Euphorbia Hirta Drug Interactions, Uses, Safety & More
What is this page for?
First and foremost: how Euphorbia Hirta interacts with medications. The heart of this page is the interaction list — every drug Euphorbia Hirta is known to interact with, and how serious each one is.
But these pages have grown well beyond that into a full monograph — what Euphorbia Hirta is, what people use it for and how strong the evidence is, its safety and side effects, and answers to the questions we’re asked most — written and reviewed by the clinical staff at HelloPharmacist. It’s educational information from our licensed clinical databases, not medical advice, and we don’t sell or endorse products. Our editorial policy
Check Euphorbia Hirta against your medication
Add one medicationDrugs that interact with Euphorbia Hirta
0 medications have a known interaction with Euphorbia Hirta, graded by severity. Select any drug for the full evidence-based detail.
We don’t currently list any known drug interactions for Euphorbia Hirta. This doesn’t guarantee none exist — always confirm with your pharmacist before combining supplements with your medications.
What Severity, Likelihood & Evidence Mean
Severity — How Serious It Can Be
- Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
- Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
- Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
- No known interaction. Checked against our sources with nothing documented — not the same as proven safety.
Likelihood — How Well It’s Documented
- Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
- Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
- Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
- Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Where This Data Comes From
- Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
- Each drug listed above links to the full report for that exact Euphorbia Hirta combination — clinical detail, likelihood, evidence level, and citations.
- Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Euphorbia Hirta: Uses, Safety & Side Effects
Euphorbia hirta is a small tropical weed used in traditional medicine for breathing problems, diarrhea, and skin issues. Most of its supposed benefits come from laboratory or animal studies rather than solid human trials, so its true effectiveness in people is unclear. Because its safety is not well studied, talk to a pharmacist or doctor before using it.
- Scientific name
- Euphorbia hirta
- Family
- Euphorbiaceae
- Part used
- Whole plant (leaves, stems, flowers, and latex)
- Common forms
- Dried herb, tea/decoction, tincture, capsules, and topical extracts
- Respiratory complaints like asthma and cough
- Diarrhea and digestive upset
- Skin wounds and warts
- Worms and other parasites
- General antimicrobial use
Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.
Human safety data are very limited, so use carefully and under professional guidance.
When used orally; avoid using. Euphorbia hirta is reported to cause smooth muscle contraction and relaxation.
Read the full pregnancy detailWhen used orally; avoid using. Euphorbia hirta is reported to cause smooth muscle contraction and relaxation.
Read the full breastfeeding detailPregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Overview
Euphorbia hirta is a small, low-growing weed that is common in warm, tropical, and subtropical parts of the world, including Asia, Africa, and the Americas. It often grows along roadsides, in gardens, and in waste ground. The plant has hairy stems and small leaves, and it releases a milky white sap (latex) when broken.
It has a long history in traditional and folk medicine systems. People have used the whole plant—prepared as teas, juices, or topical pastes—for breathing problems, stomach troubles, and skin conditions. Today it is sold in some places as a dried herb, tincture, or capsule.
While it is widely used in traditional practice, it is important to know that traditional use does not prove that something works or that it is safe.
Uses & effectiveness
People commonly use Euphorbia hirta for asthma, cough, and other breathing problems, for diarrhea and other digestive upset, for skin wounds and warts, and as a general antimicrobial or anti-parasitic remedy.
The honest summary is that strong human evidence is lacking for all of these uses. Most of the research is from laboratory (test tube) studies or animal experiments. These early studies suggest the plant may have antibacterial, anti-inflammatory, and antioxidant activity, but results in a dish or in animals often do not carry over to real benefits in people.
Well-designed clinical trials in humans are scarce. Because of this, no use of Euphorbia hirta can be called proven. If you are considering it for a health condition, view it as experimental and discuss it with a healthcare professional first.
How it works
Euphorbia hirta contains a mix of natural compounds, including flavonoids (such as quercetin), tannins, terpenoids, and other plant chemicals. Researchers believe these compounds may be responsible for the effects seen in laboratory studies.
Proposed actions, mostly based on lab and animal research, include fighting certain bacteria and fungi, calming inflammation, relaxing airway or smooth muscle, and acting as an antioxidant. Some studies suggest it may slow gut movement, which could explain its traditional use for diarrhea.
It is important to stress that these are proposed mechanisms. Showing an effect in a test tube does not mean the same thing happens safely or effectively in the human body.
Safety & precautions
The safety of Euphorbia hirta in humans has not been well studied. As with many plants in the Euphorbia family, the milky latex can irritate the skin, eyes, and mucous membranes, and getting it in the eyes can be especially painful and harmful.
People with liver or kidney problems, children, and older adults should be especially cautious, since there is little information on safe amounts. Anyone with a known allergy to plants in the spurge (Euphorbiaceae) family should avoid it.
Pregnancy and breastfeeding: Avoid Euphorbia hirta if you are pregnant, since it has traditionally been used to stimulate menstruation and there is no reliable safety data. It is also best avoided while breastfeeding because we do not know whether its compounds pass into breast milk or affect a nursing baby.
Always tell your pharmacist or doctor about any herbal product you are taking, and stop use and seek care if you notice a bad reaction.
Side effects
Because human studies are limited, the full side effect profile is not well known. Reported or expected effects include stomach upset, nausea, and vomiting, especially with larger amounts taken by mouth.
The plant's latex can cause skin irritation, rash, or eye irritation on contact. Allergic reactions are possible in sensitive people.
If you experience severe stomach pain, vomiting, a spreading rash, trouble breathing, or any eye injury from the sap, stop use and seek medical attention.
Euphorbia Hirta: Reported Adverse Effects
Documented safety reports on Euphorbia Hirta from the evidence-graded Natural Medicines (TRC Healthcare) database, shown word-for-word from the licensed record.
There is currently a limited amount of information available about the adverse effects of Euphorbia hirta. Orally, Euphorbia hirta may cause nausea and vomiting. Topically, skin contact with fresh Euphorbia hirta can cause irritation or contact dermatitis.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
Dermatitis Dermatologic
Topically, skin contact with fresh Euphorbia hirta can cause irritation or contact dermatitis.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
Nausea and vomiting Gastrointestinal
Orally, Euphorbia hirta may cause nausea and vomiting.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
Adverse-effects data: Natural Medicines, Therapeutic Research Center
Dosing
There is no standardized or well-established dose for Euphorbia hirta. Traditional preparations vary widely depending on the form (tea, juice, tincture, or capsule) and the region.
Because product strength and purity can differ a lot between brands, follow the directions on the product label and do not exceed them. There is no good evidence to support any specific milligram amount.
The safest approach is to check with a pharmacist or doctor before starting, especially if you take other medicines or have a health condition.
Euphorbia Hirta & Pregnancy
Euphorbia Hirta & Breastfeeding
© 2026 Therapeutic Research Center
Pregnancy & lactation ratings: Natural Medicines, Therapeutic Research Center
References & further reading
The 3 references that drive our Euphorbia Hirta monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Euphorbia Hirta: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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