My Fiances Mental Break Down

A couple months ago they changed my fiances schizophrenia medication. And things have not been going well. He was talking to himself. Well no himself. People who aren't actually there. I tried to tell his psychiatrist that the medication is making him worse but they just said give it time. He'll be fine. This continued. I would wake up to him having a conversation with someone who wasn't there. This morning he had a full mental break down and climbed on top of our roof because the voices told him to! I called his mom and 911 because he wouldn't get down. He was just freaking out and scared. He fell off the roof and broke his arm! I'm calling his psychiatrist Monday! I tried to tell them but they didn't fuvking listen