Last verified: April 2026

Sarpagandha

सर्पगन्धा -- Sarpagandha -- "snake smell; that which smells like a snake"

Sarpagandha is the classical Ayurvedic sedative herb -- documented in Charaka Samhita for Anidra (insomnia), Unmada (major psychiatric conditions), and Vata aggravation in the nervous system. Its pharmacological significance is outsized: Reserpine, isolated from Rauwolfia serpentina in 1952, became the first commercially used antihypertensive drug and the first pharmaceutical to be systematically investigated after classical ethnobotanical documentation pointed to its properties.

Important noticeThis page documents what classical texts record. Not medical advice. Consult a qualified practitioner. Full disclaimer

Charaka Samhita, Sutrasthana 4.17

Anilahara... sarpagandha -- Sarpagandha is placed in the Anilahara (Vata-reducing) group. It is Nidrajanan (sleep-inducing), reduces Vata in the nervous system, and is documented for Unmada (mental disorders) and Vishaghna (antitoxic) conditions.

Classical documentation

Bhavaprakasha Nighantu documents Sarpagandha's primary actions: Nidrajanan (induces sleep), Anilahara (reduces Vata), Vishwasaghni (reduces fear/anxiety), and Vishaghna (antitoxic). Classical indications: Anidra (insomnia), Unmada (major psychiatric conditions including schizophrenia-type presentations), hypertension-related headache (Ushna Shirashula), and poisoning. The classical documentation of a single herb simultaneously for insomnia, psychiatric conditions, and hypertension precisely maps to Reserpine's documented pharmacological mechanism -- depletion of monoamine neurotransmitters (norepinephrine, dopamine, serotonin) which reduces blood pressure, produces sedation, and at high doses produces depression.

Reserpine -- the pharmaceutical history

Reserpine was isolated from Rauwolfia serpentina by CIBA laboratories in 1952, following systematic investigation of the classical Ayurvedic documentation of Sarpagandha for hypertension and mental conditions. It became the first widely used antihypertensive pharmaceutical. The clinical observation that reserpine produces depression at higher doses -- and the subsequent discovery of the monoamine hypothesis of depression from this observation -- represents one of the most significant pharmaco-historical contributions of classical Ayurvedic documentation to modern medicine.

Practitioner prescription required

Sarpagandha contains reserpine -- a potent monoamine-depleting agent that can cause depression, sedation, nasal congestion, and gastrointestinal side effects at excess doses. It interacts with antidepressants (particularly MAOIs), antihypertensive medications, and CNS depressants. Classical texts document Sarpagandha as a herb requiring careful dose management. Self-administration is not appropriate. Prescription by a BAMS or MD Ayurveda practitioner with awareness of the patient's complete medication profile is required.