Octachlorodibenzo-p-dioxin

Octachlorodibenzo-p-dioxin (OCDD) is an environmental contaminant but is not acutely toxic. In rats, Octachlorodibenzo-p-dioxin (50 μg/kg i.v. or 50-5000 μg/kg p.o.) has a systemic elimination half-life of 3-5 months and accumulates and concentrates in the liver and adipose tissue after low-dose, repeated exposure. Repeated administration of octachlorodibenzo-p-dioxin causes increases in 7-ethoxyresorufin-O-deethylase (7-EROD) activity and total cytochrome P-450 levels[1].