Therapeutic Efficacy of Sathakuppai Kudineer (Anethum graveolens) in the Management of Soothaga Thadai (Amenorrhea) within the Siddha Medical Framework - A Review

Background In the Siddha system of medicine, Amenorrhea—termed Soothaga Thadai—is understood as a pathological derangement of the Mukkutram (three humors). It is specifically attributed to the stagnation of Vatham and Kapha, which culminates in the obstruction of Abaana Vayu, the vital force responsible for downward physiological excretion. Sathakuppai Kudineer, a polyherbal decoction primarily featuring the seeds of Anethum graveolens, is traditionally indicated for its emmenagogue and "cleansing" properties. Objective This review synthesizes the traditional Siddha pathophysiology of Soothaga Thadai and evaluates the pharmacological mechanisms of Sathakuppai Kudineer in restoring menstrual regularity through a modern phytochemical analysis. Methodology A systematic review was performed utilizing classical Siddha literature, including the Sikitcha Rathna Deepam, alongside contemporary pharmacological databases. Results Sathakuppai exhibits Ushna Veeryam (Hot Potency) and Karppu Suvai (Pungent Taste), which facilitate the liquefaction of stagnant Kapha and the pacification of Vatham. Modern analysis reveals that its bioactive constituents, such as Carvone, Limonene, and specific flavonoids, exert phytoestrogenic and antispasmodic effects. Recent clinical evidence suggests that Sathakuppai Kudineer improves endometrial thickness and encourages the physiological onset of menses by normalizing Abaana Vayu flow. Conclusion Sathakuppai Kudineer represents a viable, non-hormonal, and cost-effective therapeutic intervention for secondary amenorrhea and oligomenorrhea, bridging ancient traditional wisdom with evidence-based phytochemistry.