Fosamprenavir is a prescription medicine licensed to treat HIV and AIDS. This article from the eMedTV Web site explains how it works and offers a more in-depth look at the drug's effects, possible side effects, and dosing information.
Potential side effects of fosamprenavir include abdominal pain, vomiting, and headaches. This eMedTV article also describes the most common side effect seen in children and lists potentially serious side effects that may require medical attention.
Fosamprenavir uses are mainly focused on the treatment of HIV or AIDS. As this eMedTV page explains, the drug is also used off-label for preventing infection in people exposed to HIV (i.e., healthcare workers exposed to contaminated needle sticks).
Adults who have never taken protease inhibitors before may take 1400 mg of fosamprenavir twice daily. This eMedTV segment offers other fosamprenavir dosing options for adults and also includes dosing guidelines for children.
Efavirenz, fluticasone, and nevirapine are medicines that may interact with fosamprenavir. This eMedTV resource lists other medicines that may cause drug interactions with fosamprenavir and describes the potential effects of these interactions.
You should not take fosamprenavir if you are allergic to amprenavir. This eMedTV page offers other precautions and warnings with fosamprenavir, including more information on who should not take the drug and possible side effects that may occur.