Drug & supplement interaction

Buckhorn Plantain + Propylthiouracil, PTU

Propylthiouracil, PTU brand name: Propylthiouracil.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Buckhorn Plantain and Propylthiouracil, PTU 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.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Buckhorn Plantain and Propylthiouracil, PTU

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 Propylthiouracil, PTU and Buckhorn Plantain 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 Buckhorn Plantain at all — not against Propylthiouracil, PTU, 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.

Buckhorn Plantain safety at a glance

Buckhorn Plantain overall Use caution Generally considered low-risk for short-term use, but human safety data are limited.
Pregnancy Likely Unsafe When used orally or topically. Some evidence suggests buckhorn plantain affects muscle tone of the uterus. Read the full pregnancy detail
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid unless cleared by your provider.

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 Propylthiouracil, PTU and Buckhorn Plantain? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Propylthiouracil, PTU’s Own FDA Label Lists

This is not an interaction — none of it involves Buckhorn Plantain. These are the most notable effects listed in the ADVERSE REACTIONS section of Propylthiouracil, PTU’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 9 of them are worth acting on rather than waiting out — marked below.

  • Yellowing of the skin or eyes Worth acting on
  • A severe skin reaction Worth acting on
  • A low white blood cell count Worth acting on mentioned in 2.9% of FDA reports for Propylthiouracil, PTU
  • A low platelet count Worth acting on
  • Kidney problems Worth acting on
  • Anemia Worth acting on
  • Liver problems Worth acting on
  • Bleeding or bruising Worth acting on
  • An allergic reaction Worth acting on
  • A change in taste

Showing the 10 most notable of 21 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Propylthiouracil, PTU. Read the label on DailyMed › Where a percentage is shown, it is the share of 2,019 voluntary FDA FAERS reports for Propylthiouracil, PTU that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Buckhorn Plantain’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Buckhorn Plantain side to compare — that is a limit of the record, not a statement that Buckhorn Plantain has no side effects.

Special populations

Buckhorn Plantain in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally or topically. Some evidence suggests buckhorn plantain affects muscle tone of the uterus.

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 Buckhorn Plantain or Propylthiouracil, PTU

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Buckhorn Plantain or Propylthiouracil, PTU, 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 Propylthiouracil, PTU

This page covers Buckhorn Plantain only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Propylthiouracil, PTU page lists 64 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Siberian Cocklebur (major), Wine (major) and Ascophyllum Nodosum (moderate).

By severity: 4 major · 51 moderate · 9 minor.

Open the Propylthiouracil, PTU interaction page

One more smart check

Taking Buckhorn Plantain as Part of a Dietary Supplement Product? Check It for Interactions

We hold 4 real supplement products containing Buckhorn Plantain, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Buckhorn Plantain. Even though Buckhorn Plantain itself has no known interaction with Propylthiouracil, PTU, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Buckhorn Plantain and Propylthiouracil, PTU 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 Buckhorn Plantain
Steady interest

#1,277 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Propylthiouracil, PTU
Steady interest

#2,580 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 Buckhorn Plantain reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Buckhorn Plantain and Propylthiouracil, PTU 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 Buckhorn Plantain

What is Buckhorn Plantain?

Buckhorn Plantain
  • Cough and sore throat
  • Respiratory irritation
  • Wound and skin care
  • Digestive upset
  • Mild inflammation

Buckhorn plantain is a common weed-like herb used traditionally for coughs, sore throats, and minor skin wounds. Some lab and small studies suggest it has soothing and mild anti-inflammatory effects, but high-quality human evidence is limited. It is generally considered low-risk for short-term use, but pregnant and breastfeeding people should be cautious and check with a healthcare provider.

Plantago lanceolata · Plantaginaceae · Leaves (above-ground parts) · Tea, tincture, syrup, capsules, topical creams or ointments, fresh crushed leaves

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

Buckhorn Plantain: dosing

There is no official standardized dose for buckhorn plantain. Traditional preparations include teas made from the dried leaves, syrups, tinctures, and topical products.Because product strength varies a lot between brands and forms, the best approach is to follow the directions on the product label.

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

Read the full Buckhorn Plantain monograph & all interactions
Medication

About Propylthiouracil

What Is Propylthiouracil Used For?

Brand name: Propylthiouracil

Propylthiouracil tablets are used to treat hyperthyroidism (an overactive thyroid) in adults and, in rare cases, children. It is specifically for patients with Graves' disease or toxic multinodular goiter who cannot tolerate methimazole and for whom surgery or radioactive iodine therapy is not a suitable option.

Propylthiouracil is also used to control hyperthyroidism symptoms in preparation for thyroidectomy (thyroid surgery) or radioactive iodine therapy in patients who cannot take methimazole. It may be the preferred antithyroid drug during or just before the first trimester of pregnancy when an antithyroid medication is needed.

See full Propylthiouracil drug information
Keep checking

Other Drugs & Buckhorn Plantain

Browse every other medication we’ve checked against Buckhorn Plantain — 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 Buckhorn Plantain 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 Buckhorn Plantain list.

See the full Buckhorn Plantain interactions page
See every supplement checked against Propylthiouracil, PTU, ranked by severity
Evidence & sources

Buckhorn Plantain References

The 1 references that drive our Buckhorn Plantain 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. Shipochliev T. Uterotonic action of extracts from a group of medicinal plants. Vet Med Nauki 1981;18:94-8.

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 Buckhorn Plantain and Propylthiouracil, PTU Together: Common Questions

Is it safe to take Buckhorn Plantain with Propylthiouracil, PTU?
We do not list a known interaction between Buckhorn Plantain and Propylthiouracil, PTU. 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.
Does Propylthiouracil, PTU interact with any supplements?
Yes. Propylthiouracil, PTU has documented interactions with 64 supplements in our database — Buckhorn Plantain is not one of them. The Propylthiouracil, PTU 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

Buckhorn Plantain monograph Uses, safety profile, and every drug interaction in one place Propylthiouracil drug information The full plain-English guide to this medication Propylthiouracil, PTU supplement interactions Every supplement checked against Propylthiouracil, PTU, 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Propylthiouracil, PTU and Buckhorn Plantain?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.