Drug & supplement interaction

Columbine + Propylthiouracil, PTU

Propylthiouracil, PTU brand name: Propylthiouracil.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Oct 4, 2026
The bottom line No known interaction

We found no known interaction between Columbine 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.

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Interaction report

Columbine 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 Columbine 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 Columbine 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.

Columbine safety at a glance

Columbine overall Avoid Parts of the plant—especially seeds and roots—can be toxic, and safe use is not established.
Pregnancy Avoid Not enough safety data and potential toxicity make use during pregnancy unsafe.
Breastfeeding Avoid Safety has not been studied, so it is best avoided while breastfeeding.

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

Still wondering about combining Propylthiouracil, PTU and Columbine? 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 Columbine. 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 2,050 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. Columbine’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Columbine side to compare — that is a limit of the record, not a statement that Columbine has no side effects.

From our Q&A

Questions About Columbine 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 Columbine 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 Columbine 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 Columbine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 6 real supplement products containing Columbine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Columbine. Even though Columbine 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 Columbine 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 Columbine
Steady interest

#1,249 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Propylthiouracil, PTU
Steady interest

#2,072 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. Columbine is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Columbine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Columbine and Propylthiouracil, PTU records this page draws on were last updated June 22, 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 Columbine

What is Columbine?

  • Skin sores and rashes (traditional)
  • Sore throat and mouth irritation (traditional)
  • Minor wounds (traditional, topical)
  • General folk remedy

Columbine is a flowering plant once used in traditional folk medicine, but there is very little modern scientific evidence that it works for any health condition. It belongs to the buttercup family, which contains potentially toxic compounds, so it is not recommended as a supplement and the seeds and roots in particular can be poisonous. If you are considering any herbal product, talk with your pharmacist or doctor first.

Aquilegia vulgaris · Ranunculaceae · Flowers, leaves, and root (used historically) · Rarely used today; historically prepared as teas, poultices, or tinctures

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

Columbine: dosing

There is no established or recommended dose for columbine. It is not a standard supplement, and safe amounts have not been determined through scientific study.Because of its potential toxicity, we do not recommend taking columbine. If you come across a product that contains it, follow the product label only after checking with a pharmacist or doctor, and do not exceed any directions given.

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

Read the full Columbine monograph & all interactions
Medication

About Propylthiouracil

What Is Propylthiouracil Used For?

Brand name: Propylthiouracil

Propylthiouracil tablets treat hyperthyroidism (an overactive thyroid). They are meant for people who cannot tolerate methimazole, another antithyroid medicine.

The tablets are used in two situations: Graves’ disease with hyperthyroidism or toxic multinodular goiter when surgery or radioactive iodine is not a good option, and easing symptoms before thyroid surgery or radioactive iodine therapy.

See full Propylthiouracil drug information
Keep checking

Other Drugs & Columbine

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

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

Columbine References

The 1 sources that drive our Columbine monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Columbine is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Poisonous Plants — MedlinePlus Source

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 Columbine and Propylthiouracil, PTU Together: Common Questions

Is it safe to take Columbine with Propylthiouracil, PTU?
We do not list a known interaction between Columbine 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 — Columbine 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

Columbine 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 Columbine?

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.