Ayurvedic Properties
- Taste (Rasa)
- Pungent (Katu), Bitter (Tikta)
- Quality (Guna)
- Sharp (Tikshna)
- Potency (Virya)
- Hot (Ushna)
- Post-digestive (Vipaka)
- Pungent (Katu)
- Also Known As
- English: Black Turpeth
Sanskrit: श्यामा त्रिवृत
Hindi: काली निसोत
What is Black Turpeth?
Most herbs earn their place in Ayurveda by being gentle enough to use often. Black Turpeth is the opposite. It is valued precisely because it is strong: a drastic purgative kept for the moments when a milder cleanse will not do the job.
In Sanskrit it is called (Shyama Trivrit), meaning the dark or black form of Trivrit (Turpeth). In Hindi it is (Kaali Nisoth), "black Nisoth." The Bhavaprakash Nighantu describes it as the darker variety of Trivrit, more potent than the white variety, and requiring careful dosing.
Our sources do not record a separate botanical name or plant family for the black variety. One drug index entry under the similar name "Maha Shyama" gives Argyreia speciosa or Ipomoea pescaprae, but that is a different plant, so we do not apply it here.
Benefits of Black Turpeth
Our sources record one main use for Black Turpeth, and it is a serious one. This is not a wellness herb with a long list of everyday benefits.
Strong Purgation
The Bhavaprakash Nighantu lists its therapeutic actions (Karma) as purgation (Virechana) and drastic, breaking-through action (Bhedana). It is the variety chosen when a stronger purgation is needed than the white variety would give.
Purgation is the basis of Virechana, the cleansing therapy within Panchakarma that clears the body through the bowels under supervision.
Why It Acts So Strongly
Its recorded properties explain the force. It tastes pungent (Katu) and bitter (Tikta), has a sharp, penetrating quality (Tikshna), a hot potency (Ushna Virya) and a pungent post-digestive effect (Katu Vipaka).
In a Classical Purgative Powder
The Sharangadhara Samhita includes it in a seasonal purgation powder for early winter:
In Hemanta (early winter), one should take the powder with warm water: Hemachiri, Pippali (Piper longum), Nagara (dry ginger), Saindhava (rock salt), and Shyama Trivrit together.
Sharangadhara Samhita, Uttara Khanda, Chapter 4: Virechana Vidhi (Purgation Therapy)
The companions are Pippali (long pepper), dry ginger and rock salt.
How to Use Black Turpeth
Our sources give no dose for Black Turpeth. They stress only that it is more potent than the white variety and requires careful dosing.
| Form | Dose | Best For | When to Take |
|---|---|---|---|
| Powder, in a combined purgative formula with warm water | Not recorded | Supervised purgation therapy (Virechana) | Early winter (Hemanta), per the Sharangadhara Samhita |
The only preparation recorded is the Sharangadhara Samhita powder, where it is combined with Hemachiri, long pepper, dry ginger and rock salt and taken with warm water in early winter.
Because it can cause excessive purgation, Black Turpeth should be given only by a qualified Ayurvedic practitioner as part of a planned therapy. It is not a herb for self-dosing.
Safety & Side Effects
Black Turpeth needs more caution than almost any herb on this site. It is a drastic purgative, and the risks come directly from that strength.
What Can Go Wrong
The Bhavaprakash Nighantu warns that the black variety can cause excessive purgation and griping (cramping abdominal pain). It is more potent than the white variety and requires careful dosing.
Who Should Avoid It
- Weak patients. Our sources say it is generally avoided in people who are weak.
- People of Pitta constitution. It is generally avoided here too. Our sources give no reason, though its hot potency and sharp quality are worth noting.
What Is Not Recorded
Our sources record no drug interactions, no pregnancy or nursing data and no overdose guidance. That silence is not a sign of safety.
Use Black Turpeth only under the direct supervision of a qualified Ayurvedic practitioner, and talk to your doctor first if you have any medical condition or take any medication.
Recommended: Start Here
The right first step with Black Turpeth is not to buy it and try it. It is a drastic purgative, and our sources say it can cause excessive purgation and griping. If purgation therapy interests you, start by learning how supervised Virechana works and by finding a qualified Ayurvedic practitioner who can judge whether it suits you.
