<unk> , commonly called<unk> , is an antiretroviral medication used to prevent and treat HIV/AIDS. It is also used to treat chronic hepatitis B when other options are not possible. It is effective against both HIV-1 and HIV-2. It is typically used in combination with other antiretrovirals such as zidovudine and abacavir.<unk>  may be included as part of post-exposure prevention in those who have been potentially exposed to HIV.<unk>  is taken by mouth as a liquid or tablet. Common side effects include nausea, diarrhea, headaches, feeling tired, and cough. Serious side effects include liver disease, lactic acidosis, and worsening hepatitis B among those already infected. It is safe for people over three months of age and can be used during pregnancy. The medication can be taken with or without food.<unk>  is a nucleoside reverse transcriptase inhibitor and works by blocking the HIV reverse transcriptase and hepatitis B virus polymerase.<unk>  was patented in 1995 and approved for use in the United States in 1995. It is on the World Health Organization's List of Essential Medicines. It is available as a generic medication.
Lamivudine
Telbivudine
Sorivudine
Saquinavir
Fosamprenavir
Abacavir
Maribavir
Indinavir