I had a friend who use to play the gambling only when he consumed drugs,Sometimes he use yo win the money.But most of the time he loss the funds,when we have a chat on the weekend we shared our experiences.The reason of the loss in the drug consumption is the gambler will play the game without any hesitation to take risk.
Although it depends on the gambler interpretation on taking drugs for gambling because for me I see no connection between taking drugs and gambling but the only thing I can understand about his reason of taking drugs before gambling is that when someone is under the influence of drugs they hardly feel any pains of losing anything and at that moment things become very common for them, so perhaps I believe the reasons why he loves taking drugs before gambling is that he will not easily get so emotional if he loses at the moment but in otherwise there is every chance that the person will still get emotional when the drugs most have cleared from his eyes and then he realizes the amount he had lost.