The British Journal of Psychiatry 130: 581-585 (1977)
© 1977 The Royal College of Psychiatrists
A comparison of piribedil, procyclidine and placebo in the control of phenothiazine-induced parkinsonism
RH Mindham, P Lamb and R Bradley
A double-blind, cross-over trial of the effectiveness of piribedil,
procyclidine and placebo in the control of parkinsonism induced by
fluphenazine decanoate was conducted in sixteen cases of chronic
schizophrenia. Procyclidine was shown to be more effective and piribedil
less effective than the placebo. Piribedil produced a number of unpleasant
effects, including headache, vomiting and malaise.