Drug & supplement interaction

Potentilla + Phenobarbital, Phenytoin

Phenobarbital, Phenytoin brand name: Dilantin with PB.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Potentilla and Phenobarbital, Phenytoin 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

Potentilla and Phenobarbital, Phenytoin

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 Phenobarbital, Phenytoin and Potentilla 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 Potentilla at all — not against Phenobarbital, Phenytoin, 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.

Potentilla safety at a glance

Potentilla overall Use caution Generally used in small traditional amounts, but human safety data are limited.
Pregnancy Avoid Not enough safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid use.

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

Still wondering about combining Phenobarbital, Phenytoin and Potentilla? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Everything else you take

See Every Supplement That Interacts With Phenobarbital, Phenytoin

This page covers Potentilla only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Phenobarbital, Phenytoin page lists 229 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).

By severity: 9 major · 192 moderate · 28 minor.

From our pharmacist’s overview on the Phenobarbital, Phenytoin page

“If your seizure medicine is the phenobarbital and phenytoin combination (Dilantin with PB), read this list carefully before you add any supplement. Nine of the 229 entries rate major, and most of the risk runs through two channels.”

Reviewed by 2 · Jul 18, 2026

Open the Phenobarbital, Phenytoin interaction page

How much people look this up

Where Potentilla and Phenobarbital, Phenytoin 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 Potentilla
Steady interest

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

29 days ago today
Medication Phenobarbital, Phenytoin
Steady interest

#2,136 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. Potentilla 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 Potentilla reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Potentilla and Phenobarbital, Phenytoin 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 Potentilla

What is Potentilla?

  • Diarrhea and digestive upset
  • Mouth and throat sores
  • Menstrual cramps
  • Mild sore throat
  • Minor wounds and skin irritation

Potentilla is a group of tannin-rich plants long used in traditional medicine for diarrhea, mouth sores, and minor inflammation. Modern human evidence is very limited, so it should not replace proven treatments. Talk with your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.

Argentina anserina (syn. Potentilla anserina) · Rosaceae · Roots, leaves, and aerial (above-ground) parts · Tea, tincture, capsules, mouth rinse, topical preparations

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

Potentilla: dosing

There is no well-established standardized dose for Potentilla. Traditional preparations include teas made from the dried root or leaves, tinctures, and mouth rinses, but the right amount varies by product and species.Because reliable dosing studies are lacking, the safest approach is to follow the directions on the product label and not exceed them.

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

Read the full Potentilla monograph & all interactions
Keep checking

Other Drugs & Potentilla

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

See the full Potentilla interactions page
See every supplement checked against Phenobarbital, Phenytoin, ranked by severity
Evidence & sources

Potentilla References

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

  1. Herbs at a Glance — NIH NCCIH 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 Potentilla and Phenobarbital, Phenytoin Together: Common Questions

Is it safe to take Potentilla with Phenobarbital, Phenytoin?
We do not list a known interaction between Potentilla and Phenobarbital, Phenytoin. 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 Phenobarbital, Phenytoin interact with any supplements?
Yes. Phenobarbital, Phenytoin has documented interactions with 229 supplements in our database — Potentilla is not one of them. The Phenobarbital, Phenytoin 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

Potentilla monograph Uses, safety profile, and every drug interaction in one place Phenobarbital, Phenytoin supplement interactions Every supplement checked against Phenobarbital, Phenytoin, 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 Phenobarbital, Phenytoin and Potentilla?

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.