Acute Dystonic Reaction in Normal Humans Caused by Catecholamine Depletion

Abstract
Summary Five of 24 (21%) normal men (volunteers) administered α-meth-yl-para-tyrosine (AMPT), a catecholamine-depleting agent, developed acute dystonic reactions. The finding that catecholamine depletion without receptor blockade is sufficient to cause acute dystonia suggests that a variety of neu-rotransmitter imbalances may lead to idiopathic primary dystonia.