In the present study animals were exposed to 0.4 and 1.0 LD50 abrin dose and observed for 1 and 3 day post toxin exposure. Abrin exposed animals showed low food and water intake, weight loss and severe diarrhea in time and dose dependent manner. No mortality was observed in 0.4 LD50 abrin exposed animals. 1.0 LD50 abrin exposed animals showed mortality from day 2 onwards and 50% animals died by day 3