The Body: The Complete HIV/AIDS Resource
Follow Us Follow Us on Facebook Follow Us on Twitter Download Our App 
Professionals >> Visit The Body PROThe Body en Espanol
Ask the Experts About

Safe Sex and HIV PreventionSafe Sex and HIV Prevention
Rollover images to visit our other forums!
Recent AnswersAsk a Question
  • Email Email
  • Glossary Glossary

Does Truvada influence the window period of HIV infection?

Sep 8, 2008


On 6/15, I had a high risk exposure with a HIV positive female.

I also take Truvada daily for my heptatis B infection daily, and I was wondering if by taking truvada, does it change the 3 months window period?

I recently tested negative on 9/1 and was wondering if I can put all this behind me or do I need to re-test again because I take Truvada daily?



Response from Dr. Frascino

Hello Ben,

There is very little concrete data on this topic. From what I've been able to uncover, taking daily Truvada should not significantly alter the window period. If you and/or your doctor have ongoing concerns, you could consider getting a PCR test, which does not relay on antibody formation. However, PCR RNA and/or PCR DNA are not routinely recommended for HIV screening, due to the rate of false-positives, technical considerations and cost. They are also not FDA approved for this purpose but can be helpful in determining unclear HIV antibody test results.

Dr. Bob

PEP Window
what to do

  • Email Email
  • Glossary Glossary

 Get Email Notifications When This Forum Updates or Subscribe With RSS



This forum is designed for educational purposes only, and experts are not rendering medical, mental health, legal or other professional advice or services. If you have or suspect you may have a medical, mental health, legal or other problem that requires advice, consult your own caregiver, attorney or other qualified professional.

Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither nor any advertiser is the publisher or speaker of posted visitors' questions or the experts' material.

Review our complete terms of use and copyright notice.

Powered by ExpertViewpoint