L-Glutamine 800 mg Ingredients & Drug Interactions
by NutriCology
What is this page for?
First and foremost: checking L-Glutamine 800 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
L-Glutamine 800 mg is a dietary supplement by NutriCology with 1 active ingredient. Its ingredients are commonly taken for muscle recovery and sports performance, gut health and 'leaky gut', recovery from severe illness or injury.Based on those ingredients, 50 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Glutamine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against L-Glutamine 800 mg by NutriCology
Ask about any prescription or over-the-counter medication and we check it for interactions with L-Glutamine 800 mg by NutriCology — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of L-Glutamine 800 mg by NutriCology
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: L-glutamine, an amino acid your body makes naturally and uses for gut health, immune function, and muscle recovery. The capsule also holds inactive ingredients (hydroxypropyl methylcellulose, microcrystalline cellulose, and magnesium stearate) that help form and stabilize the supplement.
Does it work?
Moderate evidence
L-glutamine is rated effective for sickle cell disease. For HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma, the evidence is listed as possibly effective — meaning some research supports it, but more data would strengthen confidence.
The facts we hold don't describe what dose or duration was studied for these uses, so talk with your doctor about whether it fits your specific situation.
How safe is it?
Well-documented data
L-glutamine is generally well tolerated by healthy adults. The most common side effects are gastrointestinal: belching, bloating, constipation, flatulence, diarrhea, nausea, vomiting, and GI pain.
Headache and musculoskeletal pain have also been reported. A small number of people have experienced dizziness or, in rare cases among those with bipolar disorder, mood changes (mania or hypomania).
If you have kidney or liver disease, use this only under medical supervision. Not enough safety data exists for pregnancy, so talk with your doctor before taking it if you're pregnant.
The same applies to breastfeeding — safety information is limited, so check with your doctor or pharmacist for personalized advice.
Meds to double-check
Moderate interaction found
If you take anticonvulsant medications (drugs used to prevent seizures), check with your doctor or pharmacist before starting L-glutamine. Glutamine may theoretically reduce how well these drugs work, though this hasn't been confirmed in patients yet.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
L-glutamine is well studied for sickle cell disease and has some evidence supporting use in wasting and recovery from surgery or critical illness. If you take an anticonvulsant medication, check with your doctor or pharmacist before starting this supplement.
People with kidney or liver disease should use it only under medical supervision. Talk it over with your own healthcare provider to see if it makes sense for you.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2020.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about L-Glutamine 800 mg, straight from the product label.
| Brand | NutriCology |
|---|---|
| Barcode (UPC) | 713947540507 |
| Net contents | 250 Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2020 |
| DSLD ID | 235394 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for L-Glutamine 800 mg by NutriCology, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Glutamine | 1.6 Gram(s) | -- |
Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Magnesium Stearate
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula
L-Glutamine, a free form amino acid. High purity, well tolerated.
Suggested/Recommended/Usage/Directions
Suggested Use As a dietary supplement, 1 or 2 capsules one to three times daily between meals, or as directed by a healthcare practitioner.
Storage
Keep in a cool, dry place, tightly capped.
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
General Statements
NutriCology Innovative Nutrition
Formulation
Brain and GI Tract fuel Hypoallergenic
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Glutamine 800 mg by NutriCology label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in L-Glutamine 800 mg by NutriCology
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container125 Amounts shown are per serving.
L-Glutamine
Interacts with50 drugs
Glutamine is the most abundant amino acid in the body and is usually made in your muscles. A prescription form is FDA-approved to help reduce sickle c...
L-Glutamine monograph & interactionsOther (inactive) ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.
L-Glutamine 800 mg by NutriCology Drug Interactions
HelloPharmacist Interaction Report
L-Glutamine 800 mg by NutriCology interacts with anticonvulsant medications (drugs used to prevent seizures).
Glutamine is broken down in your body into glutamate, an excitatory brain chemical that may theoretically work against anticonvulsants and reduce how well they prevent seizures. This interaction hasn't been reported in actual patients yet, but it's a documented theoretical concern.
Read the full breakdown — every affected drug type, severity by severity
If you take any anticonvulsant medication — whether for seizures, nerve pain, or another condition — check with your doctor or pharmacist before starting this supplement. Altogether, these interactions span 50 individual medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against L-Glutamine 800 mg?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in L-Glutamine 800 mg interact with 50 drugs. Click any drug to see the details.
