Drug & supplement interaction

Lesser Celandine + Carbidopa, Levodopa

Carbidopa, Levodopa brand names: Sinemet CR, Sinemet, Rytary, Dhivy.

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 Lesser Celandine and Carbidopa, Levodopa 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.

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

Lesser Celandine and Carbidopa, Levodopa

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 Carbidopa, Levodopa and Lesser Celandine 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 Lesser Celandine at all — not against Carbidopa, Levodopa, 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.

Lesser Celandine safety at a glance

Lesser Celandine overall Use caution The fresh plant contains irritating compounds and is potentially toxic if taken raw or in large amounts.
Pregnancy Likely Unsafe When fresh parts of the plant are used orally; avoid using. Read the full pregnancy detail
Breastfeeding Likely Unsafe When fresh parts of the plant are 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 Carbidopa, Levodopa and Lesser Celandine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Lesser Celandine and Carbidopa, Levodopa 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.

  • Diarrhea Additional detail

    Lesser Celandine

    “Orally, lesser celandine may cause severe gastrointestinal irritation, colic, diarrhea, and irritation of the urinary tract (18). One report associates the use of lesser celandine with a case of recurrent, acute hepatitis.

    Topically, lesser celandine can cause mucous membrane and skin irritation (18). Extended contact with fresh, bruised plant can cause blisters (18).”

    Lesser Celandine · Natural Medicines adverse-effect record, reported in diarrhea.

    3 sources cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
    2. 96287. Yilmaz B, Yilmaz B, Aktas B, Unlu O, Roach EC. Lesser celandine (pilewort) induced acute toxic liver injury: The first case report worldwide. World J Hepatol. 2015;7(2):285-8. PubMed
    3. 19. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

    “Orally, use of the plant is associated with severe gastrointestinal irritation, colic, and diarrhea (18).”

    Lesser Celandine · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Carbidopa, Levodopa

    Listed in the ADVERSE REACTIONS section of the FDA label for Carbidopa, Levodopa. Read the label on DailyMed ›

Reported for Lesser Celandine but not commonly for Carbidopa, Levodopa: liver problems and yellowing of the skin or eyes.

Effects for Carbidopa, Levodopa come from the ADVERSE REACTIONS section of its FDA label; effects for Lesser Celandine come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Lesser Celandine in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Unsafe

When fresh parts of the plant are 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

Everything else you take

See Every Supplement That Interacts With Carbidopa, Levodopa

This page covers Lesser Celandine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Carbidopa, Levodopa page lists 43 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Branched-chain Amino Acids (bcaa) (major), Cowhage (major), Indian Snakeroot (major) and Magnesium (major).

By severity: 8 major · 24 moderate · 11 minor.

From our pharmacist’s overview on the Carbidopa, Levodopa page

“Carbidopa/levodopa (Sinemet, Rytary) anchors Parkinson's treatment, and because symptom control hinges on how much levodopa actually reaches the brain, the 43 supplements and herbs on this list deserve real respect before you add any of them. Eight carry a major rating, and almost all of the serious entries weaken the drug rather than…”

Reviewed by 2 · Jul 18, 2026

Open the Carbidopa, Levodopa interaction page

How much people look this up

Where Lesser Celandine and Carbidopa, Levodopa 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 Lesser Celandine
Steady interest

#1,383 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Carbidopa, Levodopa
Top 5%

#118 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 Lesser Celandine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lesser Celandine and Carbidopa, Levodopa records this page draws on were last updated July 10, 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 Lesser Celandine

What is Lesser Celandine?

  • Hemorrhoids
  • Skin sores and itching
  • Scurvy (historically, as a spring green)
  • Minor wounds

Lesser Celandine is a small spring wildflower with a long folk reputation for treating hemorrhoids (one of its old names is 'pilewort'). There is very little modern scientific evidence that it works for any condition, and the fresh plant is irritating and can be toxic if used improperly. It is best avoided as an internal supplement, and you should talk to a pharmacist or doctor before using it.

Ficaria verna · Ranunculaceae · Aerial parts (leaves and flowers) and root · Traditional ointments, tinctures, and dried herb preparations

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

Lesser Celandine: dosing

There is no established or standardized dose for Lesser Celandine. It is not a common commercial supplement, and reliable dosing information from clinical research does not exist.If you are considering a traditional product that contains it, follow the product label exactly and do not use the fresh plant on your own.

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

Read the full Lesser Celandine monograph & all interactions
Medication

About Levodopa and Carbidopa

What Is Levodopa and Carbidopa Used For?

Brand names: Sinemet CR, Sinemet, Rytary, Dhivy

Levodopa and carbidopa is used to treat Parkinson's disease, post-encephalitic parkinsonism (parkinsonism that develops after a brain infection), and symptomatic parkinsonism that can follow carbon monoxide or manganese poisoning. These indications are shared across the oral tablet, orally disintegrating tablet, extended-release tablet, and extended-release capsule formulations (including Sinemet, Rytary, Crexont, and generic products).

DUOPA — a carbidopa/levodopa suspension given through a tube directly into the small intestine — is specifically indicated for the treatment of motor fluctuations in patients with advanced Parkinson's disease. This is a product-specific indication and does not apply to the oral forms.

See full Levodopa and Carbidopa drug information
Keep checking

Other Drugs & Lesser Celandine

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

See the full Lesser Celandine interactions page
See every supplement checked against Carbidopa, Levodopa, ranked by severity
Evidence & sources

Lesser Celandine References

The 4 references that drive our Lesser Celandine 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. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Yilmaz B, Yilmaz B, Aktas B, Unlu O, Roach EC. Lesser celandine (pilewort) induced acute toxic liver injury: The first case report worldwide. World J Hepatol. 2015;7(2):285-8. 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 Lesser Celandine and Carbidopa, Levodopa Together: Common Questions

Is it safe to take Lesser Celandine with Carbidopa, Levodopa?
We do not list a known interaction between Lesser Celandine and Carbidopa, Levodopa. 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 Lesser Celandine and Carbidopa, Levodopa 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.
Does Carbidopa, Levodopa interact with any supplements?
Yes. Carbidopa, Levodopa has documented interactions with 43 supplements in our database — Lesser Celandine is not one of them. The Carbidopa, Levodopa 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

Lesser Celandine monograph Uses, safety profile, and every drug interaction in one place Levodopa and Carbidopa drug information The full plain-English guide to this medication Carbidopa, Levodopa supplement interactions Every supplement checked against Carbidopa, Levodopa, 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 Carbidopa, Levodopa and Lesser Celandine?

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.