Buckwheat + Ibrutinib
Ibrutinib brand name: Imbruvica.
We found no known interaction between Buckwheat and Ibrutinib 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.
Buckwheat and Ibrutinib
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 Ibrutinib and Buckwheat 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 Buckwheat at all — not against Ibrutinib, 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.
Buckwheat safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Ibrutinib
This page covers Buckwheat only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ibrutinib page lists 282 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Danshen (major), Grapefruit (major), Piracetam (major) and St. John's Wort (major).
By severity: 5 major · 236 moderate · 41 minor.
From our pharmacist’s overview on the Ibrutinib page
“Ibrutinib (Imbruvica) treats blood cancers such as chronic lymphocytic leukemia, and because the drug itself makes bruising and bleeding more likely, adding the wrong supplement here can carry real consequences. Most of the entries below have blood-thinning or antiplatelet activity that stacks on top of that built-in bleeding risk.”
Reviewed by 2 · Jul 18, 2026
Taking Buckwheat as Part of a Dietary Supplement Product? Check It for Interactions
We hold 382 real supplement products containing Buckwheat, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Buckwheat. Even though Buckwheat itself has no known interaction with Ibrutinib, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Buckwheat and Ibrutinib 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.
#453 of 1,452 supplements looked up here in the last 7 days
#860 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.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Buckwheat reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Buckwheat and Ibrutinib 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.
About Buckwheat
What is Buckwheat?
- Heart and circulation health
- Blood sugar support
- Source of fiber and protein
- Antioxidant support
- Varicose veins or leg swelling (traditional)
Buckwheat is a nutritious, naturally gluten-free seed that is high in fiber, protein, and antioxidants like rutin. As a food it can be part of a heart-healthy diet, but evidence that buckwheat supplements treat specific conditions is limited. Talk to your pharmacist or doctor before using concentrated extracts.
Fagopyrum esculentum · Polygonaceae · Seeds (grain), and sometimes the herb (leaves and flowers) · Flour, groats, whole seeds, tea, capsules/tablets, and extracts
An interaction check asks whether these two react with each other — it does not ask whether Buckwheat is a good idea for someone in your situation. Here is what our Buckwheat record says about it on its own.
Buckwheat: dosing
There is no official standardized supplement dose of buckwheat. As a food, it can simply be eaten as part of a balanced diet, similar to other whole grains and seeds.For buckwheat capsules, teas, or extracts, the right amount depends on the specific product.
From our Buckwheat monograph — the full record covers uses, side effects and every documented interaction.
About Ibrutinib
What Is Ibrutinib Used For?
Brand name: Imbruvica
Imbruvica (ibrutinib) is used in adults to treat chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL), including cases with a specific genetic change called 17p deletion. It is also used in adults to treat Waldenström's macroglobulinemia (WM), a rare type of slow-growing blood cancer.
Imbruvica is also approved for adults and children aged 1 year and older with chronic graft-versus-host disease (cGVHD) — a serious immune complication that can occur after a stem cell or bone marrow transplant — when at least one prior treatment has not worked.
Most-Reported Side Effects for Ibrutinib
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.
Other Drugs & Buckwheat
Browse every other medication we’ve checked against Buckwheat — 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 Buckwheat against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Losartan Potassium ›
- Testosterone ›
- Ivermectin ›
- Abemaciclib ›
- Aspirin ›
- Metoprolol ›
- Acetaminophen ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Valacyclovir ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Methotrexate ›
- Amlodipine Besylate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Fluoxetine ›
- Doxycycline ›
- Acyclovir ›
- Azithromycin ›
- Lamotrigine ›
- Pregabalin ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Quetiapine ›
- Clonazepam ›
- Levothyroxine, Liothyronine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Methylene Blue ›
- Duloxetine ›
- Citalopram ›
- Buspirone ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Buckwheat list.
Buckwheat References
The 12 references that drive our Buckwheat 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.
- Schiffner R, Przybilla B, Burgdorff T, et al. Anaphylaxis to buckwheat. Allergy 2001;56:1020-1. PubMed
- Lee SY, Lee KS, Hong CH, Lee KY. Three cases of childhood nocturnal asthma due to buckwheat allergy. Allergy 2001;56:763-6. PubMed
- Wieslander G, Norback D. Buckwheat allergy. Allergy 2001;56:703-4.
- Skrabanja V, Liljeberg Elmstahl HG, Kreft I, Bjorck IM. Nutritional properties of starch in buckwheat products: studies in vitro and in vivo. J Agric Food Chem 2001;49:490-6. PubMed
- Bijlani RL, Gandhi BM, Gupta MC, et al. Effect of whole buckwheat (Fagopyrum esculentum) flour supplementation on lipid profile & glucose tolerance. Indian J Med Res 1985;81:162-8.
- Fritz SB, Gold BL. Buckwheat pillow-induced asthma and allergic rhinitis. Ann Allergy Asthma Immunol 2003;90:355-8. PubMed
- Ihme, N., Kiesewetter, H., Jung, F., Hoffmann, K. H., Birk, A., Muller, A., and Grutzner, K. I. Leg oedema protection from a buckwheat herb tea in patients with chronic venous insufficiency: a single-centre, randomised, double-blind, placebo-controlled c
- Archimowicz-Cyrylowska B and et al. Clinical effect of buckwheat herb, Ruscus extract and troxerutin on retinopathy and lipids in diabetic patients. Phytother Res 1996;10(659):62. DOI
- Cifuentes L, Mistrello G, Amato S, et al. Identification of cross-reactivity between buckwheat and coconut. Ann Allergy Asthma Immunol. 2015 Dec;115(6):530-2. PubMed
- De Maat-Bleeker F, Stapel SO. Cross-reactivity between buckwheat and latex. Allergy. 1998 May;53(5):538-9. PubMed
- Qiu J, Liu Y, Yue Y, Qin Y, Li Z. Dietary tartary buckwheat intake attenuates insulin resistance and improves lipid profiles in patients with type 2 diabetes: a randomized controlled trial. Nutr Res. 2016 Dec;36(12):1392-1401. PubMed
- Li L, Lietz G, Seal C. Buckwheat and CVD risk markers: a systematic review and meta-analysis. Nutrients. 2018;10(5). pii: E619. 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.
Taking Buckwheat and Ibrutinib Together: Common Questions
Is it safe to take Buckwheat with Ibrutinib?
Do Buckwheat and Ibrutinib have any of the same side effects?
Does Ibrutinib interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.