An unusual presentation of neuroleptic malignant syndrome.

The neuroleptic malignant syndrome is an exceedingly rare but potentially fatal condition characterized by parkinsonian type rigidity, rise of temperature and altered consciousness. This idiosyncratic side-effect of almost all psychotic drugs though rare may occur even when neuroleptics are used for a short period. Here a very rare presentation of a case, of neuroleptic malignant syndrome appearing 2 days following 2nd dose of injection fluphenazine decanoate (0.5 ml) IM in whom 1st dose having 30 days prior to the 2nd one did not show any adverse effect, is being reported.