Synopsis 1. Etymology of Agada Tantra. 2. Investigations of visha. 3. Characteristics and identification of Vishadata. 4. The upavishas. 5. Investigation of different types of visha. 6. General principles of treatment of visha and the upakrama (measures) according to charaka. 7. Madhya visha (Intoxicants). 8. Jangama visha (poisons of animal origin). 9. Description, signs and treatment of upavishas. 10. Mineral toxins. 11. Description of Ahara Visha (food poisoning). 12. Knowledge of poison in common usage in India.