Tardive eating dystonia.

After cessation of long-term treatment with haloperidol, a 77-year-old man developed severe dyskinetic-dystonic movements involving mainly the tongue and associated also with oromandibular dystonia and blepharospasm that were manifested exclusively during the process of eating and that interfered with feeding. There were no spontaneous involuntary movements nor were they apparent during any other simple or complex activations of the orofacial musculature.