Drug & supplement interaction

Kamala + Sevelamer

Sevelamer brand name: Renagel.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Kamala 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.

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Interaction report

Kamala 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 Kamala 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 Kamala at all — not against Sevelamer, 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.

Kamala safety at a glance

Kamala overall Use caution Limited modern safety data and a known tendency to cause strong digestive effects.
Pregnancy Avoid Traditionally used to stimulate the uterus and not considered safe in pregnancy.
Breastfeeding Avoid No reliable safety data during breastfeeding, so it is best avoided.

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

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

What Sevelamer’s Own FDA Label Lists

This is not an interaction — none of it involves Kamala. These are the most notable effects listed in the ADVERSE REACTIONS section of Sevelamer’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 3 of them are worth acting on rather than waiting out — marked below.

  • A bowel blockage Worth acting on
  • Bleeding or bruising Worth acting on
  • An allergic reaction Worth acting on
  • Bloating or gas
  • Stomach upset
  • Constipation
  • Itching
  • Stomach pain
  • Diarrhea
  • A skin rash

Showing the 10 most notable of 12 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Sevelamer. Read the label on DailyMed › Kamala’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Kamala side to compare — that is a limit of the record, not a statement that Kamala has no side effects.

How to take them

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

At least one FDA label for a product containing Sevelamer says to take it with food. If you take Kamala 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 Kamala 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 Kamala as Part of a Dietary Supplement Product? Check It for Interactions

We hold 6 real supplement products containing Kamala, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Kamala. Even though Kamala 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 Kamala 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 Kamala
Steady interest

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

29 days ago today
Medication Sevelamer
Steady interest

#2,785 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.
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Kamala and Sevelamer records this page draws on were last updated June 22, 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 Kamala

What is Kamala?

  • Intestinal worms (especially tapeworm)
  • Skin conditions and parasites
  • Constipation/laxative effect
  • Wound care (traditional)
  • Use as a natural orange-red dye

Kamala is a red powder from the fruit of the Mallotus philippensis tree, used in traditional medicine mainly to expel intestinal worms and as a dye. Modern human evidence for its safety and effectiveness is very limited, and it can cause significant digestive upset, so it should only be used under professional guidance, if at all.

Mallotus philippensis · Euphorbiaceae · Red powder (glands and hairs) from the surface of the fruit; sometimes bark and leaves · Powder, capsules, traditional preparations; also used historically as a dye

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

Kamala: dosing

There is no well-established, standardized dose of Kamala supported by modern clinical research. Do not exceed the recommended amount, and avoid using it for self-treatment of worm infections without medical guidance, since safer and better-studied options are available.

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

Read the full Kamala 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 & Kamala

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

Sources & How We Checked

We checked Kamala against Sevelamer in the Natural Medicines interaction database and found no documented interaction on file. The medication overview comes from MedlinePlus, and supplement label details from the NIH Dietary Supplement Label Database.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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Pharmacist Counseling Corner

Taking Kamala and Sevelamer Together: Common Questions

Is it safe to take Kamala with Sevelamer?
We do not list a known interaction between Kamala 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.
Should I take Kamala 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 Kamala 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.
Does Sevelamer interact with any supplements?
Yes. Sevelamer has documented interactions with 18 supplements in our database — Kamala 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

Still Have a Question About Sevelamer and Kamala?

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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.