Agada Tantra (Sanskrit: अगद तन्त्र) is recognized as one of the eight classical branches of Ayurveda (Ashtanga Ayurveda), dedicated specifically to the science of toxicology. It covers the identification, prevention, diagnosis, and treatment of poisoning by animate (animal origin), inanimate (plant, mineral, or chemical), and artificial sources.

Traditional texts describe Agada Tantra as addressing a wide range of poisonings—from snake bites, insect stings, and food poisoning to toxic minerals and artificial combinations, as well as medicine-induced toxicity. It encompasses both emergency and chronic detoxification strategies. The discipline was historically entrusted to specialist physicians (Vishavaidyas) who not only treated cases of poisoning but also protected royal families and the public against intentional or accidental toxins.

Agada Tantra includes detailed descriptions of symptoms and signs of poisoning, methods for quick detection, preparation and application of antidotes, and the use of specific therapies such as herbal medicines, minerals, physical cleansing techniques, and even spiritual practices considered protective against toxins.

Modern Ayurveda continues to emphasize Agada Tantra’s relevance in the context of widespread pollution, food adulteration, pesticide exposure, and adverse drug reactions. The branch also aligns with forensic medicine and medical jurisprudence in today’s practice.

In summary, Agada Tantra stands as Ayurveda’s holistic science for detoxification, antidote development, and the management of toxicological emergencies and chronic poisoning.