Datura: Benefits, Uses & Dosage

Datura is a poison. That is the first thing Ayurveda itself says about it. The classical texts call it visha (Visha), meaning poison, and the Sharangadhara Samhita places it among the sub-poisons (Upavisha), a group of strongly toxic plants. Yet the same tradition used it, carefully, as a medicine.

In English it is known as Datura, Thorn Apple or Jimsonweed. The botanical name is Datura stramonium Linn., and the Bhavaprakash Nighantu also describes related species such as Datura metel, D. tatula and D. innoxia. Its Sanskrit names include Dhattura (Dhattura), Kanaka (Kanaka) and Unmatta (Unmatta).

You can recognise it by its spiny fruit capsules, which give it the name Thorn Apple. White and black varieties exist, and the white one is preferred medicinally. The plant is held sacred to Lord Shiva.

The key rule running through every classical source: datura is used only after purification (Shodhana), a specialised process carried out by trained practitioners. This page explains what the texts say about it so you can understand it, not so you can use it at home.

Everything below describes classical uses of purified datura (Shodhana), prepared and given by qualified practitioners. None of it is a reason to try the plant yourself. Its medicinal effects come from the same tropane alkaloids that make it dangerous.

Breathing and Asthma

The Bhavaprakash Nighantu records that smoke from the leaves was used for asthma, and that the plant was used in fumigation for respiratory disorders. Practitioners traditionally paired it with Ginger and Long Pepper (Pippali) for lung complaints.

Pain and Swelling

Datura is classed as a pain reliever (Vedanasthapana) and an anti-inflammatory (Shothahara). In classical practice it was applied externally: seed oil rubbed on painful joints, or a pain-relieving paste on joints and inflammatory conditions.

The Sharangadhara Samhita, Uttara Khanda, Chapter 11, describes a topical paste of datura with Castor (Eranda), Nirgundi, Punarnava (Varshabhu), Moringa (Shigru) and Mustard (Sarshapa).

This paste destroys Shlipada (elephantiasis/lymphedema) even when chronic and severe.

Sharangadhara Samhita, Uttara Khanda, Chapter 11: Lepa Vidhi

Skin Conditions

Classical texts describe external use in stubborn skin diseases. Datura leaves contain tropane alkaloids with anti-inflammatory and anti-itch (anti-pruritic) action, according to the Sharangadhara commentary.

Fever and Worms

The Bhavaprakash Nighantu also lists datura as antipyretic (Jvaraghna), used in chronic fevers, and as anthelmintic (Krimighna), acting against worms. These were internal uses, and internal preparations are described as limited and only after purification.

Do not prepare, smoke, eat or apply datura yourself. There is no safe home dose. Every classical source says it is used only after purification (Shodhana), and the Sahasra Yoga describes it as toxic, used after purification in external and limited internal preparations.

The table below shows how the classical texts used it, so you can recognise these forms if a practitioner mentions them. Dosing is deliberately left out.

Combinations practitioners use

Ayurvedic practitioners traditionally combine datura with Licorice (Yashtimadhu), which is said to help relieve its toxicity and its excessively dispersing nature. For lung disorders it is paired with Ginger and Long Pepper. These are practitioner decisions, not home recipes.

Datura is highly poisonous. Ayurveda does not soften this. It is classed as a poison (Visha) and a sub-poison (Upavisha) in the Sharangadhara Samhita, Madhyama Khanda, Chapter 12, in the same group as Arka, Snuhi, Langali and Oleander (Karavira).

What overdose looks like

The Bhavaprakash Nighantu warns that an excessive dose causes delirium, hallucinations and death. The texts also class it as intoxicating (Madakari). If anyone has swallowed, smoked or chewed any part of the plant, treat it as a poisoning emergency and get medical help immediately.

Why it is so dangerous

The plant contains tropane alkaloids, including hyoscyamine, atropine and hyoscine (also called scopolamine). The whole plant holds about 0.40% total alkaloids, and the seeds 0.2 to 0.45%. These compounds act powerfully on the nervous system.

Only after purification, only with a practitioner

Classical use depends on purification (Shodhana), a specialised process, and on a qualified practitioner who sets the form and dose. Never self-administer datura in any form, including smoking the leaves or rubbing on homemade oil.

Medications

Because of datura's action on the nervous system, it may exacerbate the effects of medications. Anyone on prescription drugs needs to tell their doctor and practitioner before any datura-containing preparation is considered.

Pregnancy

Datura is contraindicated in pregnancy. Do not use it if you are pregnant.

Legal status

In the UK its use is restricted under medicines legislation, which reflects how seriously regulators treat its toxicity.

Most people comparing datura are trying to understand where it sits among other powerful classical plants, or what it was combined with. Here is how it compares, using only what the classical texts say.

The common thread: datura is never the casual choice. Its classical uses for asthma, pain and skin conditions all assume purification and professional supervision.

For datura, the answer for every group is the same: not for self-use. The classical texts call it a poison (Visha) and allow it only after purification (Shodhana) under a qualified practitioner. Some groups need even more caution.

Pregnancy & Nursing

Datura is contraindicated in pregnancy. Our sources give no data on breastfeeding, and given its toxicity, it should be avoided while nursing too.

Children

There is no child use in our sources, and the risk of poisoning makes it unsuitable. The spiny fruits and seeds should be kept well away from children, and any suspected swallowing of the plant is a medical emergency.

Elderly

Older adults are more likely to be taking prescription medications, and datura's action on the nervous system may exacerbate the effects of medications. This is one more reason it must only ever be considered by a practitioner working with the person's doctor.

Athletes

Datura is classed as intoxicating (Madakari) and an excessive dose causes delirium, hallucinations and death. It has no place in a training or recovery routine.