What do you need to know about dyskinesia?

Dyskinesia refers to difficulty with voluntary movement. The prefix "dys" comes from the Greek word describing something that is bad, abnormal, diseased or the opposite of the rest of the word. The suffix “kinesia” means motion. The term dyskinesia is often combined with the term "tardive," which means "lateness," or something that does not occur right away. Tardive dyskinesia is a dreaded and sometimes permanent side effect of taking certain medications. It is characterized by involuntary movements of the lips, tongue, trunk, arms and legs.