Ayurvedic Properties
- Taste (Rasa)
- Katu, Tikta
- Quality (Guna)
- Laghu, Tikshna
- Potency (Virya)
- Ushna
- Key Constituents
- Tropane alkaloids (Hyoscyamine, Scopolamine (Hyoscine), Atropine)
- Also Known As
- Sanskrit: पारसीकयवानी
Hindi: खुरासानी अजवायन
What is Henbane?
Henbane appears in the Ayurvedic materia medica for the same reason it appears in toxicology books: it is strong. Classical texts used it to ease pain and bring sleep, but always "carefully in small doses", and that warning is the most important thing to know about it.
Henbane (Parasika Yavani), botanically Hyoscyamus niger Linn., is known in Hindi as Khurasani Ajwain. The Sahasra Yoga drug index gives the Sanskrit synonym Krosaniyum. Despite the name, it is not the kitchen spice Ajwain.
The Bhavaprakash Nighantu describes it as a narcotic plant. Modern analysis explains why: it contains the tropane alkaloids hyoscyamine, scopolamine (hyoscine) and atropine.
Benefits of Henbane
These are classical uses recorded for physicians. Henbane is toxic, and none of them is a reason to use it at home.
Pain Relief
The Bhavaprakash Nighantu lists henbane as an analgesic (Vedanasthapana), a substance that settles pain. Its pungent (Katu) and bitter (Tikta) taste, light (Laghu) and sharp (Tikshna) qualities and heating potency (Ushna Virya) give it a penetrating character.
Sleep
It is also listed as sleep-inducing (Nidrajanana), which links it on this site to insomnia. That effect comes through its narcotic action (Madakara): it brings sleep by intoxicating, not by restoring balance. Our page on henbane for insomnia explains why gentler herbs are the sensible choice.
How to Use Henbane
Do not use henbane at home. It is a toxic, narcotic plant, and this page deliberately gives no home dose or preparation.
| Form | Dose | Best For | When to Take |
|---|---|---|---|
| Any form | Small doses, set only by a physician | Classical use for pain and sleeplessness | Under medical supervision only |
The Bhavaprakash Nighantu says only that it was used "carefully in small doses". For sleep, Vata-calming herbs such as Brahmi and Jatamansi are the safe places to start.
Safety & Side Effects
Henbane is not a gentle herb with a few cautions. It is a toxic plant with a few classical uses.
- Narcotic: the Bhavaprakash Nighantu classes it as Madakara, intoxicating or narcotic.
- Potent alkaloids: it contains hyoscyamine, scopolamine (hyoscine) and atropine.
- No self-use: never prepare or take henbane yourself.
- Sedatives: combining a narcotic plant with sleeping pills or other sedating medicines adds to the risk.
- Pregnancy, nursing and children: avoid completely.
If anyone has swallowed henbane, seek emergency medical care immediately.
Recommended: Start Here
If you came here looking for something to help with pain or sleep, do not start with henbane. Start with a gentle, Vata-calming herb instead.
Best starting point for sleep: Brahmi powder in warm milk before bed suits a racing, overthinking mind. Jatamansi is the classical alternative, and Ashwagandha in warm milk suits stress-driven sleeplessness.
Find Brahmi on Amazon ↗ Find Jatamansi on Amazon ↗
Safety: henbane is a toxic narcotic plant; never take it yourself. Avoid Jatamansi in pregnancy.
Henbane vs Other Herbs & Supplements
| Comparison | Henbane | Alternative | Verdict |
|---|---|---|---|
| Henbane vs Brahmi for sleep | Induces sleep through narcotic action; toxic | Brahmi, a Vata-calming sleep herb | Choose Brahmi; henbane is physician-only |
| Henbane vs Jatamansi for sleep | Forced sedation with a narrow safety margin | Jatamansi, one of the most sleep-specific Ayurvedic herbs | Choose Jatamansi (not in pregnancy) |
| Henbane (Khurasani Ajwain) vs Ajwain | Hyoscyamus niger, a narcotic plant | Ajwain, the common kitchen seed | Different plants despite the similar name; never substitute one for the other |
Henbane for Specific Populations
Pregnancy & Nursing
Avoid completely. Henbane is a toxic narcotic plant with potent alkaloids.
Children
Never give henbane to children, and keep any plant material out of their reach. Accidental swallowing is an emergency.
Elderly
Older people are often on several medicines, including sleep aids. Adding a narcotic plant raises the risk, so henbane should not be used.
Athletes
Henbane has no training or recovery role. For sleep after hard training, gentle herbs like Ashwagandha are the safer route.
Frequently Asked Questions
Is henbane the same as Khurasani Ajwain?
Yes. Khurasani Ajwain is the Hindi name for henbane, Hyoscyamus niger. It is a different plant from the kitchen spice Ajwain.
Why is henbane in Ayurvedic texts if it is toxic?
The Bhavaprakash Nighantu records it as pain-relieving and sleep-inducing, used carefully in small doses. Its place in the texts reflects its strength as a medicine in a physician's hands.
What makes henbane dangerous?
It is narcotic and contains the tropane alkaloids hyoscyamine, scopolamine and atropine. These potent compounds leave little room between a medicinal amount and a harmful one.
What should I use for sleep instead?
Gentle, Vata-calming herbs such as Brahmi, Jatamansi or Ashwagandha. Each has its own page with preparation and timing.
How to Use Henbane by Condition
Explore how Henbane is used for specific health concerns — with dosage, preparation methods, and classical references for each.
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.