Water Avens + Bevacizumab
Bevacizumab brand name: Avastin.
We found no known interaction between Water Avens and Bevacizumab 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.
Water Avens and Bevacizumab
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 Bevacizumab 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 Bevacizumab, 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
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Bevacizumab
This page covers Water Avens only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Bevacizumab page lists 17 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).
By severity: 1 major · 7 moderate · 9 minor.
From our pharmacist’s overview on the Bevacizumab page
“Anyone receiving bevacizumab (Avastin) is fighting a serious cancer, often reaching for fiber supplements or charcoal to settle treatment-related stomach trouble, and that is exactly where this list deserves genuine attention. Every one of the 17 entries on file works through absorption, and the single major-rated interaction, activate…”
Reviewed by 2 · Jul 18, 2026
Where Water Avens and Bevacizumab 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.
#1,229 of 1,452 supplements looked up here in the last 7 days
#954 of 2,830 medications looked up here in the last 7 days
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 Bevacizumab 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.
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.
About Bevacizumab Injection
What Is Bevacizumab Injection Used For?
Brand name: Avastin
Bevacizumab injection is used to treat multiple types of advanced or metastatic cancers, most often in combination with chemotherapy. Avastin is approved for metastatic colorectal cancer (when combined with specific fluorouracil-based chemotherapy regimens), non-squamous non-small cell lung cancer (first-line, with carboplatin and paclitaxel), recurrent glioblastoma in adults, metastatic renal cell carcinoma (with interferon alfa), persistent or metastatic cervical cancer, and hepatocellular carcinoma (liver cancer, in combination with atezolizumab for patients who have not yet received systemic therapy).
Avastin is also approved for epithelial ovarian, fallopian tube, or primary peritoneal cancer — including stage III/IV disease after surgery, platinum-resistant recurrent disease, and platinum-sensitive recurrent disease — each with specific chemotherapy partner regimens. Note that Avastin is not indicated for adjuvant (preventive post-surgery) treatment of colon cancer.
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.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Water Avens against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Testosterone ›
- Ivermectin ›
- Losartan Potassium ›
- Abemaciclib ›
- Aspirin ›
- Acetaminophen ›
- Metoprolol ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Tadalafil ›
- Tirzepatide ›
- Methamphetamine ›
- Ibuprofen ›
- Warfarin Sodium ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Amitriptyline ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Bendamustine ›
- Methotrexate ›
- Bupropion ›
- Amphetamine ›
- Fluoxetine ›
- Doxycycline ›
- Azithromycin ›
- Acyclovir ›
- Pregabalin ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Levothyroxine, Liothyronine ›
- Clonazepam ›
- Quetiapine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Duloxetine ›
- Methylene Blue ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Water Avens list.
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.
- Herbs at a Glance — NIH National Center for Complementary and Integrative Health Source
- 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.
Taking Water Avens and Bevacizumab Together: Common Questions
Is it safe to take Water Avens with Bevacizumab?
Does Bevacizumab interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Bevacizumab 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.