May 2008
| Combi- nation | Advantages | Disadvantages | Impact on Future Options | Regimens |
| 1 NNRTI plus 2 NRTIs |
A powerful combination Low pill count Once-daily combinations possible Works well with high viral loads Works well with low T-cell counts More effective than 2 NRTIs and an unboosted protease inhibitor (PI) |
Common side effects of NNRTIs* Common side effects of NRTIs* Sustiva should not be used by pregnant women or women thinking of becoming pregnant Viramune should not be started in women with a T-cell count over 250 or in men with a T-cell count over 400 |
Preserves PIs for later use There is the potential that resistance to one NRTI could result in resistance to other NRTIs |
Preferred Regimens**
Alternative Regimens
|
| 1 or 2 PIs plus 2 NRTIs |
A powerful combination Once-daily combinations possible Works well with high viral loads Works well with low T-cell counts |
When PIs are "boosted" with Norvir, PIs are more powerful, but there is a risk of:
Common side effects of NRTIs* Common side effects of PIs* |
Preserves NNRTIs for later in case of resistance The failure of a first-line, boosted PI regimen does not result in any PI cross-resistance. However, failure of an unboosted PI regimen (with the exception of Reyataz) may result in PI cross-resistance. There is the potential that resistance to one NRTI could result in resistance to other NRTIs |
Preferred Regimens**
Alternative Regimens
|
| * See "Once- and Twice-a-Day Medications" for typical class side effects.
** Our list of regimens comes from the U.S. Department of Health and Human Services' HIV treatment guidelines. The guidelines label specific regimens as "preferred," which means they should be considered first, or "alternative." Remember, these regimens are only general recommendations; please talk with your doctor about which combination of HIV medications is best for you. *** For many of the NRTIs listed here, we've listed the name of a "fixed-dose combination," which is a single pill that combines two or more individual HIV medications. Many people find it easier to take these fixed-dose combinations rather than each individual medication separately. NRTI fixed-dose combinations are: Combivir (a combination of Epivir + Retrovir), Epzicom (a combination of Epivir + Ziagen), Trizivir (a combination of Epivir + Retrovir + Ziagen) and Truvada (a combination of Emtriva + Viread). There is only one dual-class fixed-dose combination: Atripla (a combination of Sustiva + Emtriva + Viread). | ||||
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