Ummetta (Datura metel): Uses, Evidence and Safety

Ummetta (Datura metel): Traditional Medicine, Evidence and Safety

Ummetta is a Telugu name associated with Datura metel, a plant in the nightshade family (Solanaceae). The plant has a long history in traditional Indian medicine and other traditional medical systems, but it is very different from an ordinary culinary herb or low-risk household remedy.

The reason is its chemistry. Datura plants contain potent tropane alkaloids, including atropine, hyoscyamine and scopolamine. These compounds affect the nervous system and can produce a serious anticholinergic poisoning syndrome when exposure is excessive or inappropriate.

That creates an important distinction:

Ummetta can be historically important in traditional medicine without being appropriate for unsupervised home treatment.

This article explains what is known about the plant, how to interpret its traditional uses, what modern research can and cannot tell us, and why safety has to be considered before any medicinal claim.

What Is Ummetta?

Ummetta is a regional name associated with Datura metel. The 2026 Siddha Pharmacopoeia of India lists Telugu names including Ummettha and Ummetta for Datura metel fruit. Kew's Medicinal Plant Names Services also records “ummetta” in medicinal plant sources associated with Datura metel.

The plant produces large trumpet-shaped flowers and a spiny fruit containing numerous seeds. Different forms and varieties can vary in appearance.

This matters because common names are not always sufficient for reliable botanical identification. Some similar regional names are associated with more than one Datura species. For medicinal or toxicological purposes, relying on a local name alone can therefore be unsafe.

Why Botanical Identification Matters

A plant should not be identified for medicinal use solely from a photograph, common name or description found online.

The Datura genus contains several species, and medicinal literature has historically used overlapping names. Kew's database, for example, shows that some names related to “ummatta” can be associated with both Datura metel and Datura stramonium.

For an ordinary edible plant, uncertainty in identification may be inconvenient. With a poisonous plant, it can become a safety issue.

For that reason, this article uses Ummetta specifically in the context of Datura metel rather than treating every plant locally called Dhatura, Ummetta or a similar name as automatically identical.

What Traditional Medicine Says About Ummetta

Historical medical and ethnobotanical literature describes Datura metel in connection with several traditional applications. Reported uses include respiratory complaints, pain, skin conditions and other ailments. A detailed review of D. metel documents traditional uses across several regions and medical traditions.

Traditional records are valuable for understanding:

• how medicinal plants were historically selected;

• which plant parts were traditionally used;

• how different cultures understood the plant;

• how plant-based preparations became part of medical traditions.

But traditional documentation answers a historical question:

Was this plant used medicinally?

It does not automatically answer the modern clinical question:

Does this plant safely and effectively treat a particular disease in humans?

That distinction is particularly important with Datura because the same biological activity that makes its constituents pharmacologically interesting can also make uncontrolled exposure dangerous.

Traditional Use Is Not the Same as Clinical Evidence

Evidence about a medicinal plant exists on several different levels.

Traditional evidence

Historical use can establish that a plant was used for a particular purpose within a medical tradition.

It does not establish modern effectiveness by itself.

Laboratory research

Researchers can test plant extracts or isolated compounds against cells, microorganisms or biochemical targets.

Such experiments can help identify potentially interesting biological effects, but they do not demonstrate that the whole plant will produce the same effect in people.

Animal studies

Animal experiments can provide information about pharmacology, toxicity and possible biological mechanisms.

They still cannot establish a safe or effective human treatment on their own.

Human clinical research

Human studies are more directly relevant to questions of effectiveness and safety, but their design matters. A small, uncontrolled or open-label study provides different evidence from a well-designed randomized controlled trial.

This distinction is important because reviews of D. metel contain numerous experimental findings involving antioxidant, anti-inflammatory, antimicrobial, analgesic and other biological activities. Much of that research remains preclinical.

Therefore, a laboratory finding should not be rewritten as “Ummetta treats inflammation,” and an animal finding should not be turned into a recommended human treatment.

What Modern Research Has Actually Studied

Scientific research on Datura metel has examined its phytochemistry, pharmacology and toxicology.

Researchers have identified numerous plant constituents, including tropane alkaloids and other classes of phytochemicals. Studies have also investigated biological effects in laboratory and animal models.

This research is scientifically relevant because plant compounds can sometimes become starting points for pharmaceutical research.

However, there is a major difference between:

“A compound from a plant has pharmacological activity”

and

“A person should use the plant as a medicine.”

