My dad just told me he quit taking his abilify he was on 15 mg a day. I’m worried about what this could do. Has anyone stopped taking a dose similar? I don’t really know what the repercussions could be and I’m looking for info so I can talk to him about it. 

He doesn’t believe he needs it and just stopped taking it cold turkey a couple of days ago. He was in inpatient psych for about 10 days (~6 months ago), where he was prescribed the medication. He doesn’t have anyone managing the medication or his mental health. He only has a primary care doctor. Just looking for any advice at all, I’m worried for my dad. Thank you all so much!