Drug & supplement interaction

Marsh Labrador Tea + Simethicone

Simethicone brand names: Mylicon, Maalox Anti-Gas, Ovol, Mylanta Gas Max Strength.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Marsh Labrador Tea and Simethicone 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

Marsh Labrador Tea and Simethicone

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 Simethicone and Marsh Labrador Tea 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.

Marsh Labrador Tea safety at a glance

Marsh Labrador Tea overall Use caution The plant contains toxic grayanotoxins, so any internal use carries a risk of poisoning.
Pregnancy Likely Unsafe When used orally; avoid using. Marsh Labrador tea is considered to be a potential uterine stimulant and abortifacient. Read the full pregnancy detail
Breastfeeding Avoid Not enough safety data and it contains potentially toxic substances, so avoid use.

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 Simethicone and Marsh Labrador Tea? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Simethicone

Interactions in our licensed database are recorded against drug classes, not just single drug names. Simethicone is filed under a single classification — oral drugs. Marsh Labrador Tea has documented interactions with 1 drug class — the most serious being cns depressants (moderate) — and none of Simethicone’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

Marsh Labrador Tea Does Interact With Other Medications

Marsh Labrador Tea has 248 moderate known drug interactions in our database — Simethicone isn’t one of them. If you take anything else, check it against the full list below.

Moderate 248 No known interaction 2,582 (incl. Simethicone)
Taking anything else?

Check Another of Your Medications Against Marsh Labrador Tea

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

What to actually watch for

What Marsh Labrador Tea Itself Has Been Linked To

This is not an interaction — nothing below involves Simethicone. It is the side-effect record for Marsh Labrador Tea on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Marsh Labrador Tea, this list is the first place to look. One entry is worth acting on rather than waiting out — marked below.

  • Seizures Worth acting on Additional detail

    “Orally, large amounts of marsh Labrador tea can cause poisoning due to its ledol constituent (2). The essential oil of marsh Labrador tea can cause severe irritation of the gastrointestinal tract, vomiting, diarrhea, irritation and damage to the kidneys and urinary tract, heavy perspiration, myalgias, and arthralgias.”

    Marsh Labrador Tea · Natural Medicines adverse-effect record, reported in diarrhea.

    2 sources cited
    1. 2. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
    2. 97164. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed

    “Orally, ledol, a constituent of marsh Labrador tea essential oil, can cause central nervous system excitation in a dose-dependent manner. Small amounts of ledol can lead to mild stimulating effects similar to caffeine, while larger doses can lead to spasms, seizures, paralysis, and even death.”

    Marsh Labrador Tea · Natural Medicines adverse-effect record, reported in epilepsy.

    1 source cited
    1. 97164. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed
  • Sweating Additional detail

    Recorded for Marsh Labrador Tea in the same Natural Medicines adverse-effect record shown under Seizures above.

  • Diarrhea / Vomiting Additional detail

    “Orally, ledol, a constituent of the essential oil of marsh Labrador tea, can cause gastrointestinal irritation resulting in vomiting, gastroenteritis, and diarrhea.”

    Marsh Labrador Tea · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 97164. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed

Everything above comes from the Natural Medicines adverse-effect record for Marsh Labrador Tea — expand a row for the licensed statement it rests on. We haven’t matched Simethicone to its FDA label in our system yet, so we can’t compare its own side-effect list here — the leaflet that comes with your prescription is the authoritative list for Simethicone.

Special populations

Marsh Labrador Tea in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally; avoid using. Marsh Labrador tea is considered to be a potential uterine stimulant and abortifacient.

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

From our Q&A

Questions About Marsh Labrador Tea or Simethicone

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Marsh Labrador Tea or Simethicone, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Simethicone

This page covers Marsh Labrador Tea only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Simethicone page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Simethicone page

“Every interaction listed for simethicone (Mylicon, Maalox Anti-Gas, Ovol) involves how medicines behave in the gut, and one of them calls for real caution. Activated charcoal, the sole major-rated entry, adsorbs a wide range of drugs and can blunt their effect, which matters for a gas remedy that does all of its work inside the digesti…”

Reviewed by 2 · Jul 18, 2026

Open the Simethicone interaction page

How much people look this up

Where Marsh Labrador Tea and Simethicone 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 Marsh Labrador Tea
Steady interest

#1,264 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Simethicone
Steady interest

#2,041 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 Marsh Labrador Tea reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Marsh Labrador Tea and Simethicone records this page draws on were last updated July 11, 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 Marsh Labrador Tea

What is Marsh Labrador Tea?

