Getting Meds in Jail

So I finally convinced my incarcerated son that he needs to get back on his meds.  I called the jail to find out what needs to be done to make that happen.  Turns out that because he hasn't seen his Texas psychiatrist since May, stopped taking his meds almost 6 months ago, and was in denial about his issues and need for meds so never got an Oklahoma pdoc,  he can't get anyone to prescribe meds now.

There are only 15,000 people in the entire county, and almost half of them live in the county seat where the jail is located.  The jail has only 120 beds and the nurse is in only once a week for an hour.  No pdoc in this tiny town will take on a new patient who is incarcerated and uninsured.  His lawyer could request a psych eval, but he doesn't even have a public defender assigned to him yet.

My son was on 2 mood stabilizers, an anti-psychotic and an anti-depressant - most of which were black box with potentially fatal consequences if he doesn't titrate on them slowly, so he can't just "pick up where he left off."  His old psychiatrist is unwilling to prescribe medications.  Even if he does, my son would have to pay for these meds out of pocket when he gets out of jail ($1500-2000/month).  Not sure what to do next.

I guess I'll call their local MHMR equivalent tomorrow, but I don't know how they would access him in jail to treat him.