Protease Inhibitors stop HIV replication by preventing the enzyme protease from cutting the virus into shorter pieces that it needs to make copies of itself in newly infected cells. New copies are still made but they are defective and not completely formed so they can't infect other cells.

 Lexiva (fosamprenavir)

Usual Dosage

2 X 700mg tablets twice per day (Dose will changed when given with Norvir)

May be taken with or without food

Side Effects to report to your doctor

• nausea/diarrhea/vomiting
• Loss of appetite
• headache
• Lipodystrophy
• increased cholesterol and triglyceride levels
• general feeling of malaise ("crummy feeling")

Drug Interactions

Lexiva dosage will be adjusted when taken with Norvir

St. John's Wort should not be taken with amprenavir as it lowers amprenavir levels in the blood.

Protease inhibitors can increase the effects of Viagra. Viagra doses should be lowered when taking with protease inhibitors.

All of your Antiviral Medications must be taken exactly as prescribed, without skipping or altering doses. Please notify you doctor if you have any problems with these or any of your medicines.