Jahar Mohra Pishti: Traditional Uses, Evidence & Safety

TL;DR

Jahar Mohra Pishti is a fine powder of serpentine (a magnesium silicate mineral), levigated with rose water without the use of fire. It is an important drug of both Ayurveda and Unani medicine, traditionally valued as an antidote and for diarrhea, fever, and bleeding. The modern record contains exactly one kind of study: pharmaceutical standardization. No efficacy or toxicity studies exist.

What it is

Jahar Mohra (also spelled Zahar Mohra) is serpentine, a magnesium silicate mineral. In Rasashastra it is classified under Sikta Varga, the group of silica-containing drugs, and is described as an important drug of Ayurveda and Unani medicine (STM Journals standardization study).

The name reflects its traditional reputation: jahar (poison) + mohra (antidote). It is the "poison-antidote" stone of Unani practice.

Pishti vs. bhasma: the pishti is prepared by purifying the stone (repeated heating and quenching in cow's milk or Triphala decoction). The powder is then levigated with rose water or chandanadi arka for days, without calcination: an anagnitapta (fire-free) preparation. The bhasma, by contrast, is calcined after levigation. Classical texts advise different levigating media (cow's milk, Arjuna bark decoction, Vatajata decoction) to modify its properties (STM Journals).

Traditional use

In Unani and Ayurvedic practice, Jahar Mohra is traditionally used as an antidote for poisoning (including scorpion stings and snake bites in folk use). It is also used for diarrhea, nausea and vomiting, burning sensations, chronic fever, high blood pressure, palpitation, and menorrhagia. It is considered cooling and Pitta-pacifying. These are traditional attributions. The research section explains what, if anything, backs them.

What modern research says

Standardization (pharmaceutical study)

Chandak et al. developed a Standard Manufacturing Procedure for Jaharamohara Bhasma. They prepared three batches by two methods (Gajaputa and Varahaputa calcination) following Rasatantrasaar, Siddhaprayoga Sangrah, and Rasoddharatantra, reporting yields of about 76–81% with creamish-white to greyish-white product (STM Journals).

This is manufacturing science: it standardizes how the preparation is made, not whether it works.

What the evidence does not support (yet)

No pharmacological studies, animal studies, toxicity studies, or human trials of Jahar Mohra Pishti or Bhasma were identified. Every traditional claim, antidote, antidiarrheal, antihypertensive, antipyretic, is currently untested by modern methods.

Safety & contraindications

No human safety data for Jahar Mohra exist. Three points deserve attention:

FAQs

What is Jahar Mohra Pishti?

A fire-free (anagnitapta) Ayurvedic/Unani preparation of serpentine (magnesium silicate), purified by repeated heating and quenching, then levigated for days with rose water. The calcined version is called Jahar Mohra Bhasma.

Does it work as an antidote?

That is its traditional name and reputation. No modern study has tested antidote, antidiarrheal, antihypertensive, or any other claimed effect.

Why does the serpentine–asbestos connection matter?

It doesn't mean the medicine contains asbestos. It means the raw mineral comes from a group that includes an asbestiform variety, so proper identification and purification of the starting stone are non-negotiable. Buy only from reputable manufacturers and use only under practitioner supervision.

Our editorial rule requires a pharmacopoeial or clinical-trial dose. None exists for Jahar Mohra, so we state none. And we do not repeat the milligram figures found on commercial sites, which are not evidence-based.

Annotated Sources

The identity (serpentine, Sikta Varga, Ayurveda/Unani drug), classical references (Rasatantrasaar, Siddhaprayoga Sangrah, Rasoddharatantra), and the Standard Manufacturing Procedure are from Chandak et al., Research & Reviews: A Journal (PDF). The serpentine–chrysotile (asbestos) mineralogical relationship is documented by the U.S. Geological Survey.

Disclaimer

This article is for educational purposes only and is not medical advice. Jahar Mohra Pishti has no modern evidence of efficacy or safety; it is a mineral preparation whose raw material belongs to the serpentine group that includes asbestos. Use only products from reputable manufacturers and only under the supervision of a qualified practitioner — especially if pregnant, breastfeeding, managing a medical condition, giving it to a child, or taking prescription medicines.