The first may be a legitimate research observation. The second requires evidence about a particular preparation, dose, indication, quality, interactions and patient population.

That evidence cannot be assumed from laboratory activity.

Why the Chemistry Changes the Safety Question

The most important safety issue with Datura is its tropane alkaloid content.

Compounds such as atropine, hyoscyamine and scopolamine have anticholinergic effects. Related compounds have legitimate pharmaceutical uses when manufactured, standardized and administered under appropriate medical conditions.

That does not make raw Datura equivalent to a pharmaceutical medicine.

A medicinal plant can contain pharmacologically active chemicals while also having unpredictable concentrations. The amount present can vary with the plant material, plant part, growing conditions and preparation.

Research reviews describe Datura as a poisonous plant capable of causing severe anticholinergic effects.

This is why “it contains a medically useful compound” is not a sufficient reason to consume the plant.

Why a Traditional Preparation Is Not the Same as a Home Remedy

Traditional medical systems may use specific plant materials within defined preparations and professional contexts.

That history should be described accurately rather than dismissed. At the same time, it should not be transformed into a DIY recipe.

A traditional formulation and a handful of leaves, seeds, flowers or a homemade extract are not necessarily equivalent products.

Important variables include:

• botanical identity;

• plant part;

• preparation;

• processing;

• concentration;

• storage;

• interactions with other substances;

• the health status of the person receiving it.

There is also a broader problem with herbal medicines: contamination and accidental substitution can expose people to tropane alkaloids unexpectedly. Published toxicology literature has documented poisoning associated with contamination and substitution involving Datura material.

Therefore, traditional history should not be interpreted as permission to collect the plant and prepare it at home.

Why a Home Dose Should Not Be Given

Readers sometimes search for a number of seeds, leaves, grams or drops that supposedly represents a safe amount.

That is not an appropriate way to approach Datura metel.

A universal home dose would imply a degree of predictability that raw plant material does not necessarily provide. Even if a quantity were reported in an historical or experimental source, it would not automatically establish safety for another plant sample, preparation or individual.

For the same reason, this article does not provide instructions for:

• preparing a tea;

• making an extract;

• producing an oil or paste;

• smoking the plant;

• calculating a medicinal dose;

• processing or “detoxifying” the plant at home.

The absence of a home dosage recommendation is therefore a safety decision, not an omission.

What Can Datura Poisoning Look Like?

Excessive exposure to Datura can produce an anticholinergic toxidrome.

Possible symptoms include:

• dry mouth;

• dilated pupils;

• blurred vision;

• rapid heartbeat;

• flushed or dry skin;

• difficulty urinating;

• agitation;

• confusion;

• delirium;

• hallucinations;

• severe drowsiness;

• seizures;

• loss of consciousness.

Severe poisoning can become life-threatening. Reviews of Datura toxicity describe neurological, cardiovascular and other systemic complications.

The important practical point is that someone experiencing confusion or hallucinations after suspected exposure should not be assumed to be experiencing a harmless “herbal effect.”

Those symptoms can indicate poisoning.

What Should You Do After Accidental Exposure?

If someone accidentally eats Datura or a product suspected of containing it, do not wait for severe symptoms to appear.

In India, the National Poisons Information Centre at AIIMS advises people not to wait for the victim to become sick and not to treat the person themselves. Its current information lists the 24-hour toll-free number 1800 116 117.

Seek urgent medical or poison-information assistance.

If possible, keep information about the suspected plant or product available for healthcare professionals. Useful information can include:

• what was exposed;

• approximately when exposure occurred;

• whether the material was a plant, preparation or commercial product;

• packaging or labels, if available;

• symptoms that have appeared.

Do not attempt to counteract poisoning with another herb or food.

Do not deliberately induce vomiting unless a medical professional or poison-information service specifically instructs you to do so.

Who Should Not Experiment With Ummetta?

Because of its toxicity and the lack of a standardized home-use approach, Datura metel should not be used as a self-care remedy.

Extra caution is particularly important for:

Children

Children should not be given Datura preparations as a home remedy. Accidental ingestion should be treated seriously.

Pregnancy and breastfeeding

Medicinal self-use is inappropriate because safety cannot be assumed and exposure to potent pharmacologically active compounds can have consequences for both the individual and, potentially, the developing or nursing child.

Older adults and people taking medicines

The consequences of anticholinergic effects may be more concerning in people with existing medical conditions or multiple medications.

