When this happens, the drug will stop working. If you take a protease inhibitor by itself, resistance develops within one month. When you take more than one antiviral drug at the same time, HIV mutates much more slowly and it takes much longer for resistance to develop. Sometimes, if you develop resistance to one drug, you will also have resistance to other antiviral drugs. Researchers are excited about Amprenavir because it might not be cross-resistant with other protease inhibitors.
Resistance can develop quickly.
It is very important to take protease inhibitors according to instructions, on schedule, and not to skip or reduce doses. Amprenavir is taken by mouth as a capsule. The capsules are 150mg, so you will take 8 capsules at a time. Amprenavir is available as gelatin capsules and as a liquid. The gelatin capsules should be kept at room temperature.