A: Hmmm..don't think you can get that at GNC. This is, after all, the supplement Q&A, but we'll indulge you anyhow... We actually don't know if Valium is a beta-blocker, which is usually what slows down the epinephrine response to stress. We did, however, do a little research on your behalf, we just don't know if we should share the results with you, since you may be pulling a Titus on us and need to reveal the truth.  So, in answer to your question, yes, people have experienced a bit of help in that regard by using valium, but this is inconclusive and answers may be reported "inconclusive" too...which means a re-test, usually. If they think you are tranquilized, you know, they will order a drug test and then a re-test of the polygraph. Palumbo said one time that taking 5-10mg an hour before a test will help you pass. Which makes you wonder.. Which would you rather know about Palumbo.. Whether he's lied to police, or whether he's a human boy trapped inside an alien body?