Drug & supplement interaction

Masterwort + Propiomazine

Propiomazine brand name: Largon.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Masterwort and Propiomazine 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.

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Interaction report

Masterwort and Propiomazine

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 Propiomazine and Masterwort 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.

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.

Masterwort safety at a glance

Masterwort overall Use caution Limited safety data exist, and the plant can cause sun-triggered skin reactions.
Pregnancy Avoid Not enough safety information; best avoided during pregnancy.
Breastfeeding Avoid No reliable safety data, so avoid while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Propiomazine and Masterwort? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Propiomazine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Propiomazine is filed under 2 classifications — cns depressants, oral drugs. Masterwort has documented interactions with 1 drug class — the most serious being photosensitizing drugs (moderate) — and none of Propiomazine’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Masterwort Does Interact With Other Medications

Masterwort has 335 moderate known drug interactions in our database — Propiomazine isn’t one of them. If you take anything else, check it against the full list below.

Taking anything else?

Check Another of Your Medications Against Masterwort

Covers the 2,830 medications we’ve checked against Masterwort. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Propiomazine

This page covers Masterwort only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Propiomazine page lists 95 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).

By severity: 7 major · 73 moderate · 15 minor.

From our pharmacist’s overview on the Propiomazine page

“Propiomazine (Largon) is prescribed to sedate, and that is exactly why these interactions deserve genuine care. Of the 95 supplement and herbal ingredients with an interaction on file, 78 are themselves CNS depressants, meaning they pile drowsiness onto a drug whose whole job is drowsiness.”

Reviewed by 2 · Jul 18, 2026

Open the Propiomazine interaction page

How much people look this up

Where Masterwort and Propiomazine 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 Masterwort
Top half

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

29 days ago today
Medication Propiomazine
Steady interest

#1,729 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 Masterwort reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Masterwort and Propiomazine records this page draws on were last updated June 20, 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 Masterwort

What is Masterwort?

Masterwort
  • Digestive upset
  • Mild anxiety and tension
  • Skin complaints
  • Respiratory and cough relief
  • Traditional tonic

Masterwort (Heracleum sphondylium), a plant in the carrot family, has a long folk-medicine history for digestion, nerves, and skin. Modern scientific evidence to support these uses is very limited, and the plant can cause skin reactions to sunlight, so use it cautiously and talk with your pharmacist or doctor first.

Heracleum sphondylium · Apiaceae · Root, leaves, seeds, and aerial parts · Tea, tincture, dried herb, essential oil

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

Masterwort: dosing

There is no standardized, well-established dose for masterwort. Traditional preparations vary widely, and product strengths are not consistent.If you choose to use a commercial product, follow the directions on the label and do not exceed the suggested amount.

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

Read the full Masterwort monograph & all interactions
Keep checking

Other Drugs & Masterwort

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

0Major
335Moderate
0Minor
2,494No known interaction
Moderate

335 interactions

Showing 60 of 335 moderate interactions — see all 335 on the Masterwort page.

No interaction 2,494 drugs checked — show the list
Evidence & sources

Masterwort References

The 1 references that drive our Masterwort 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. 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 Masterwort and Propiomazine Together: Common Questions

Is it safe to take Masterwort with Propiomazine?
We do not list a known interaction between Masterwort and Propiomazine. 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.
How was the Masterwort and Propiomazine combination checked?
Interactions in our licensed database are recorded against drug classes. Propiomazine is filed under 2 classifications, and Masterwort has documented interactions with 1 drug class — none of Propiomazine's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Masterwort interact with any other medications?
Yes. Masterwort has 335 documented drug interactions in our database — Propiomazine is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Propiomazine interact with any supplements?
Yes. Propiomazine has documented interactions with 95 supplements in our database — Masterwort is not one of them. The Propiomazine interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Propiomazine and Masterwort?

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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.