Human Immunodeficiency Virus (HIV) Infection (cont.)
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Medicines are the primary treatment for HIV. Your doctor will usually prescribe several medicines—this is sometimes called an anti-HIV "cocktail"—that keeps HIV from multiplying and helps keep the immune system healthy. In the past a person had to take several doses of HIV medicine every day, which was hard for some people. But over the past few years, this routine has become much simpler. And people take their medicine for HIV only once or twice a day.
Medicines used to treat HIV are called antiretrovirals, and several of these are combined for treatment called highly active antiretroviral therapy, or HAART. Using HAART reduces your risk of developing resistance to HIV medicines.
When choosing antiretroviral medicines, your doctor will think about certain things, such as:
Medicines also are used to prevent other illnesses that can occur with HIV as the result of a weakened immune system. Certain opportunistic infections, such as some types of pneumonia, can develop when HIV attacks and destroys too many CD4+ cells. If too many CD4+ cells are destroyed, the body can no longer fight off infection.
Medicines that prevent HIV from multiplying are called antiretrovirals and include:
The U.S. National Institutes of Health recommends one of the following programs for people who begin treatment for HIV:5
If your viral load does not drop as expected, or if your CD4+ cell count starts to fall, your doctor will try to determine why the treatment was not effective.
There are two main reasons that treatment fails:
What to think about
You will have frequent blood tests to monitor your CD4+ cell count and viral load while you are taking medicines to treat HIV.
Taking your medicines as prescribed can keep HIV from multiplying and will help prevent other infections. This also can help keep the virus from becoming resistant to the medicines and prevent problems that can limit future treatment options.
Your medicines may have unpleasant side effects, which sometimes make you feel worse than you did before you started taking them. Talk to your doctor about your side effects. He or she may be able to adjust your medicines or prescribe a different one.
You may be able to take several medicines combined into one pill. This reduces the number of pills you have to take each day.
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