Marsh Labrador Tea
  • Colds and respiratory complaints
  • Cough and congestion
  • Mild aches and joint discomfort
  • Topical relief of skin irritation, swelling, and insect bites
  • Traditional use as a diuretic

Marsh Labrador tea is a bog-growing shrub used in folk medicine for coughs, colds, and skin problems, but high-quality human evidence for any use is lacking. Because it contains grayanotoxins (andromedotoxin) that can be poisonous, it is not considered safe for routine use, and pregnant or breastfeeding people should avoid it.

Rhododendron tomentosum · Ericaceae · Leaves and flowering twigs (and an essential oil distilled from them) · Tea (infusion), essential oil, topical preparations

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

Marsh Labrador Tea: dosing

There is no established safe or standardized dose for Marsh Labrador tea. Because the plant naturally contains toxic grayanotoxins, even traditional preparations carry risk, and stronger or longer brews increase that risk.If you choose to use a commercial product, follow the directions on the label exactly and do not exceed them. Never assume that "natural" means harmless.

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

Read the full Marsh Labrador Tea monograph & all interactions
Medication

About Simethicone

What Is Simethicone Used For?

Brand names: Mylicon, Maalox Anti-Gas, Ovol, Mylanta Gas Max Strength

Simethicone relieves the uncomfortable pressure, bloating, and full or stuffed feeling that comes from trapped gas. Gas can build up after eating certain foods or from swallowing air.

Infant-specific products — including Mylicon Infants Gas Relief, Walgreens Infants Dye Free Gas Relief, and similar infant drops and suspensions — are used to relieve gas discomfort in babies frequently caused by air swallowing or certain formulas or foods.

Most-Reported Side Effects for Simethicone

From FAERS, the FDA’s public side-effect reporting system (8,245 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Chronic kidney disease 1,159 reports
Nausea 723 reports
Diarrhea 673 reports
Fatigue 644 reports
Acute kidney injury 633 reports
See full Simethicone drug information
Keep checking

Other Drugs & Marsh Labrador Tea

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

0Major
248Moderate
0Minor
2,581No known interaction
248 Moderate 2,581 No interaction
Moderate

248 interactions

Showing 60 of 248 moderate interactions — see all 248 on the Marsh Labrador Tea page.

No interaction 2,581 drugs checked — show the list

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

Showing the 60 most looked-up of 2,581 medications checked with no known interaction — see the full Marsh Labrador Tea list.

See the full Marsh Labrador Tea interactions page
See every supplement checked against Simethicone, ranked by severity
Evidence & sources

Marsh Labrador Tea References

The 3 references that drive our Marsh Labrador Tea 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. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed

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 Marsh Labrador Tea and Simethicone Together: Common Questions

Is it safe to take Marsh Labrador Tea with Simethicone?
We do not list a known interaction between Marsh Labrador Tea and Simethicone. 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 Marsh Labrador Tea and Simethicone combination checked?
Interactions in our licensed database are recorded against drug classes. Simethicone is filed under 1 classification, and Marsh Labrador Tea has documented interactions with 1 drug class — none of Simethicone'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 Marsh Labrador Tea interact with any other medications?
Yes. Marsh Labrador Tea has 248 documented drug interactions in our database — Simethicone 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 Simethicone interact with any supplements?
Yes. Simethicone has documented interactions with 17 supplements in our database — Marsh Labrador Tea is not one of them. The Simethicone 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

Marsh Labrador Tea monograph Uses, safety profile, and every drug interaction in one place Simethicone drug information The full plain-English guide to this medication Simethicone supplement interactions Every supplement checked against Simethicone, 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 Simethicone and Marsh Labrador Tea?

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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.