Drug & supplement interaction

Phytase + Lanthanum Carbonate

Lanthanum Carbonate brand name: Fosrenol.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Phytase and Lanthanum Carbonate 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 Lanthanum Carbonate states a food rule worth keeping to.

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Interaction report

Phytase and Lanthanum Carbonate

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 Lanthanum Carbonate and Phytase 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 Phytase at all — not against Lanthanum Carbonate, 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.

Phytase safety at a glance

Phytase overall Use caution Generally considered low-risk in foods, but human supplement data are limited.
Pregnancy Not established There is not enough reliable safety information, so avoid unless advised by your doctor.
Breastfeeding Not established Safety while breastfeeding has not been well studied; use caution and check with a doctor.

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

Still wondering about combining Lanthanum Carbonate and Phytase? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Phytase Itself Has Been Linked To

This is not an interaction — nothing below involves Lanthanum Carbonate. It is the side-effect record for Phytase on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Phytase, this list is the first place to look. One entry is worth acting on rather than waiting out — marked below.

  • Wheezing / Chest pain / Shortness of breath / An allergic reaction Worth acting on Additional detail

    “There are numerous reports of immunologic responses to airborne powdered phytase in the animal-feed industry. Examples of reactions include allergic occupational asthma and hypersensitivity pneumonitis. In one case report of a 43-year-old male, hypersensitivity pneumonitis related to phytase was diagnosed following a 6-month history of coughing, shortness of breath, fever, and dyspnea.”

    Phytase · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).

    4 sources cited
    1. 101901. Lei XG, Weaver JD, Mullaney E, Ullah AH, Azain MJ. Phytase, a new life for an "old" enzyme. Annu Rev Anim Biosci. 2013;1:283-309. PubMed
    2. 101908. van Heemst RC, Sander I, Rooyackers J, et al. Hypersensitivity pneumonitis caused by occupational exposure to phytase. Eur Respir J. 2009;33(6):1507-9. PubMed
    3. 101909. Baur X, Melching-Kollmuss S, Koops F, Strassburger K, Zober A. IgE-mediated allergy to phytase -- a new animal feed additive. Allergy. 2002;57(10):943-5. PubMed
    4. 101910. Doekes G, Kamminga N, Helwegen L, Heederik D. Occupational IgE sensitisation to phytase, a phosphatase derived from Aspergillus niger. Occup Environ Med. 1999;56(7):454-9. PubMed
  • A stuffy or runny nose / Cough / Fever Additional detail

    Recorded for Phytase in the same Natural Medicines adverse-effect record shown under Wheezing / Chest pain / Shortness of breath / An allergic reaction above.

Everything above comes from the Natural Medicines adverse-effect record for Phytase — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Lanthanum Carbonate’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Lanthanum Carbonate column appears here.

How to take them

Some Lanthanum Carbonate Products Have a Food Rule — Phytase Should Not Break It

At least one FDA label for a product containing Lanthanum Carbonate says to take it with food. If you take Phytase on an empty stomach out of habit, keep them separate — and take Lanthanum Carbonate 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 Lanthanum Carbonate 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.

Do not store FOSRENOL Oral Powder for future use once mixed with food.

From the Dosage and Administration section of the FDA label we read for Lanthanum Carbonate — where that label names a specific product, the instruction is that product's. See the Lanthanum Carbonate drug page ›

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 Lanthanum Carbonate

This page covers Phytase only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lanthanum Carbonate 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.

Open the Lanthanum Carbonate interaction page

One more smart check

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

We hold 1,063 real supplement products containing Phytase, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Phytase. Even though Phytase itself has no known interaction with Lanthanum Carbonate, 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 Phytase and Lanthanum Carbonate 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 Phytase
Top 25%

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

29 days ago today
Medication Lanthanum Carbonate
Steady interest

#2,034 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 Phytase reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Phytase and Lanthanum Carbonate 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 Phytase

What is Phytase?

