Ayurveda Codex›Formulations›Arishta

Last verified: April 2026

Arishta

अरिष्ट — Arishta — "Fermented decoction; that which is undestroyed"

Arishta is a fermented herbal decoction — the classical solution to long shelf life, rapid absorption, and channel penetration beyond plain water. Classical texts document that fermentation produces natural alcohol (5–12%) which acts as preservation medium, extraction enhancer, and penetration agent. Self-preserving for years. Faster-acting than non-fermented decoctions.

Important noticeThis page documents what classical texts record about Arishta preparations. This is not medical advice. Which formulation is appropriate requires assessment by a qualified practitioner (BAMS or MD Ayurveda). Full disclaimer →
Definition
Herbal decoction fermented with jaggery, honey, and Dhataki flowers (Woodfordia fruticosa — the classical natural yeast source) in sealed vessels for 30 days, producing 5–12% v/v alcohol. The fermentation is self-limiting when all available sugar is consumed.

Why fermentation — the classical rationale

Sharangadhara Samhita documents: "Kvatha acts slowly and must be freshly prepared. Arishta, made by fermenting the same decoction, acts more rapidly, penetrates channels plain water cannot reach, and preserves itself without degradation for years." Three specific advantages.

Rapid absorption: ethanol is absorbed directly from the gastric mucosa, carrying co-dissolved herbal compounds into systemic circulation faster than any non-fermented preparation. The classical observation that Arishta "acts in a moment" reflects this kinetic difference. Channels inaccessible to plain water: some herbal compounds are partially fat-soluble and poorly absorbed from pure water. The ethanol phase extracts and maintains these compounds in solution.

Sharangadhara Samhita, Madhyama Khanda 10.1–4
"Kvathena mrita dravyani sandhatavena jeevanti — ingredients inactive in the decoction become active through fermentation. Arishta digests and absorbs itself without burdening the Agni. Its Virya spreads rapidly through all Srotas."
1
Decoction preparation: Herbs prepared as Kashaya (16:4 reduction) and cooled below 40°C. Hot decoction kills fermentation organisms.
2
Fermentation agents: Jaggery (primary sugar), honey (secondary), and Dhataki flowers (Woodfordia fruticosa — classical yeast source documented throughout Sharangadhara Samhita) added to cooled decoction.
3
Sealed fermentation: Poured into sealed vessel (classically glazed earthen; modern: stainless steel with lid). Stored at room temperature for 30 days.
4
Filtration and quality test: Filtered through cloth. Classical completion test: lit match held over surface ignites the vapour — confirming minimum 5% v/v alcohol. API specifies 5–12% v/v.
Regulatory note
Arishta preparations contain 5–12% alcohol as a natural fermentation byproduct, not added alcohol. The Drugs and Cosmetics Act Schedule T specifically permits natural fermentation alcohol in Arishta and Asava. These are regulated as Ayurvedic medicines, not alcoholic beverages.

Classical prescription criteria

Indicated when: Rapid action required with sustained effect; patient's Agni is impaired and the self-digestive fermented preparation is advantageous; long-term stable administration; specific compounds better extracted and absorbed with an alcohol carrier.

Dose: 15–30ml diluted in equal warm water, twice daily after meals. Post-meal administration allows food in the stomach to moderate direct mucosal alcohol contact.

Example Arishta preparations

AshwagandharishtaAshwagandha-based — for Vata conditions and debility. Widely prescribed.
ArjunarishtaArjuna bark — classical cardiac tonic. Sharangadhara Samhita.
DashamularishtaTen-root — for Vata conditions including post-partum recovery.
SaraswatarishtaMedhya Rasayana — Brahmi-based for cognitive conditions.
DrakshasavaGrape-based — documented in Charaka Samhita for cardiac and respiratory conditions.