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An account is given of six cases treated with pimozide. Four of there cases fall into the diagnostic category of monosymptomatic hypochondriacal psychosis, a group with a traditionally poor prognosis. Three out of the four have responded favourably to pimozide, while the fourth showed a partial improvement. A fifth case also showed a marked degree of improvement despite a possibility of early cerebral arteriopathy. The one case which showed no improvement was suspected all along of having a personality disorder rather than a psychotic illnes, and this was subsequently confirmed. It is suggested that pimozide: a) may be an effective treatment for monosymptomatic hypochondriacal psychoses whatever their aetiology; and b) may differentiate rapidly between cases of mono‐symptomatic hypochondriacal psychoses and dysmorphophobias due to neurotically determined factors.
Riding et al. (Tue,) studied this question.