I started on 40 mg of Latuda (lurasidone) some months ago with no ill side effects. It wasn't quite doing the job, so my provider and I agreed to bump it to 80 mg per day. It was good for a month or more but then I started experiencing jaw tension and grinding teeth out of my control. After another month or so, this activity began to generate pain in my left ear. After enduring that for a couple of weeks, I finally decided that the pain wasn't worth the benefit from the medication.