[Gbob]

There are some drugs that would be usefull in poker. Beta blockers, such as Acebutolol, would help to limit tells by blocking the "fight or flight" response. Studies of poker players have shown the biological responses we all get when we get the best hand, for example. Many of the top players who pride themselves on being able to "read" people are probally picking up on some of these responses.

Taking a beta blocker would give a good edge for many players. I wouldn't be surprised if many players are allready doing this.