Poinsettia Drug Interactions, Uses, Safety & More
What is this page for?
First and foremost: how Poinsettia interacts with medications. The heart of this page is the interaction list — every drug Poinsettia is known to interact with, and how serious each one is.
But these pages have grown well beyond that into a full monograph — what Poinsettia 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 Poinsettia against your medication
Add one medicationDrugs that interact with Poinsettia
0 medications have a known interaction with Poinsettia, graded by severity. Select any drug for the full evidence-based detail.
We don’t currently list any known drug interactions for Poinsettia. 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 Poinsettia combination — clinical detail, likelihood, evidence level, and citations.
- Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Poinsettia: Uses, Safety & Side Effects
Poinsettia is best known as a popular holiday ornamental plant, not a proven dietary supplement, and there is no reliable evidence that it works for any health condition. While its toxicity is often exaggerated, the plant and its milky sap can cause stomach upset and skin or eye irritation, so it is not recommended for medicinal use. If you are considering any herbal product, talk with your pharmacist or doctor first.
- Scientific name
- Euphorbia pulcherrima
- Family
- Euphorbiaceae
- Part used
- Leaves, stems, and milky sap (latex); not a true medicinal supplement
- Common forms
- Rarely used as a supplement; historically the plant parts and sap have been used in traditional folk preparations
- Traditional folk skin remedies
- Traditional use as a topical poultice
- Folk use for fever
- Decorative ornamental plant (most common use today)
Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.
Not intended for internal use; the sap can irritate skin, eyes, and the digestive tract.
When used orally or topically; avoid using.
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
Poinsettia (Euphorbia pulcherrima) is a shrub in the spurge family that is native to Mexico and Central America. It is famous around the world as a holiday decoration because of its bright red, pink, or white colored leaves (called bracts), which are often mistaken for flowers.
Although a few traditional folk practices have used parts of the plant or its milky sap, poinsettia is not a commonly used or well-studied dietary supplement. Today it is grown almost entirely as an ornamental houseplant. It is not sold as a mainstream herbal product, and there are no standardized supplement forms.
Uses & effectiveness
There is no reliable scientific evidence that poinsettia is effective for any health condition. Any uses come from local or traditional folk practices rather than from clinical research.
Historically, some cultures have used parts of the plant or its sap in topical preparations for skin problems or as a poultice, and in a few places it was used for fever. These uses have not been confirmed by quality human studies. Because the evidence is essentially absent, poinsettia should not be relied on to treat or prevent any illness.
How it works
Poinsettia, like other plants in the spurge (Euphorbia) family, contains a milky sap called latex. This sap holds compounds such as diterpene esters and other irritant substances that can affect skin and mucous membranes.
There is no established medicinal mechanism for poinsettia. Any biological effects described are based mainly on laboratory observations of its irritant compounds, not on proof that the plant provides a health benefit in people.
Safety & precautions
Poinsettia has a reputation for being deadly poisonous, but this is largely a myth. Most reported exposures, especially in children and pets, cause only mild symptoms. Still, this does not make the plant safe to eat or use as medicine.
The milky sap can irritate the skin and is especially uncomfortable if it gets in the eyes. People with latex allergy may be more sensitive to it. Swallowing leaves or sap can cause stomach upset.
Because there is no safety information for internal use, pregnant and breastfeeding people should avoid poinsettia entirely. Keep the plant out of reach of children and pets, and contact a poison control center if a large amount is swallowed or if symptoms are severe.
Side effects
Reported effects are usually mild and may include:
- Nausea, vomiting, or stomach upset after swallowing plant parts
- Skin redness, itching, or rash from contact with the sap
- Eye irritation, redness, or watering if sap reaches the eyes
- Mouth or throat irritation
Serious reactions are uncommon, but people with sensitive skin or latex allergy may react more strongly. Seek medical care if symptoms are severe or do not go away.
Poinsettia: Reported Adverse Effects
Documented safety reports on Poinsettia from the evidence-graded Natural Medicines (TRC Healthcare) database, shown word-for-word from the licensed record.
Orally, there is limited reliable information available about the adverse effects of poinsettia; a thorough evaluation of safety outcomes has not been conducted. Topically, poinsettia can cause serious skin reactions when applied as medicine.
Most Common Adverse Effects:
Topically: Local irritation.
Serious Adverse Effects (Rare):
Topically: Keratoconjunctivitis, mucosal burns.
Burns Dermatologic
Topically, poinsettia can cause local irritation, contact dermatitis, mucosal burns, and keratoconjunctivitis in some people.
Diarrhea Gastrointestinal
Orally, poinsettia can cause gastrointestinal irritation, including nausea, vomiting, and diarrhea.
Skin irritation Other
The American Association of Poison Control Centers reported 22,793 cases of exposure to poinsettia over an 8-year period. Almost all exposures were oral and the rest topical. Across all exposures, no fatalities were reported and 92.4% of patients had no adverse effects at all. The rest were minor and mainly related to skin irritation.
Adverse-effects data: Natural Medicines, Therapeutic Research Center
Dosing
There is no established or recommended dose for poinsettia because it is not a recognized dietary supplement and is not intended for internal use. No standardized products exist, and safe amounts are unknown.
Given the lack of evidence and the risk of irritation, poinsettia should not be taken as a remedy. If you are interested in herbal options for a health concern, speak with your pharmacist or doctor about safer, better-studied choices.
Poinsettia & Pregnancy
Poinsettia & Breastfeeding
© 2026 Therapeutic Research Center
Pregnancy & lactation ratings: Natural Medicines, Therapeutic Research Center
References & further reading
The 4 references that drive our Poinsettia 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.
- Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
- Krenzelok EP, Jacobsen TD, Aronis JM. Poinsettia exposures have good outcomes...just as we thought. Am J Emerg Med 1996;14:671-4. PubMed
- Petersen DD. Common plant toxicology: a comparison of national and southwest Ohio data trends on plant poisonings in the 21st century. Toxicol Appl Pharmacol. 2011;254(2):148-53. PubMed
- Evens ZN, Stellpflug SJ. Holiday plants with toxic misconceptions. West J Emerg Med. 2012;13(6):538-542. PubMed
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
Poinsettia: Common Questions
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Where does this Poinsettia interaction information come from?
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Is Poinsettia safe during pregnancy or breastfeeding?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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