Suvai-Coated Sublingual Delivery: Bridging Siddha Tridosha Regulation with Pharmacological Action

Siddha medicine describes a continuous regulatory pathway beginning at the tongue: food contacts the Rasana Indriyam (tongue), the six tastes (Arupadhu Suvai) are perceived, afferent gustatory signals are transmitted via cranial nerves VII, IX, and X to the nucleus tractus solitarius (NTS) in the brainstem medulla, and from there to higher centres governing systemic regulation — a pathway that Siddha theory maps onto Pancha Bootham (five-element) activation and Mukkutram (Vatham–Pitham–Kabam) equilibrium. Health is the state of Mukkutram balance; disease reflects humor imbalance; and Gunapaadam (Siddha therapeutics) deliberately selects taste-active preparations to correct that imbalance. This paper proposes applying this pathway in sublingual tablet design: a tablet placed sublingually, formulated so that a specific taste is released and held in sustained contact with the tongue for 2–10 minutes during dissolution, selected according to classical Gunapaadam principles for the condition being treated. The tablet thereby produces two simultaneous effects — the established pharmacological action of the core drug absorbed through the sublingual mucosa, and a tastetriggered Mukkutram-correcting action consistent with classical Siddha theory. We further propose, explicitly as an untested hypothesis, that prolonged administration of such a tastecoated sublingual tablet may support recovery in certain chronic conditions by sustaining Mukkutram correction across a full course of treatment. We do not claim this cures any named disease; we propose it as a testable adjunct mechanism with a staged study design to confirm or disprove it.