There are drug treatment clinics in my country and they can provide therapeutic assistance to a person suffering from gambling addiction.
Aren't they more like antidepressants or something of the sort? I'd honestly think that taking a walk, having some fresh air or having a vacation of sorts is a lot better than drugs. Idk, it just makes it feel more like, the one under medication is in need of a LOT of help instead of having that free mindset of calmness you get when having a breather. Like instead of letting go of what strangles you, it instead just lets you go for a moment before strangling back with stronger momentum/force.
It depends, I really think those kind of medicines have their reason to be especially if they are used during the short term, the problem is that many doctors give those drugs to their patients for years and that is when it becomes a problem because we know of all the undesired effects drugs like that have on the body, that is why people need to learn to do the things you describe, however those drugs can be effective at the beginning of the treatment to treat gambling addiction as many gamblers that have indebted themselves to the point it is very difficult to pay their debts have suicidal thoughts.