines regularly at the right time greatly increases their effectiveness and reduces the chances of HIV becoming resistant to them. It is important not to miss doses and to keep taking them until your doctor tells you it is safe to stop.Common side effects of this medicine include nausea, vomiting, diarrhea, flatulence, trouble sleeping, headache, and rash. These are usually not serious but inform your doctor if they bother you or will not go away. It can also increase the risk of bone loss (osteoporosis) if you take it for a long time. Exercise regularly and take calcium and vitamin D supplements as suggested by your doctor. Some people may put on weight while taking medicines to treat HIV/AIDS.