Acute psychotic access is defined as the occurrence of a single, acute, and intense psychotic episode in a subject without a neurological or psychiatric history. Isoniazid (INH), a major antibacillar, is the drug most often involved in the occurrence of this psychiatric disorder. However, this side effect is rare and only a few cases have been reported in the literature.
A 57-year-old female patient with diabetes mellitus presented miliary tuberculosis for which an antibacillar treatment was prescribed. Three days later, she presented an acute psychotic access requiring the withdrawal of the INH and the prescription of neuroleptic drugs, without any pyridoxine supplementation. The lab tests were normal. The good clinical evolution after the INH withdrawal confirmed its imputabilty.
Acute psychotic access is a severe and exceptional complication following the administration of INH. Emergency treatment is the only guarantee of a good outcome.
[Show abstract][Hide abstract] ABSTRACT: Isoniazid as part of Directly Observed Treatment-Short course (DOTS) regimen is universally used. Although, associated psychosis in certain cases is documented earlier, type of symptoms and onset of symptoms remains highly variable. We describe a case of 54-year-old female on anti-tubercular therapy with onset of psychosis within three days of Isoniazid initiation characterised by agitation, loosening of association, echolalia with spontaneous remission after drug stoppage. This case highlights the importance of remaining vigilant and considering isoniazid as possible causative agent for psychosis even within days of its intiation and avoiding delay in management.
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