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I think a good friend of mine is suicidal right now.

He got a prescription for Xanax and has been taking them to try and calm himself down, but he's been acting very strange lately. Apologizing to people he hasn't spoken to in months, trying to fix all his damaged friendships and relationships, making no attempt whatsoever to meet or socialize with new people.. He's also started neglecting his bills and job, and last time I saw him all he would say is "i need help, man"

I got him to stay at my place with me so I can make sure he's alright and take care of him til he gets through what he's going through. I need to know what a safe dose of Xanax is so I can make sure he doesn't try to OD while he's here. I've seen him take 3 of his .5mg tabs at a time and been very sedated looking. Is that much dangerous? He's also started drinking and taking his Xanax and I have a feeling he's hoping he "accidentally" overdoses.

He refuses to check in to a hospital to get proper care and it's like he's given up on almost everything.

Is there a certain amount of Xanax that can be lethal? Is he in any danger from taking 3 tabs at a time? Also, can alcohol and Xanax be a lethal combination? I've heard it can be and I really don't want my friend dying.

Thanks for any and all help.