Drug & supplement interaction

American Mistletoe + Glimepiride

Glimepiride brand name: Amaryl.

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 American Mistletoe and Glimepiride 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

American Mistletoe and Glimepiride

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 Glimepiride and American Mistletoe 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.

American Mistletoe safety at a glance

American Mistletoe overall Avoid American mistletoe contains toxic compounds and is not recommended for medicinal use.
Pregnancy Likely Unsafe When used orally. American mistletoe is considered an abortifacient. Read the full pregnancy detail
Breastfeeding Likely Unsafe When used orally; avoid using. 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 Glimepiride and American Mistletoe? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Glimepiride

Interactions in our licensed database are recorded against drug classes, not just single drug names. Glimepiride is filed under 5 classifications — including sulfonylureas, antidiabetes drugs, cytochrome p450 2c9 (cyp2c9) substrates. American Mistletoe has documented interactions with 2 drug classes — the most serious being antihypertensive drugs (major) and vasodilators (major) — and none of Glimepiride’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

American Mistletoe Does Interact With Other Medications

American Mistletoe has 190 major, known drug interactions in our database — Glimepiride isn’t one of them. If you take anything else, check it against the full list below.

Major 190 No known interaction 2,640 (incl. Glimepiride)
Taking anything else?

Check Another of Your Medications Against American Mistletoe

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

What to actually watch for

No Interaction Found — But Data Suggests American Mistletoe and Glimepiride May Share a Side Effect

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.

  • Nausea reported in 6.0% of FDA reports for Glimepiride Additional detail

    American Mistletoe

    “Evidence on adverse effects related to American mistletoe is limited to retrospective case reviews from poison control centers. Most reports suggest that American mistletoe may be relatively well tolerated at lower doses.”

    American Mistletoe · Natural Medicines adverse-effect record, reported in cardiac arrest.

    “Orally, American mistletoe can cause acute gastroenteritis. Consuming large doses of American mistletoe may cause nausea, vomiting, and diarrhea. Diarrhea and vomiting from ingestion of American mistletoe can lead to dehydration, hypovolemic shock, and cardiovascular collapse (6).”

    American Mistletoe · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.

    Glimepiride

    Listed in the ADVERSE REACTIONS section of the FDA label for Glimepiride, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for American Mistletoe but not commonly for Glimepiride: hallucinations, raised blood pressure, a slow heartbeat and dehydration.

Effects for Glimepiride come from the ADVERSE REACTIONS section of its FDA label; effects for American Mistletoe come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 38,826 voluntary FDA FAERS reports for Glimepiride 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

American Mistletoe in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally. American mistletoe is considered an abortifacient.

Lactation Likely Unsafe

When used orally; avoid using.

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 American Mistletoe or Glimepiride

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers American Mistletoe or Glimepiride, 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 Glimepiride

This page covers American Mistletoe only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Glimepiride page lists 306 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Siberian Cocklebur (major), Acai (moderate), Adrafinil (moderate) and African Wild Potato (moderate).

By severity: 2 major · 256 moderate · 48 minor.

From our pharmacist’s overview on the Glimepiride page

“Glimepiride (Amaryl) is a sulfonylurea, a diabetes pill that prompts the pancreas to release insulin, so anything that further lowers blood sugar can tip you into hypoglycemia, and that describes most of this list. Of the 306 supplement and herbal ingredients on file, 239 can move blood sugar on their own.”

Reviewed by 2 · Jul 18, 2026

Open the Glimepiride interaction page

How much people look this up

Where American Mistletoe and Glimepiride 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 American Mistletoe
Steady interest

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

29 days ago today
Medication Glimepiride
Top half

#792 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 American Mistletoe reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The American Mistletoe and Glimepiride 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 American Mistletoe

What is American Mistletoe?

American Mistletoe
  • Traditional folk remedies
  • Digestive complaints
  • Decorative holiday plant

American mistletoe is a parasitic plant that is best known as a holiday decoration, not a proven medicine. It contains toxins that can harm the heart, gut, and blood vessels, and it has little reliable evidence to support any health use. We do not recommend taking it, and all parts should be kept away from children and pets.

Phoradendron leucarpum · Santalaceae · Leaves, stems, and berries · Rarely used as a supplement; historically as tea or dried plant. Most often seen as a holiday decoration.

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

American Mistletoe: dosing

There is no established safe or effective dose of American mistletoe. Because the plant is toxic and not recommended for medicinal use, no dosing guidance can be given.If you ever see a product containing mistletoe, do not take it without first speaking to a pharmacist or doctor. The safest approach is to avoid using American mistletoe internally altogether.

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

Read the full American Mistletoe monograph & all interactions
Medication

About Glimepiride

What Is Glimepiride Used For?

Brand name: Amaryl

Glimepiride tablets are used to improve blood sugar control in adults with type 2 diabetes. It is always used together with a healthy diet and regular exercise — it is not a replacement for those habits.

Glimepiride is not intended for type 1 diabetes or diabetic ketoacidosis (a serious complication where the body produces high levels of blood acids called ketones). It would not be effective in those situations.

Most-Reported Side Effects for Glimepiride

From FAERS, the FDA’s public side-effect reporting system (38,826 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Blood glucose increased 3,016 reports
Nausea 2,345 reports
Diarrhea 2,265 reports
Fatigue 1,879 reports
Hypoglycaemia 1,682 reports
See full Glimepiride drug information
Keep checking

Other Drugs & American Mistletoe

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

190Major
0Moderate
0Minor
2,639No known interaction
190 Major 2,639 No interaction
Major

190 interactions

Showing 60 of 190 major interactions — see all 190 on the American Mistletoe page.

No interaction 2,639 drugs checked — show the list

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

Showing the 60 most looked-up of 2,639 medications checked with no known interaction — see the full American Mistletoe list.

See the full American Mistletoe interactions page
See every supplement checked against Glimepiride, ranked by severity
Evidence & sources

American Mistletoe References

The 4 references that drive our American Mistletoe 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. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Foster S, Tyler VE. Tyler's Honest Herbal, 4th ed., Binghamton, NY: Haworth Herbal Press, 1999. DOI
  4. Moore HW. Mistletoe poisoning: a review of the available literature, and the report of a case of probable fatal poisoning. J S Carolina Med Assoc 1963;59(8):269-271.

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 American Mistletoe and Glimepiride Together: Common Questions

Is it safe to take American Mistletoe with Glimepiride?
We do not list a known interaction between American Mistletoe and Glimepiride. 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 American Mistletoe and Glimepiride have any of the same side effects?
Yes — our sources link each of them separately to one 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.
How was the American Mistletoe and Glimepiride combination checked?
Interactions in our licensed database are recorded against drug classes. Glimepiride is filed under 5 classifications, and American Mistletoe has documented interactions with 2 drug classes — none of Glimepiride'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 American Mistletoe interact with any other medications?
Yes. American Mistletoe has 190 documented drug interactions in our database — Glimepiride 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 Glimepiride interact with any supplements?
Yes. Glimepiride has documented interactions with 306 supplements in our database — American Mistletoe is not one of them. The Glimepiride 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

American Mistletoe monograph Uses, safety profile, and every drug interaction in one place Glimepiride drug information The full plain-English guide to this medication Glimepiride supplement interactions Every supplement checked against Glimepiride, 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 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Glimepiride and American Mistletoe?

Our pharmacists answer your medication & supplement questions — free.

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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.