IMOHO I think at this point, the almighty dollar has a lot to do with it. If I remember correctly, Zac lost his insurance when he lost his job. These meds. can be quite costly if you have to pay out of pocket. Unless he gets on medicare, he will have a hard time paying for the physchiatric help he so desperately needs.
Sadly there are many like him in our great nation with mental disabilities, that cannot get the help they need due to lack of insurance and/or money.
At this point, the only recourses would be to go to an ER, and tell them you need psych. help as you feel you are in danger to yourself or others.
Good luck & God bless, bro.