Lunasin + Ferric Citrate
Ferric Citrate brand name: Auryxia.
We found no known interaction between Lunasin and Ferric Citrate 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 Ferric Citrate states a food rule worth keeping to, and 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.
Lunasin and Ferric Citrate
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 Ferric Citrate and Lunasin 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 Lunasin at all — not against Ferric Citrate, 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.
Lunasin safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Some Ferric Citrate Products Have a Food Rule — Lunasin Should Not Break It
At least one FDA label for a product containing Ferric Citrate says to take it with food. If you take Lunasin on an empty stomach out of habit, keep them separate — and take Ferric Citrate 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 Ferric Citrate 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.
( 2.2 ) 2.1 Dosage for Hyperphosphatemia in Chronic Kidney Disease on Dialysis The recommended starting dose is 2 tablets, swallowed whole, 3 times per day with meals.
From the Dosage and Administration section of the FDA label we read for Ferric Citrate — 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.
See Every Supplement That Interacts With Ferric Citrate
This page covers Lunasin only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ferric Citrate 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 Ferric Citrate page
“Ferric citrate (Auryxia) does its work in the gut, binding dietary phosphate in kidney disease or supplying iron, and all 17 supplements on this list can interfere with how oral medicines get absorbed. That is worth real caution, starting with the single major-rated entry, activated charcoal, which adsorbs many drugs directly and can m…”
Reviewed by 2 · Jul 18, 2026
Where Lunasin and Ferric Citrate 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.
#915 of 1,452 supplements looked up here in the last 7 days
#2,380 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 Lunasin reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lunasin and Ferric Citrate 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 Lunasin
What is Lunasin?
- Cholesterol and heart health
- General immune support
- Antioxidant support
- Anti-inflammatory support
- Cancer-prevention interest (unproven)
Lunasin is a small protein (peptide) found naturally in soybeans and some other seeds and grains. Laboratory and animal studies suggest it may have antioxidant, anti-inflammatory, and cholesterol-related effects, but solid human evidence is very limited. Talk with your pharmacist or doctor before using a lunasin supplement.
Seeds (most studied in soybean) · Capsules, powders, and protein extracts (often soy-derived)
An interaction check asks whether these two react with each other — it does not ask whether Lunasin is a good idea for someone in your situation. Here is what our Lunasin record says about it on its own.
Lunasin: dosing
There is no established standard dose for lunasin supplements. The amounts used in research vary, and product labels differ from brand to brand.If you choose to try a product, follow the directions on the label and do not exceed them. Because quality and purity of supplements can vary, look for brands that use independent third-party testing.
From our Lunasin monograph — the full record covers uses, side effects and every documented interaction.
About Ferric Citrate
What Is Ferric Citrate Used For?
Brand name: Auryxia
Ferric citrate tablets — sold as Auryxia and under the generic name Ferric Citrate — are approved for two related uses in adults with chronic kidney disease (CKD).
For patients on dialysis, they work as a phosphate binder to control high phosphorus (hyperphosphatemia) levels in the blood. For patients with CKD who are not on dialysis, they serve as an iron replacement to treat iron deficiency anemia.
Most-Reported Side Effects for Ferric Citrate
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 & Lunasin
Browse every other medication we’ve checked against Lunasin — 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 Lunasin 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 ›
- Amitriptyline ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Bendamustine ›
- Methotrexate ›
- Bupropion ›
- Amphetamine ›
- Doxycycline ›
- Fluoxetine ›
- 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 Lunasin list.
Lunasin References
The 2 references that drive our Lunasin 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.
- Bedlack RS, Wicks P, Vaughan T, et al. Lunasin does not slow ALS progression: results of an open-label, single-center, hybrid-virtual 12-month trial. Amyotroph Lateral Scler Frontotemporal Degener. 2019 May;20(3-4):285-293. PubMed
- Haddad Tabrizi S, Haddad E, Rajaram S, Oda K, Kaur A, Sabaté J. The effect of soybean lunasin on cardiometabolic risk factors: A randomized clinical trial. Subst Use Misuse. 2019;54(9):1530-1540. 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 Lunasin and Ferric Citrate Together: Common Questions
Is it safe to take Lunasin with Ferric Citrate?
Do Lunasin and Ferric Citrate have any of the same side effects?
Should I take Lunasin and Ferric Citrate at the same time of day?
Does Ferric Citrate 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.