Akathisia: the syndrome of motor restlessness.

Akathisia is a common but frequently unrecognized complication of antipsychotic medication. Affected individuals report an inner discomfort which they attempt to relieve by increased motor activity. This disorder often causes dramatic changes in behavior which may be misinterpreted as signs that more, rather than less, medication is required. Diphenhydramine therapy is often effective in new-onset akathisia. Anticholinergic agents may also be of value.