Clozapine responsive catatonia: A series of five cases
A 56-year-old Hindu male patient from middle socio-economic class, urban background, education up to MA, school teacher by profession presented with recurrent catatonic symptom of mutism, rigidity, posturing, waxy flexibility and nihilistic delusion. Each of the five past episodes (1st being at the age of 40 years) persisted for 4-6 months, with similar kind of catatonic symptom and did not respond to lorazepam or ECT. After detailed history, mental state and neurological examination and relevant detailed investigations the provisional diagnosis was made to be catatonia in a case of mood disorder currently severe depression with psychotic feature (DSM IV). Each episode persisted for several months to years followed by complete recovery spontaneously.