[Occurrence of tardive dyskinesia during neuroleptic treatment].

The incidence of tardive dyskinesia under neuroleptic treatment is diversely estimated. The effectiveness of anticholinergics in its prevention is under discussion. Among 52 patients treated with neuroleptics for more than 5 years (mean: 9 years) only 2 developed tardive dyskinesia, and the disorder was transient in each case. The low doses of neuroleptic drugs administered and their systematic association with anticholinergics seem to be partly responsible for this low incidence of tardive dyskinesia.