I don't know if the meds can cause schizophrenia, but it is very common for people to have a terrible time getting off these meds so becoming psychotic doesn't surprise me.

I believe [this is based on coming off meds myself and treating my bipolar 2 with amino acids] that the reason we have some of these issues is because our brains aren't able to produce the needed neurotransmitters on their own to keep us feeling normal so we need to supplement with amino acids and other nutrients just as a diabetic needs insulin. Don't assume you can't get off the meds if you want to. It may be a long, slow process, but chances are you can if you give your brain and body what they need to build your health back up.

Here's some resources to help you figure out how to come off whatever meds you want to go off of without it almost killing you.

This is a web site dedicated to coming off meds. I haven't looked at it other than to scan it, but it looks like it's worth checking out.

Coming Off Psychiatric Medication

This is a book on coming off meds as well using amino acids and other nutrients to help you from going through serious withdrawals. The book is very helpful.

Break Your Prescribed Addiction by Bille Sahley, PhD-painstress