People with chronic medical conditions

Someone with a serious respiratory, neurological, cardiovascular, eye or urinary condition should not attempt to substitute Datura for appropriate medical care.

What About Asthma, Pain or Skin Problems?

Traditional literature includes respiratory, pain-related and skin applications for Datura species.

That historical information is worth recording, but it should not be converted into modern treatment advice.

Asthma

Breathing problems need an appropriate diagnosis and treatment plan. Datura should not replace prescribed asthma treatment.

Severe breathlessness, blue or gray lips, inability to speak normally because of breathlessness or rapidly worsening breathing requires urgent medical care.

Persistent pain

Pain can result from injury, arthritis, nerve disorders, infection and many other causes. A poisonous plant is not an appropriate substitute for determining why significant or persistent pain is occurring.

Skin problems

Rashes, wounds, infections and persistent itching can have very different causes. A homemade Datura preparation should not be used simply because historical sources describe topical applications.

How to Read “Healing Power” Claims About Ummetta

A useful way to evaluate a claim is to ask five questions:

1. What exactly was studied?

Was it the whole plant, a leaf extract, an isolated chemical, or a pharmaceutical compound?

2. Where was it studied?

Was the evidence from a laboratory, animal experiment or human clinical study?

3. What condition was actually studied?

A biological effect in cells does not establish treatment of a human disease.

4. Was the preparation standardized?

Raw plant material and a standardized pharmaceutical product are not automatically equivalent.

5. What are the risks?

For Datura, toxicity is not a minor side issue. It is central to the interpretation of any proposed medicinal use.

This framework is more useful than simply counting how many “benefits” have been reported.

Questions to Discuss With a Healthcare Professional

If someone is considering a traditional Datura preparation, useful questions include:

• What is the exact botanical identity?

• What is the intended purpose of the preparation?

• Is there reliable human evidence for that purpose?

• Is there a safer evidence-based treatment?

• Could it interact with current medicines?

• What symptoms would indicate an adverse reaction?

• Is the proposed preparation standardized and quality controlled?

These questions help preserve respect for traditional medical knowledge while applying modern evidence and safety standards.

Key Takeaways

• Ummetta is associated with Datura metel, including in Indian medicinal references.

• The plant has a documented history of traditional medicinal use.

• Traditional use does not by itself establish modern clinical effectiveness.

• Modern research includes substantial laboratory and animal investigation, but experimental findings should not automatically become treatment claims.

• Tropane alkaloids give Datura important pharmacological effects but also create a significant poisoning risk.

• Raw plant material and homemade preparations should not be treated as equivalent to standardized medicines.

• A universal home-use dose should not be calculated from internet instructions.

• Datura should not replace established treatment for asthma, persistent pain, skin disease or other medical conditions.

• Suspected poisoning requires prompt professional assistance rather than home treatment.

• In India, AIIMS National Poisons Information Centre provides 24-hour poison-information assistance at 1800 116 117.

Medical Disclaimer

This article is for general educational information and is not a substitute for diagnosis, treatment or individualized medical advice.

Datura metel contains potent pharmacologically active compounds and can cause serious poisoning. Do not use raw Datura plant material or homemade preparations as a self-treatment. Do not use this information to calculate a dose or prepare an extract.

If accidental exposure is suspected, seek urgent medical assistance or contact an appropriate poison-information service. In India, the AIIMS National Poisons Information Centre lists the 24-hour toll-free number 1800 116 117.

Related Articles: 

Ummetta, commonly associated with Datura species, has a long history of traditional use, but it is important to distinguish traditional practices from modern clinical evidence. For a broader overview of medicinal plants used in Ayurveda, see our guide to Ayurvedic medicinal herbs.

Datura is one example of the many botanicals discussed in Indian traditional medicine. For a wider overview of medicinal plants and trees, see our guide to Ayurvedic medicinal trees.

Traditional herbal practices may involve different parts of a plant, but their chemical composition and safety can vary considerably. For a broader discussion of plant parts used traditionally, see our guide to Ayurvedic leaves, flowers and bark.

External Resources: 

For detailed scientific information on the traditional uses, phytochemicals, biological research and toxicological profile of Datura metel, see this PubMed-indexed review of Datura metel.

For a broader scientific review covering the botany, traditional uses, phytochemistry, pharmacology and toxicity of the Datura genus, see this PubMed review of Datura species.