Drug & supplement interaction

Euphorbia Hirta + Lorlatinib

Lorlatinib brand name: Lorbrena.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Euphorbia Hirta and Lorlatinib in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Euphorbia Hirta and Lorlatinib

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Lorlatinib and Euphorbia Hirta in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Euphorbia Hirta at all — not against Lorlatinib, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Euphorbia Hirta safety at a glance

Euphorbia Hirta overall Use caution Human safety data are very limited, so use carefully and under professional guidance.
Pregnancy Possibly Unsafe When used orally; avoid using. Euphorbia hirta is reported to cause smooth muscle contraction and relaxation. Read the full pregnancy detail
Breastfeeding Possibly Unsafe When used orally; avoid using. Euphorbia hirta is reported to cause smooth muscle contraction and relaxation. Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Lorlatinib and Euphorbia Hirta? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Euphorbia Hirta and Lorlatinib May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • A skin rash Additional detail

    Euphorbia Hirta

    “There is currently a limited amount of information available about the adverse effects of Euphorbia hirta. Orally, Euphorbia hirta may cause nausea and vomiting (12). Topically, skin contact with fresh Euphorbia hirta can cause irritation or contact dermatitis (19).”

    Euphorbia Hirta · Natural Medicines adverse-effect record, reported in dermatitis.

    2 sources cited
    1. 12. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
    2. 19. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

    “Topically, skin contact with fresh Euphorbia hirta can cause irritation or contact dermatitis (19).”

    Euphorbia Hirta · Natural Medicines adverse-effect record, reported in dermatitis.

    1 source cited
    1. 19. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

    Lorlatinib

    Listed in the ADVERSE REACTIONS section of the FDA label for Lorlatinib. Read the label on DailyMed ›

  • Vomiting / Nausea Additional detail

    Euphorbia Hirta

    “Orally, Euphorbia hirta may cause nausea and vomiting (12).”

    Euphorbia Hirta · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 12. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.

    Lorlatinib

    Listed in the ADVERSE REACTIONS section of the FDA label for Lorlatinib. Read the label on DailyMed ›

Effects for Lorlatinib come from the ADVERSE REACTIONS section of its FDA label; effects for Euphorbia Hirta come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 6,977 voluntary FDA FAERS reports for Lorlatinib that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Euphorbia Hirta in Pregnancy & Breastfeeding

Pregnancy And Lactation Possibly Unsafe

When used orally; avoid using. Euphorbia hirta is reported to cause smooth muscle contraction and relaxation.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

Everything else you take

See Every Supplement That Interacts With Lorlatinib

This page covers Euphorbia Hirta only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lorlatinib page lists 153 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).

By severity: 3 major · 110 moderate · 40 minor.

From our pharmacist’s overview on the Lorlatinib page

“Lorlatinib (Lorbrena) treats ALK-positive lung cancer, and keeping its blood level steady is central to keeping the cancer controlled, so I treat this list with genuine vigilance. Nearly all 153 interactions on file run through CYP3A4, the enzyme that clears the drug.”

Reviewed by 2 · Jul 18, 2026

Open the Lorlatinib interaction page

How much people look this up

Where Euphorbia Hirta and Lorlatinib Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Euphorbia Hirta
Steady interest

#1,061 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Lorlatinib
Steady interest

#2,141 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Euphorbia Hirta reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Euphorbia Hirta and Lorlatinib records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Euphorbia Hirta

What is Euphorbia Hirta?

  • Respiratory complaints like asthma and cough
  • Diarrhea and digestive upset
  • Skin wounds and warts
  • Worms and other parasites
  • General antimicrobial use

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.

Euphorbia hirta · Euphorbiaceae · Whole plant (leaves, stems, flowers, and latex) · Dried herb, tea/decoction, tincture, capsules, and topical extracts

An interaction check asks whether these two react with each other — it does not ask whether Euphorbia Hirta is a good idea for someone in your situation. Here is what our Euphorbia Hirta record says about it on its own.

Euphorbia Hirta: 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.

From our Euphorbia Hirta monograph — the full record covers uses, side effects and every documented interaction.

Read the full Euphorbia Hirta monograph & all interactions
Medication

About Lorlatinib

What Is Lorlatinib Used For?

Brand name: Lorbrena

Lorbrena (lorlatinib) is used to treat adults with metastatic non-small cell lung cancer (NSCLC) — meaning lung cancer that has spread — when lab testing confirms the tumor is ALK-positive (has a specific gene change that drives cancer growth). Patients must be tested with an FDA-approved diagnostic test before starting treatment.

Lorbrena has been studied in patients who have not yet received treatment for advanced disease, as well as in patients whose cancer progressed on other ALK-targeting medicines.

Most-Reported Side Effects for Lorlatinib

From FAERS, the FDA’s public side-effect reporting system (6,977 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Neoplasm progression 621 reports
Hallucination 404 reports
Weight increased 399 reports
Blood cholesterol increased 348 reports
Dyspnea 270 reports
See full Lorlatinib drug information
Keep checking

Other Drugs & Euphorbia Hirta

Browse every other medication we’ve checked against Euphorbia Hirta — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Euphorbia Hirta against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Euphorbia Hirta list.

See the full Euphorbia Hirta interactions page
See every supplement checked against Lorlatinib, ranked by severity
Evidence & sources

Euphorbia Hirta References

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.

  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Euphorbia Hirta and Lorlatinib Together: Common Questions

Is it safe to take Euphorbia Hirta with Lorlatinib?
We do not list a known interaction between Euphorbia Hirta and Lorlatinib. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Euphorbia Hirta and Lorlatinib have any of the same side effects?
Yes — our sources link each of them separately to 3 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Does Lorlatinib interact with any supplements?
Yes. Lorlatinib has documented interactions with 153 supplements in our database — Euphorbia Hirta is not one of them. The Lorlatinib interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Euphorbia Hirta monograph Uses, safety profile, and every drug interaction in one place Lorlatinib drug information The full plain-English guide to this medication Lorlatinib supplement interactions Every supplement checked against Lorlatinib, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Lorlatinib and Euphorbia Hirta?

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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.