Drug & supplement interaction

Water Avens + Ganaxolone

Ganaxolone brand name: Ztalmy.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Water Avens and Ganaxolone 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 label for Ganaxolone states a food rule worth keeping to.

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Interaction report

Water Avens and Ganaxolone

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 Ganaxolone and Water Avens 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 Water Avens at all — not against Ganaxolone, 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.

Water Avens safety at a glance

Water Avens overall Not established Little modern safety data exists, so caution is advised.
Pregnancy Avoid Safety is not established, so avoid use during pregnancy.
Breastfeeding Avoid Safety is not established, so avoid use while breastfeeding.

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

Still wondering about combining Ganaxolone and Water Avens? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Ganaxolone’s Own FDA Label Lists

This is not an interaction — none of it involves Water Avens. These are the most notable effects listed in the ADVERSE REACTIONS section of Ganaxolone’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. 3 of them are worth acting on rather than waiting out — marked below.

  • Unsteadiness Worth acting on
  • Seizures Worth acting on
  • A higher chance of infection Worth acting on
  • A stuffy or runny nose
  • Drowsiness
  • Fever
  • Tiredness

From the ADVERSE REACTIONS section of the FDA label for Ganaxolone. Read the label on DailyMed › Water Avens’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Water Avens side to compare — that is a limit of the record, not a statement that Water Avens has no side effects.

How to take them

Some Ganaxolone Products Have a Food Rule — Water Avens Should Not Break It

At least one FDA label for a product containing Ganaxolone says to take it with food. If you take Water Avens on an empty stomach out of habit, keep them separate — and take Ganaxolone with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Ganaxolone products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

2 DOSAGE AND ADMINISTRATION Administer ZTALMY orally three times daily with food.

From the Dosage and Administration section of the FDA label we read for Ganaxolone — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Ganaxolone

This page covers Water Avens only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ganaxolone page lists 195 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 Grapefruit (major).

By severity: 9 major · 147 moderate · 39 minor.

From our pharmacist’s overview on the Ganaxolone page

“Families managing CDKL5 deficiency disorder, the rare childhood epilepsy that ganaxolone (Ztalmy) treats, should read this supplement list carefully rather than skim it. Most entries fall into two camps.”

Reviewed by 2 · Jul 18, 2026

Open the Ganaxolone interaction page

How much people look this up

Where Water Avens and Ganaxolone 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 Water Avens
Steady interest

#1,269 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Ganaxolone
Steady interest

#2,361 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. Water Avens 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 Water Avens reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Water Avens and Ganaxolone 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 Water Avens

What is Water Avens?

  • Diarrhea and digestive upset
  • Sore throat and mouth irritation
  • Mild fever
  • General tonic
  • Astringent for minor wounds

Water avens is a traditional herb whose root has been used as an astringent for diarrhea, sore throats, and digestive complaints. There is very little modern scientific research to confirm that it works or to define a safe dose, so use it cautiously and talk with a pharmacist or doctor first.

Geum rivale · Rosaceae · Root and rhizome (occasionally aerial parts) · Dried root, tea/decoction, tincture

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

Water Avens: dosing

There is no established or standardized dose for water avens. Traditional use involved teas (decoctions) of the dried root or tinctures, but reliable, research-based dosing is not available.If you choose to use a product, follow the directions on the label and do not exceed them.

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

Read the full Water Avens monograph & all interactions
Medication

About Ganaxolone

What Is Ganaxolone Used For?

Brand name: Ztalmy

Ztalmy (ganaxolone) oral suspension is approved to treat seizures associated with cyclin-dependent kinase-like 5 (CDKL5) deficiency disorder — a rare genetic condition, often called CDD — in patients 2 years of age and older.

Most-Reported Side Effects for Ganaxolone

From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Seizure 201 reports
Somnolence 52 reports
Change in seizure presentation 43 reports
Pneumonia 30 reports
Vomiting 24 reports
See full Ganaxolone drug information
Keep checking

Other Drugs & Water Avens

Browse every other medication we’ve checked against Water Avens — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

Water Avens References

The 2 sources that drive our Water Avens monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Water Avens is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Herbs at a Glance — NIH National Center for Complementary and Integrative Health Source
  2. Herbs and Supplements — MedlinePlus (U.S. National Library of Medicine) 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 Water Avens and Ganaxolone Together: Common Questions

Is it safe to take Water Avens with Ganaxolone?
We do not list a known interaction between Water Avens and Ganaxolone. 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.
Should I take Water Avens and Ganaxolone at the same time of day?
At least one FDA label for a product containing Ganaxolone says to take it with food. If you take Water Avens on an empty stomach out of habit, keep them separate and take Ganaxolone with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Ganaxolone products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Ganaxolone interact with any supplements?
Yes. Ganaxolone has documented interactions with 195 supplements in our database — Water Avens is not one of them. The Ganaxolone interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Ganaxolone and Water Avens?

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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.