Emerging trend of self harm by using 'kala pathar' hair dye [paraphenylene diamine]: an epidemiological study

ABSTRACT

Background: Poisoning due to Hair dye containing Paraphenylene diamine, famous with local name of 'Kala Pathar' is an emerging way of self harm in developing countries. The substance produces toxic effects if ingested or when applied locally including angioedema, respiratory distress, rhabdomyolysis, acute renal failure and hepatic necrosis