The links below point to reading material and practitioner-oriented resources, not to a product for self-use.
Panchakarma Books ↗ Ayurvedic Materia Medica Books ↗
Safety note: do not use Black Turpeth to purge yourself. It is generally avoided in weak people and those of Pitta constitution, and should be given only by a qualified practitioner.
Black Turpeth vs Other Herbs & Supplements
Our sources make one direct comparison for Black Turpeth: against the white variety of the same herb. The other rows below rest on recorded properties and on the formula it appears in.
| Comparison | Black Turpeth | Alternative | Verdict |
|---|---|---|---|
| Black Turpeth vs White Trivrit | Darker variety; more drastic purgation; requires careful dosing | Trivrit (white variety): described as the less potent form | The black variety is reserved for when stronger purgation is needed. A practitioner makes this choice. |
| Black Turpeth vs Pippali | Drastic purgative; hot, sharp | Pippali (long pepper): a companion in the same Sharangadhara purgative powder | Not interchangeable. In the classical formula they are used together, not as substitutes. |
| Black Turpeth vs Dry Ginger | Pungent and bitter taste; purgative action | Ginger (dry, Nagara): another partner in the same powder | Our sources record only Black Turpeth as the purgative ingredient there. Do not treat one as a stand-in for the other. |
Black Turpeth for Specific Populations
Our sources give one clear population warning: Black Turpeth is generally avoided in weak patients and in people of Pitta constitution. Beyond that, the guidance below is caution rather than recorded data.
Pregnancy & Nursing
No guidance is recorded for pregnancy or nursing. Given that it is a drastic purgative that can cause excessive purgation and griping, it should not be used during pregnancy or nursing unless a qualified practitioner and your doctor decide otherwise.
Children
No guidance is recorded for children. A drastic purgative is a poor fit for a small, easily dehydrated body; do not give it to children.
Elderly
No specific guidance is recorded for older adults. Because our sources say it is avoided in weak patients, frail older people should not use it, and any use should be decided by a practitioner.
Athletes
No guidance is recorded for athletes. Strong purgation is not a training aid, and it should not be used for weight cutting or quick "detox."
Frequently Asked Questions
Is Black Turpeth the same as Trivrit?
It is a variety of it. Classical texts describe (Shyama Trivrit) as the darker, more drastic variety of Trivrit, more potent than the white variety. Both are called Nisoth in Hindi.
Can I use Black Turpeth as a laxative for constipation?
Our sources describe it as a drastic purgative used when stronger purgation is needed, not as an everyday laxative. It can cause excessive purgation and griping, so it should only be given by a qualified practitioner.
Why is it avoided in people with Pitta constitution?
Our sources state that it is generally avoided in Pitta constitution without giving a reason. Its recorded hot potency and sharp quality may be relevant, since Pitta is the hot dosha.
Is Black Turpeth the same plant as Maha Shyama?
No. A drug index entry under "Maha Shyama" gives Argyreia speciosa or Ipomoea pescaprae, which are different plants. Do not confuse the two when reading labels or texts.
Which classical text mentions it in a formula?
The Sharangadhara Samhita, Uttara Khanda, Chapter 4 (Virechana Vidhi), includes it in an early winter purgative powder with Hemachiri, long pepper, dry ginger and rock salt, taken with warm water.
▶ Classical Text References (1 sources)
References in Sharangadhara Samhita
In Hemanta (early winter), one should take the powder with warm water — Hemachiri, Pippali (Piper longum), Nagara (dry ginger), Saindhava (rock salt), and Shyama Trivrit together.
— Sharangadhara Samhita, Uttara Khanda, Chapter 4: Virechana Vidhi (Purgation Therapy)
Source: Sharangadhara Samhita, Uttara Khanda, Chapter 4: Virechana Vidhi (Purgation Therapy)
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Ayurvedic treatments should be pursued under the guidance of a qualified practitioner (BAMS/MD Ayurveda). Always consult your healthcare provider before starting any new treatment. Content is sourced from classical Ayurvedic texts and may not reflect the latest medical research.