My Son Now 37 Has Been Taking Prozac For Years. Since He Was About 15. He Was Behavior Disordered And Deaf Since Birth. Was.diagnoseD WIth Aggravated Depression At About15. Prior To That He Was Always In Trouble With UnrulY And Violent behavior. In The Last Year I Have Noticed An Increase IN Nervous twitches Which Are EmbarrassingTo Me But ApparentlY Does Not Bother Him. Could His Medication Be Causing This.