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Avyakta Ras (taste that is sometimes palatable and sometimes not palatable or that is hidden), Teekshna (Penetrating), Ruksha (Dry), Sukshma (Minuteness), Ushna (Heat), Ashukar (Quick or immediate action), Vishada (Pervading or diffusing action), and Apaki (Not digested) are the qualities of Visha. It immediately distributes throughout the body before going through digestion. creates the poisonous consequences and the vitiation of Dosha (Vata-Pitta-Kapha) and Dhatu (Rasa-Rakta-Mamsa-Meda-Asthi-Majja-Shukra). Vishaghna Dravyas are medicines that counteract and lessen the harmful effects of the vitiated Dosha (Vata-Pitta-Kapha) and Dhatus, which include Rasa (plasma), Rakta (blood), Mamsa (muscle tissue), Meda (fat), Asthi (bones), Majja (bone marrow), and Shukra (semen). A chemical that is harmful or perhaps fatal that induces Shoka (sadness) is known as visha. Ayurvedic texts provide descriptions of several toxic medications, their counter-actions, and their post-purification pharmacological effects. The chemical makeup of the toxic components and their evolutionary relationships can be used to classify plants as poisonous. Examples of such categories include those that are toxic to eat, poisonous when contacted, photosensitive, and airborne allergens. A wide variety of physiologically active chemical compounds, including alkaloids, polypeptides, amines, glycosides, oxalates, resins, and toxalbumins, are included in phytotoxins. The many detoxifications or cleansing procedures (known as "Sodhana") used in the Ayurvedic medical system are discussed in this overview. Thus, in addition to their pharmacological effects and their Guna, Rasa, Vipaka, and Veerya, Prabhava from the many Ayurvedic classical works, an attempt is made here to screen the Visha Dravyas and their methods of purification in various media.

KEYWORDS: Ayurveda, Drug purification, Pharmacological effects, Shodhana, Toxic plants, Visha, Vishaghna Dravyas.