Chlorfenapyr is a moderately hazardous insecticide. There have been previous reports of chlorfenapyr intoxication, but none have reported patient survival or an association with pancreatitis. A 61-year-old woman was brought to the emergency department with vomiting after ingesting 10 mL chlorfenapyr in a suicide attempt 1 hour before. The patient was treated with gastric lavage and activated charcoal, then transferred to the intensive care unit. Initial laboratory data were unremarkable except for elevated amylase/lipase levels (134/222 U/L), which were even higher 7 days later and remained elevated for 2 weeks. Abdominal computed tomography showed diffuse pancreatic swelling. The patient improved with conservative care and was discharged to home 19 days after admission. This is the first reported case of survival after chlorfenapyr intoxication. We recommend early aggressive management in the emergency department and close monitoring in the intensive care unit to detect and treat potentially fatal deterioration after chlorfenapyr intoxication.