What can happen if I was intoxicated and took unprescribed medication?

I had been living off-lease with a friend who was prescribed Paxil, which he had been sharing with me. Prior to the incident, we had been drinking some beer. The alcohol triggered a manic episode, which is a potential side effect of Paxil. I was arrested for stealing a wooden ladder from the top of a work van, then breaking into the vehicle. I was caught still inside the vehicle looking through the contents. I understand that per TPC 8.04, voluntary intoxication is barred from a defense, and that CCA has held it to bar evidence of intoxication negating mens rea, as well. There have been cases in other jurisdictions allowing for an involuntary intoxication defense from prescribed medications, provided that the actor could not reasonably have known of the potential side effects producing intoxication before voluntarily choosing to take them. I also understand that since the Paxil was not specifically prescribed to me, it will likely be deemed an illegal drug. My case for an involuntary intoxication defense rests on several points: I have a history of mental illness and had previously been diagnosed with both Attention Deficit Hyperactivity Disorder and dysthymia (a mild, chronic form of depression), for which Paxil is acceptably prescribed medically, albeit not to me specifically. And, while it is a prescription-only medication, it is not a controlled substance. I did not take an excessive amount of Paxil, but took a dosage consistent with what a doctor would have prescribed. While I did have some issues with unexpected intoxication involving Paxil and alcohol, they were limited to being confrontational and aggressive towards strangers in a bar. I concluded that alcohol and Paxil would likely see me committing some sort of assault or disorderly conduct, and had chosen to remain at home the evening of the incident.