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What Is Fosamprenavir

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AIDS InfoNet

Fosamprenavir (Telzir, Lexiva)

... What Is Fosamprenavir? Who Should Take It? What About Drug Resistance? How Is It Taken? What Are the Side Effects? How Does It React With Other Drugs? What Is Fosamprenavir? Fosamprenavir is a drug used for antiretroviral therapy
Ask the Experts

Tenefovir, Emtriva and Fosamprenavir for wild type virus

Would Teneforvir, Emtriva and Fosamprenavir(not boosted with Retonavir) be a potent combo for myself who is found to carry wild type virus? The present regimen includes Kaletra and Retonavir which is giving me endless GI problems. I am...
Benjamin Young, M.D., Ph.D.

Response from Benjamin Young, M.D., Ph.D.

Rocky Mountain CARES
Thanks for your post.Though not (yet) formally tested, the combination of tenofovir (Viread), FTC (Emtriva; also available in combination with tenofovir as Truvada) with unboosted fosamprenavir (Lexiva, Telzir) should be quite well tolerated.A... Read more »

Inicio de tratamiento truvada+fosamprenavir+ritonavir

Hola doctor, antes que nada gracias por la ayuda que brinda y por el tiempo que se toma en contestar las preguntas, tengo una duda espero me pueda ayudar. Inicie mi tratamiento con truvada+fosamprenavir+ritonavir. Apenas inicie a tomarlo, y por lo...
Steven M. Natterstad, M.D.

Response from Steven M. Natterstad, M.D.

Frascino Medical Group
Hola mi amigo mexicano,Afortunadamente, el riesgo ms fuerte de la lipoatrofia (prdida de grasa en la cara, brazos, glteos y piernas) se ve con el uso de los nuclesidos AZT (zidovudina, Retrovir, Combivir, Trizivir) y D4T (stavudina, Zerit). No se la... Read more »

fosamprenavir and tenofovir interaction

Is there any drug-drug interactions that you know of between the new PI- fosamprenavir and tenofovir?
Benjamin Young, M.D., Ph.D.

Response from Benjamin Young, M.D., Ph.D.

Rocky Mountain CARES
Thanks for your question.We have very good data about the one-way interaction-- there's no significant change in fosamprenavir's levels when dosed with tenofovir. This is different that the situation for another new PI, atazanavir. When atazanavir... Read more »


Hi Dr. Young,Not too long ago, i read fosamprenavir had gone through clinical trials, successfully. It appears to have great efficacy, little side effects (especially for a PI) and the once daily protocol is favorable. Why hasn't it hit the market...
Benjamin Young, M.D., Ph.D.

Response from Benjamin Young, M.D., Ph.D.

Rocky Mountain CARES
Fosamprenavir (or 908) is a new HIV protease inhibitor (the follow up to the potent, but unwieldly amprenavir (Agenerase). The maker of fosamprenavir, GlaxoSmithKline has submitted paperwork to the US FDA for review; I expect that we will hear from... Read more »

An Overview of Lexiva (Fosamprenavir, Telzir)

FOS-am-pren-a-veer Brand Name: Lexiva Other Name(s): Fosamprenavir calcium, GW 433908, GW433908, Telzir, VX 175, f-APV Drug Class: Protease Inhibitors Fosamprenavir, also known as Lexiva, is a type of medicine called a protease... Read more »
InfoRed SIDA

Fosamprenavir (Telzir, Lexiva)

¿Qué Es Fosamprenavir? ¿Quién Debe Tomar Fosamprenavir? ¿Qué Es la Resistencia a los Medicamentos? ¿Cómo Se Toma? ¿Cuáles Son los Efectos Secundarios? ¿Cómo Reacciona con Otros Medicamentos? ¿Qué es Fosamprenavir? ... Read more »
The Body PRO

Fosamprenavir Update

In the past year, 2 new protease inhibitors (PIs), atazanavir (ATV, Reyataz) and fosamprenavir (908, Lexiva, Telzir), have dramatically increased practical treatment options for persons with HIV infection. Fosamprenavir was approved by the U.S. Food... Read more »
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Thanks for your support and any more advice?

Posted by motherinlaw, 3 Replies
I want to thank everyone for their support and help. I posted this in response to my own previous posting and felt it might have gotten lost in the shuffle and so am reposting. I have just spoken to my son again. He was finally able to convince... Read more »

What should I think?

Posted by motherinlaw, 9 Replies
I will try not to make this too son called yesterday and told me his wife was not doing well. My HIV negative son and three HIV negative grandchildren may soon lose their HIV positive wife and mother. My son and daughter-in-law seem not to... Read more »

Abbott pharmaceuticals price gouging protease inh

Posted by BabyPeanut
Editorial, The Center for AIDS (12/15/03) In a move that startled healthcare professionals and community members alike, Abbott pharmaceuticals announced a price increase of almost 500% for its protease inhibitor ritonavir (Norvir). Norvir is widely... Read more »


Posted by Anonymous, 1 Reply
Exploring: NIAID, NIH, U.S. DHHS March 2005 HIV Infection and AIDS: An Overview INTRODUCTION AIDS (acquired immunodeficiency syndrome) was first reported in the United States in 1981 and has since become a major worldwide epidemic. AIDS is caused... Read more »