Drug & supplement interaction

Blueberry + Sevelamer

Sevelamer brand name: Renagel.

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

We found no known interaction between Blueberry and Sevelamer 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 Sevelamer 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.

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Interaction report

Blueberry and Sevelamer

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 Sevelamer and Blueberry 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.

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.

Blueberry safety at a glance

Blueberry overall Generally safe Blueberries are widely eaten as food and are generally safe for most people.
Pregnancy Likely Safe When used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of blueberry for medicinal use; avoid... Read the full pregnancy detail
Breastfeeding Likely Safe When used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of blueberry for medicinal use; avoid... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Sevelamer and Blueberry? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Sevelamer

Interactions in our licensed database are recorded against drug classes, not just single drug names. Sevelamer is filed under 2 classifications — including oral drugs. Blueberry has documented interactions with 3 drug classes — the most serious being antidiabetes drugs (minor), buspirone (buspar) (minor) and flurbiprofen (ansaid, others) (minor) — and none of Sevelamer’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Blueberry Does Interact With Other Medications

Blueberry has 88 minor known drug interactions in our database — Sevelamer isn’t one of them. If you take anything else, check it against the full list below.

Minor 88 No known interaction 2,742 (incl. Sevelamer)
Taking anything else?

Check Another of Your Medications Against Blueberry

Covers the 2,830 medications we’ve checked against Blueberry. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Blueberry and Sevelamer May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Constipation / Diarrhea / Vomiting / Nausea Additional detail

    Blueberry

    “Orally, freeze-dried blueberries may cause constipation, diarrhea, nausea, and vomiting. In one clinical trial, 26% of patients taking freeze-dried blueberries 50 grams daily dropped out in the first week of the study due to gastrointestinal complaints.”

    Blueberry · Natural Medicines adverse-effect record, reported in constipation.

    1 source cited
    1. 107278. Basu A, Du M, Leyva MJ, et al. Blueberries decrease cardiovascular risk factors in obese men and women with metabolic syndrome. J Nutr 2010;140(9):1582-7. PubMed

    Sevelamer

    Listed in the ADVERSE REACTIONS section of the FDA label for Sevelamer. Read the label on DailyMed ›

Effects for Sevelamer come from the ADVERSE REACTIONS section of its FDA label; effects for Blueberry come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Blueberry in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of blueberry for medicinal use; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Sevelamer Products Have a Food Rule — Blueberry Should Not Break It

At least one FDA label for a product containing Sevelamer says to take it with food. If you take Blueberry on an empty stomach out of habit, keep them separate — and take Sevelamer 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 Sevelamer 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 Starting dose of Renvela is 0.8 or 1.6 grams administered orally three times per day with meals based on serum phosphorus levels for adult patients and based on body surface area (BSA) category for pediatric patients.

From the Dosage and Administration section of the FDA label we read for Sevelamer — 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 Sevelamer

This page covers Blueberry only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Sevelamer page lists 18 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 · 10 minor.

From our pharmacist’s overview on the Sevelamer page

“Kidney patients who take sevelamer (Renagel) to control phosphorus have a real reason to pause over this page, and activated charcoal is why. It carries the only major rating here because it can trap medicines in the gut and sharply cut the amount the body actually gets.”

Reviewed by 2 · Jul 18, 2026

Open the Sevelamer interaction page

One more smart check

Taking Blueberry as Part of a Dietary Supplement Product? Check It for Interactions

We hold 5,076 real supplement products containing Blueberry, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Blueberry. Even though Blueberry itself has no known interaction with Sevelamer, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Blueberry and Sevelamer 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 Blueberry
Top 5%

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

29 days ago today
Medication Sevelamer
Steady interest

#2,774 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.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Blueberry reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Blueberry and Sevelamer 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.
Data structure & sourcing designed and verified by .
Supplement

About Blueberry

What is Blueberry?

  • Antioxidant support
  • Heart health
  • Brain and memory health
  • Blood sugar support
  • Eye health
  • Urinary health

Blueberries are a nutritious fruit rich in antioxidants called anthocyanins, and eating them as part of a balanced diet is healthy and safe for most people. Concentrated supplements are marketed for heart, brain, and blood sugar health, but the evidence is mostly early and not strong enough to promise specific benefits. Enjoy blueberries as food, and talk to your pharmacist before using high-dose extracts.

Vaccinium spp. · Ericaceae · Fruit (berries); sometimes leaves · Fresh or frozen fruit, juice, dried berries, powder, extract capsules, tea

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

Blueberry: dosing

There is no official standardized dose of blueberry for any health condition. As a food, a typical serving is around a half to one cup of fresh berries, which most people can enjoy daily.For supplements such as extract capsules, powders, or juices, the right amount varies by product, and a proven medical dose has not been established.

