That we’re talking about an AIDS cocktail has already been established, as has the company (GILD) and three of the four drugs (Viread, Emtriva, and Elvitegravir) that comprise the combination pill with the code name. We’ve also established that the fourth drug is not Sustiva or Ritonavir.
Final hint: The answer is essentially given away in a post on this board from the current calendar year.