Atropine-Induced Psychosis in The Treatment of Cypermethrin Poisoning: A Case Study

This case study presents a 23-year-old female who ingested an unknown quantity of cypermethrin-containing ant killer chalk in a suicide attempt. She exhibited typical poisoning symptoms such as vomiting, altered mental status, salivation, and abdominal pain. Treatment included gastric lavage and administration of intravenous atropine, which led to atropine-induced psychosis with symptoms like agitation, hallucinations, and anxiety. The adverse reaction was managed by tapering atropine and administering psychiatric support with haloperidol, clonazepam, and escitalopram. The patient recovered and was discharged in stable condition. This case highlights the critical need for careful monitoring of atropine in poisoning cases to prevent serious neuropsychiatric complications.