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

Read the full Blueberry monograph & all interactions
Medication

About Sevelamer

What Is Sevelamer Used For?

Brand name: Renagel

Sevelamer is used to control serum phosphorus (the level of phosphorus in your blood) in people with chronic kidney disease (CKD) who are on dialysis. High phosphorus is a serious problem for dialysis patients and needs to be managed with medication and diet.

Sevelamer carbonate tablets and Renvela® (sevelamer carbonate) oral suspension are approved for adults and children 6 years of age and older. Sevelamer hydrochloride tablets are indicated for adults with CKD on dialysis; their safety and effectiveness in CKD patients not on dialysis have not been studied.

See full Sevelamer drug information
Keep checking

Other Drugs & Blueberry

Browse every other medication we’ve checked against Blueberry — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
88Minor
2,741No known interaction
88 Minor 2,741 No interaction
Minor

88 interactions

Showing 60 of 88 minor interactions — see all 88 on the Blueberry page.

No interaction 2,741 drugs checked — show the list

We also checked Blueberry against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,741 medications checked with no known interaction — see the full Blueberry list.

See the full Blueberry interactions page
See every supplement checked against Sevelamer, ranked by severity
Evidence & sources

Blueberry References

The 7 references that drive our Blueberry 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.

  1. Cignarella A, Nastasi M, Cavalli E, Puglisi L. Novel lipid-lowering properties of Vaccinium myrtillus L. leaves, a traditional antidiabetic treatment, in several models of rat dyslipidaemia: a comparison with ciprofibrate. Thromb Res 1996;84:311-22. PubMed
  2. Wang SY, Lin HS. Antioxidant activity in fruits and leaves of blackberry, raspberry, and strawberry varies with cultivar and developmental stage. J Agric Food Chem 2000;48:140-6.. PubMed
  3. Martineau, L. C., Couture, A., Spoor, D., Benhaddou-Andaloussi, A., Harris, C., Meddah, B., Leduc, C., Burt, A., Vuong, T., Mai, Le P., Prentki, M., Bennett, S. A., Arnason, J. T., and Haddad, P. S. Anti-diabetic properties of the Canadian lowbush bluebe
  4. Vuong, T., Martineau, L. C., Ramassamy, C., Matar, C., and Haddad, P. S. Fermented Canadian lowbush blueberry juice stimulates glucose uptake and AMP-activated protein kinase in insulin-sensitive cultured muscle cells and adipocytes. Can J Physiol Pharma
  5. Hanley MJ, Masse G, Harmatz JS, Cancalon PF, Dolnikowski GG, Court MH, Greenblatt DJ. Effect of blueberry juice on clearance of buspirone and flurbiprofen in human volunteers. Br J Clin Pharmacol. 2013 Apr;75(4):1041-52. PubMed
  6. Basu A, Du M, Leyva MJ, et al. Blueberries decrease cardiovascular risk factors in obese men and women with metabolic syndrome. J Nutr 2010;140(9):1582-7. PubMed
  7. Basu A, Feng D, Planinic P, Ebersole JL, Lyons TJ, Alexander JM. Dietary blueberry and soluble fiber supplementation reduces risk of gestational diabetes in women with obesity in a randomized controlled trial. J Nutr 2021;151(5):1128-38. 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.

Pharmacist Counseling Corner

Taking Blueberry and Sevelamer Together: Common Questions

Is it safe to take Blueberry with Sevelamer?
We do not list a known interaction between Blueberry and Sevelamer. 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.
Do Blueberry and Sevelamer have any of the same side effects?
Yes — our sources link each of them separately to 4 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Should I take Blueberry and Sevelamer at the same time of day?
At least one FDA label for a product containing Sevelamer says to take it with food. If you take Blueberry on an empty stomach out of habit, keep them separate and take Sevelamer with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Sevelamer products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Blueberry and Sevelamer combination checked?
Interactions in our licensed database are recorded against drug classes. Sevelamer is filed under 2 classifications, and Blueberry has documented interactions with 3 drug classes — none of Sevelamer's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Blueberry interact with any other medications?
Yes. Blueberry has 88 documented drug interactions in our database — Sevelamer is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Sevelamer interact with any supplements?
Yes. Sevelamer has documented interactions with 18 supplements in our database — Blueberry is not one of them. The Sevelamer 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

Blueberry monograph Uses, safety profile, and every drug interaction in one place Sevelamer drug information The full plain-English guide to this medication Sevelamer supplement interactions Every supplement checked against Sevelamer, 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 7 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Sevelamer and Blueberry?

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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.