Virechana (Sanskrit for therapeutic purgation) is a classical Panchakarma cleanse designed to expel excess Pitta dosha and accumulated toxins (Ama) from the liver, gallbladder, and intestines through controlled purgation. Treatment comprises three phases: (1) **Purvakarma (preparation)** via internal and external oleation (Snehapana with ghee/oil) and fomentation (Swedana) over 3–7 days to mobilize ama for elimination :contentReference[oaicite:0]{index=0}; (2) **Pradhana Karma (main procedure)** involves administering herbal purgatives—such as Triphala, Trivrit, castor oil, senna, or herbal lehyams—on an empty stomach to induce a therapeutic bowel evacuation under supervision :contentReference[oaicite:1]{index=1}; and (3) **Paschatkarma (post-care)** includes a graduated light diet, rest, and continued monitoring to support Agni restoration and dosha balance :contentReference[oaicite:2]{index=2}.