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Reyataz better for diarrhea compared to Kaletra?
May 24, 2004

Currently I'm on a Kaletra-based regimine and suffering from diarrhea and GI problems. Generally speaking, would a switch from Kaletra to rReyataz result in an improvement with these side effects? Also, do you know if Reyataz is less likely to cause/worsen lipoatrophy than Kaletra?

Response from Dr. Pierone

Yes, in general, Reyataz is associated with less diarrhea than Kaletra and a switch will often result in improvement in GI side effects. We don't know about lipoatrophy and Reyataz versus Kaletra. Actually, lipoatrophy (fat loss) seems to be more related to NRTI toxicity (d4T, Zerit in particular). Lipohypertrophy (extra fat deposition) seems to be more common with protease inhibitors. Reyataz does not affect cholesterol and triglycerides as much as Kaletra and seems less likely to cause diabetes. Based on this more benign metabolic impact, it is hoped that there will be a lower risk of body composition changes with this agent, but long-term studies are not yet available.

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