  • Improving mineral absorption
  • Breaking down phytic acid (phytate) in grains and legumes
  • Supporting digestion of plant-based foods
  • Reducing 'anti-nutrient' effects of high-phytate diets

Phytase is an enzyme that breaks down phytic acid (phytate) found in grains, beans, nuts, and seeds, which can free up minerals like iron, zinc, and calcium for absorption. It is widely used in animal feed and food processing, but human supplement research is limited, so talk to a pharmacist or doctor before using it.

Enzyme (often derived from fungi, bacteria, or plants such as wheat and rice bran) · Capsules, tablets, powder, and as an added ingredient in some digestive enzyme blends

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

Phytase: dosing

There is no established standard dose of phytase for people. Phytase activity is often measured in special enzyme units (sometimes listed as "FTU" or "phytase units") rather than simple milligrams, and products vary widely.Because of this, the best approach is to follow the directions on the product label and not exceed them.

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

Read the full Phytase monograph & all interactions
Medication

About Lanthanum

What Is Lanthanum Used For?

Brand name: Fosrenol

Lanthanum is used to lower phosphate in the blood of people with end-stage renal disease (ESRD). Both Fosrenol and generic lanthanum carbonate chewable tablets carry this use.

Managing high phosphorus in ESRD usually involves three things: eating less phosphate, removing phosphate with dialysis, and using a phosphate binder to reduce how much phosphate the gut absorbs. Lanthanum is the binder part of that plan.

See full Lanthanum drug information
Keep checking

Other Drugs & Phytase

Browse every other medication we’ve checked against Phytase — 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
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Phytase list.

See the full Phytase interactions page
See every supplement checked against Lanthanum Carbonate, ranked by severity
Evidence & sources

Phytase References

The 7 references that drive our Phytase 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. Lei XG, Weaver JD, Mullaney E, Ullah AH, Azain MJ. Phytase, a new life for an "old" enzyme. Annu Rev Anim Biosci. 2013;1:283-309. PubMed
  2. Smuts CM, Matsungo TM, Malan L, et al. Effect of small-quantity lipid-based nutrient supplements on growth, psychomotor development, iron status, and morbidity among 6- to 12-mo-old infants in South Africa: a randomized controlled trial. Am J Clin Nutr. 2 PubMed
  3. van Heemst RC, Sander I, Rooyackers J, et al. Hypersensitivity pneumonitis caused by occupational exposure to phytase. Eur Respir J. 2009;33(6):1507-9. PubMed
  4. Baur X, Melching-Kollmuss S, Koops F, Strassburger K, Zober A. IgE-mediated allergy to phytase -- a new animal feed additive. Allergy. 2002;57(10):943-5. PubMed
  5. Doekes G, Kamminga N, Helwegen L, Heederik D. Occupational IgE sensitisation to phytase, a phosphatase derived from Aspergillus niger. Occup Environ Med. 1999;56(7):454-9. PubMed
  6. Brnic M, Hurrell RF, Songré-Ouattara LT, et al. Effect of phytase on zinc absorption from a millet-based porridge fed to young Burkinabe children. Eur J Clin Nutr. 2017;71(1):137-141. PubMed
  7. Koshy JC, Sharabi SE, Feldman EM, Hollier LH Jr, Patrinely JR, Soparkar CN. Effect of dietary zinc and phytase supplementation on botulinum toxin treatments. J Drugs Dermatol. 2012;11(4):507-12.

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 Phytase and Lanthanum Carbonate Together: Common Questions

Is it safe to take Phytase with Lanthanum Carbonate?
We do not list a known interaction between Phytase and Lanthanum Carbonate. 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 Phytase and Lanthanum Carbonate at the same time of day?
At least one FDA label for a product containing Lanthanum Carbonate says to take it with food. If you take Phytase on an empty stomach out of habit, keep them separate and take Lanthanum Carbonate with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Lanthanum Carbonate products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Lanthanum Carbonate interact with any supplements?
Yes. Lanthanum Carbonate has documented interactions with 17 supplements in our database — Phytase is not one of them. The Lanthanum Carbonate 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

Phytase monograph Uses, safety profile, and every drug interaction in one place Lanthanum drug information The full plain-English guide to this medication Lanthanum Carbonate supplement interactions Every supplement checked against Lanthanum Carbonate, 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 Lanthanum Carbonate and Phytase?

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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.