Hi, ecrivain, welcome to PsychCentral. What a scary corner you are in. I was thinking you were going to complian about your husband's driving rather than his threatening suicide. I would not like to be in the car with him if he is having so much trouble.

I don't know that there is anything you can do about his comments, they sound like they are spur of the moment rather than planned comments. A lot of people think about suicide, have suicide ideation without actually attempting suicide. If your husband has never attempted suicide and is taking himself off medicine cold turkey, it may be the changes he is going through at the moment. As long as he is going to his therapist and his therapist is now alerted to your concern I think he might have enough people around him so someone will notice if his actual behavior changes?