I could not find any information on this through my search engines. If you are talking about antiretrovirals, HIV/AIDS medications, you should either repost in one of the HIV/ AIDS forums or ask one of the Moderators on General Q&A to copy your post to a more appropriate location. (When you click on Genereal Q&A, the Moderators are listed at the right side of the screen.) Or you can ask our resident 'expert', homerx.
Do you have a link to the article you are talking about? As long the link does not lead to a sales site or another forum site, you can post it.