Medication interaction hub

What Supplements Interact with L-glutamine (prescription drug)?

L-glutamine (prescription drug) brand names: NutreStore, Endari. Every interaction below applies to the brands too.

19 Interactions 1 Major 9 Moderate 9 Minor
Curated & coded by · Clinical Pharmacist · Updated October 1, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with L-glutamine (prescription drug)? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check L-glutamine (prescription drug) against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

Someone on prescription L-glutamine (Endari for sickle cell disease, NutreStore for short bowel syndrome) is usually managing gut symptoms already, which makes charcoal and fiber supplements a common and genuinely risky overlap, one worth treating with real caution. Seventeen of the 19 interacting ingredients on file work the same way, binding or coating the gut so less of an oral dose actually gets absorbed. Activated charcoal is the single major-rated entry because it can soak up the drug itself and blunt its effect.

The rest split evenly, nine moderate and nine minor, and most are bulk fibers and gel-formers such as psyllium and glucomannan. For a medicine taken to prevent sickle cell complications, quietly losing part of each dose is not a small thing. Space fiber supplements well apart from your L-glutamine, and treat charcoal products as off the table unless a pharmacist has specifically cleared them.

— , Clinical Pharmacist · July 18, 2026

Major 1 Moderate 9 Minor 9 No known interaction 1,433

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Top Ingredient Interactions

L-glutamine (prescription drug): Top Interactions at a Glance

The most significant L-glutamine (prescription drug) supplement & herbal interactions, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 19 interacting ingredients — plus 1,433 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

The most clinically significant L-glutamine (prescription drug) + supplement combinations in our database, best-documented first. Open any card for the full report.

Major Likelihood Probable Activated Charcoal + L-glutamine (prescription drug)i

Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the route of administration.

Read the full interaction
The complete list

Every Supplement Checked Against L-glutamine (prescription drug)

All 1,452 ingredients in our database, ranked by severity — 19 with a L-glutamine (prescription drug) interaction on file and 1,433 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With L-glutamine (prescription drug)?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Blond Psyllium with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.

Full Blond Psyllium + L-glutamine (prescription drug) answer

Can you take Glucomannan with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, glucomannan may decrease absorption of drugs taken orally.

Full Glucomannan + L-glutamine (prescription drug) answer

Can you take Procaine with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. A metabolite of procaine, aminobenzoic acid, can antagonize the effect of aminosalicylic acid.

Full Procaine + L-glutamine (prescription drug) answer

Can you take Guar Gum with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Guar gum might reduce the absorption of some oral drugs, potentially decreasing their effectiveness.

Full Guar Gum + L-glutamine (prescription drug) answer

Can you take Gum Arabic with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, gum arabic can alter the absorption of oral drugs due to its fiber content.

Full Gum Arabic + L-glutamine (prescription drug) answer

Can you take Slippery Elm with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.

Full Slippery Elm + L-glutamine (prescription drug) answer

Can you take St. John's Wort with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. St.

Full St. John's Wort + L-glutamine (prescription drug) answer

Can you take Tragacanth with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, tragacanth might alter absorption of oral drugs.

Full Tragacanth + L-glutamine (prescription drug) answer

Can you take Thyroid Extract with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Food and medications can interfere with thyroid hormone absorption.

Full Thyroid Extract + L-glutamine (prescription drug) answer

Can you take Agar with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Agar forms a thick gel, which may disrupt the absorption of nutrients and medications.

Full Agar + L-glutamine (prescription drug) answer

Can you take Algin with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, algin can alter the absorption of oral drugs.

Full Algin + L-glutamine (prescription drug) answer

Can you take Black Psyllium with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.

Full Black Psyllium + L-glutamine (prescription drug) answer

Can you take Carob with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, carob might also impair the absorption of oral drugs.

Full Carob + L-glutamine (prescription drug) answer

Can you take Karaya Gum with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Co-administration of oral drugs with bulk forming laxatives such as karaya gum may decrease, increase, or have no effect on the absorption o...

Full Karaya Gum + L-glutamine (prescription drug) answer

Can you take Marshmallow with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, mucilage in marshmallow might impair absorption of oral drugs.

Full Marshmallow + L-glutamine (prescription drug) answer

Can you take Xanthan Gum with L-glutamine (prescription drug)?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, xanthan gum can alter the absorption of oral drugs due to its fiber qualities.

Full Xanthan Gum + L-glutamine (prescription drug) answer

Can you take Activated Charcoal with L-glutamine (prescription drug)?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the rout...

Full Activated Charcoal + L-glutamine (prescription drug) answer

Can you take Coffee Charcoal with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Coffee charcoal can reduce the absorption of orally administered drugs and should be separated from oral drug administration by at least two...

Full Coffee Charcoal + L-glutamine (prescription drug) answer

Can you take European Mandrake with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concurrent use might increase absorption of some drugs because of inhibited gastrointestinal (GI) motility caused by European...

Full European Mandrake + L-glutamine (prescription drug) answer

Can you take Glucomannan with L-glutamine (prescription drug)?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, glucomannan may decrease absorption of drugs taken orally.

Full Glucomannan + L-glutamine (prescription drug) answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) L-glutamine (prescription drug) is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by L-glutamine (prescription drug), and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

L-glutamine (prescription drug) sits in 3 interaction categories. Open any one to see what the group means:

Oral Drugs 17 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

17 of the supplement ingredients on this page reach L-glutamine (prescription drug) through this category.

Aminolevulinic Acid 1 ingredient

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

1 of the supplement ingredient on this page reaches L-glutamine (prescription drug) through this category.

Aminosalicylic Acid 1 ingredient

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

1 of the supplement ingredient on this page reaches L-glutamine (prescription drug) through this category.

About L-glutamine (prescription drug)

L-glutamine is an amino acid used to reduce painful crises in people with sickle cell anemia.

Generic name: L-glutamine (prescription drug)  ·  Brand names: NutreStore, Endari.

See the full L-glutamine drug information

Related: does L-glutamine (prescription drug) deplete any nutrients?

L-glutamine (prescription drug) has 6 reported nutrient associations in the research literature — see the L-glutamine (prescription drug) nutrient depletion report.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against L-glutamine (prescription drug)

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against L-glutamine (prescription drug).

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Products that contain L-glutamine (prescription drug)-interacting ingredients

Real supplements from the NIH label database that contain the top interacting ingredients on this page — each one is worth a full label check before combining with L-glutamine (prescription drug).

DNA Evolve by Complete Ascentials contains Procaine DNA Evolve by Complete Ascentials contains Procaine
Pharmacist Counseling Corner

L-glutamine (prescription drug) & Supplements: Common Questions

What supplements interact with L-glutamine (prescription drug)?
More than you might expect — 19 in total, though they are far from equal: 1 are rated major, 9 moderate, and 9 minor. The ranked list on this page puts the ones that genuinely matter first, and every entry opens a full report on that exact pair. The highest-ranked right now: Activated Charcoal, Coffee Charcoal, European Mandrake.
Which L-glutamine (prescription drug) supplement interactions are the most serious?
Focus on the major group: Activated Charcoal. A major rating means the combination can be clinically significant, not that harm is guaranteed — but it's exactly the kind of thing to run past your pharmacist before your next dose, not after. Jump to the ranked list.
Can I take vitamins or supplements while on L-glutamine (prescription drug)?
Usually yes — most people on L-glutamine (prescription drug) can take most supplements. The catch is the exceptions, and they aren't always the exotic ones (St. John's Wort trips up more prescriptions than almost anything sold next to it). Look up each ingredient you actually take in the list above, and treat "no known interaction" as a green-ish light, not a guarantee. Try the label scanner or the interaction checker.
Do brands like NutreStore have the same supplement interactions as L-glutamine (prescription drug)?
Yes — NutreStore, Endari all contain L-glutamine (prescription drug), so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
Does L-glutamine (prescription drug) deplete any vitamins or nutrients?
It might — L-glutamine (prescription drug) has 6 reported nutrient-depletion associations in the research literature, which is a different question from interactions: instead of a supplement changing the drug, the drug may lower a nutrient over time. See the L-glutamine (prescription drug) nutrient depletion report for the specifics and what to discuss with your pharmacist.
What about L-glutamine (prescription drug) and my other medications?
This page covers L-glutamine (prescription drug) against supplements and herbal ingredients. Checking L-glutamine (prescription drug) against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker, or read the full L-glutamine drug information.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of October 1, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.