1 of the 1 ingredient in L-Glutamine 800 mg interact with drugs. Each result below shows which ingredient is responsible. L-Glutamine
AcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Acetazolamide interactionAminophylline, Amobarbital, EphedrineAmesec
How Aminophylline, Amobarbital, Ephedrine interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Aminophylline, Amobarbital, Ephedrine interactionAmobarbitalAmytal
How Amobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Amobarbital interactionAmobarbital, Ephedrine SulfateEphedrine & Amytal
How Amobarbital, Ephedrine Sulfate interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Amobarbital, Ephedrine Sulfate interactionAmobarbital, SecobarbitalTuinal
How Amobarbital, Secobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Amobarbital, Secobarbital interactionAprobarbital, Butabarbital, PhenobarbitalTriple Barbital
How Aprobarbital, Butabarbital, Phenobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Aprobarbital, Butabarbital, Phenobarbital interactionBelladonna, Caffeine, Ergotamine, PentobarbitalMicomp PB
How Belladonna, Caffeine, Ergotamine, Pentobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Belladonna, Caffeine, Ergotamine, Pentobarbital interactionBelladonna, PhenobarbitalBellophen, Susano
How Belladonna, Phenobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Belladonna, Phenobarbital interactionBellafoline, Caffeine, Ergotamine Tartrate, PentobarbitalCafergot PB
How Bellafoline, Caffeine, Ergotamine Tartrate, Pentobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Bellafoline, Caffeine, Ergotamine Tartrate, Pentobarbital interactionButalbital, Phenobarbital, SecobarbitalTribarb
How Butalbital, Phenobarbital, Secobarbital interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Butalbital, Phenobarbital, Secobarbital interactionCarbamazepineCarbatrol, Carnexiv, Equetro, Tegretol, Tegretol XR
How Carbamazepine interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Carbamazepine interactionCenobamateXcopri
How Cenobamate interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Cenobamate interactionClobazamFrisium, Onfi, Sympazan
How Clobazam interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Clobazam interactionClonazepamCeberclon, Klonopin, Rivotril
How Clonazepam interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Clonazepam interactionClorazepateTranxene, Tranxene SD, Tranxene T-Tab
How Clorazepate interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Clorazepate interactionDiazepamDiastat AcuDial, Valium, Valium injection, Valtoco
How Diazepam interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Diazepam interactionDivalproex SodiumDepakote
How Divalproex Sodium interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Divalproex Sodium interactionEphedrine, Phenobarbital, TheophyllineTedral
How Ephedrine, Phenobarbital, Theophylline interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Ephedrine, Phenobarbital, Theophylline interactionEthosuximideZarontin
How Ethosuximide interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Ethosuximide interactionEthotoinPaganone
How Ethotoin interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Ethotoin interactionFelbamateFelbatol
How Felbamate interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Felbamate interactionFosphenytoinCerebyx
How Fosphenytoin interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Fosphenytoin interactionFosphenytoin SodiumSesquient
How Fosphenytoin Sodium interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Fosphenytoin Sodium interactionGabapentinGralise, Neurontin
How Gabapentin interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Gabapentin interactionGabapentin EnacarbilHorizant
How Gabapentin Enacarbil interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Gabapentin Enacarbil interactionLamotrigineLamictal
How Lamotrigine interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Lamotrigine interactionLevetiracetamElepsia XR, Keppra, Spritam
How Levetiracetam interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Levetiracetam interactionLorazepamAtivan
How Lorazepam interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Lorazepam interactionMagnesium Sulfate (prescription Drug)Bilagog, Magnesium Sulfate
How Magnesium Sulfate (prescription Drug) interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Magnesium Sulfate (prescription Drug) interactionMephenytoinMesantoin
How Mephenytoin interacts with L-Glutamine 800 mg — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Mephenytoin interactionEach ingredient & the kinds of drugs it affects
For each ingredient in L-Glutamine 800 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
L-Glutamine
Anticonvulsants
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Glutamine is metabolized to the excitatory neurotransmitter glutamate. Glutamate might have antagonistic effects with anticonvulsant drugs. However, this interaction has not yet been reported in humans.
Brand information
Manufacturer and brand details for L-Glutamine 800 mg, from the product label.
NutriCology
See all NutriCology products- Name
- NutriCology
- City
- South Salt Lake
- State
- UT
- ZipCode
- 84115
- Phone Number
- 800.545.9960
- Web Address
- www.nutricology.com
L-Glutamine 800 mg by NutriCology: Common Questions
Does L-Glutamine 800 mg by NutriCology interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What side effects should I expect from L-glutamine?
Is L-glutamine safe during pregnancy?
Can I take L-glutamine while breastfeeding?
What is L-glutamine actually used for?
Do I need to worry about this product if I have kidney or liver disease?
Will L-glutamine interfere with my seizure medication?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Glutamine 800 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind L-Glutamine 800 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
L-Glutamine 800 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 11 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Glutamine 11 references
- Miller AL. Therapeutic considerations of L-glutamine: a review of the literature. Altern Med Rev 1999;4:239-48..
- Bozzetti F, Biganzoli L, Gavazzi C, et al. Glutamine supplementation in cancer patients receiving chemotherapy: a double-blind randomized study. Nutrition 1997;13:748-51.. PubMed
- Mebane AH. L-Glutamine and mania. Am J Psychiatry 984;141:1302-3.
- Meldrum BS. Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr 2000;130:1007S-15S.. PubMed
- Garlick PJ. Assessment of the safety of glutamine and other amino acids. J Nutr 2001;131:2556S-61S.. PubMed
- Chapman AG. Glutamate and epilepsy. J Nutr 2000;130:1043S-5S.. PubMed
- Ziegler TR. Glutamine supplementation in cancer patients receiving bone marrow transplantation and high dose chemotherapy. J Nutr 2001;131:2578S-84S.. PubMed
- Laviano A, Molfino A, Lacaria MT, Canelli A, De Leo S, Preziosa I, Rossi Fanelli F. Glutamine supplementation favors weight loss in nondieting obese female patients. A pilot study. Eur J Clin Nutr. 2014 Nov;68(11):1264-6. PubMed
- Endari (l-glutamine) [package insert]. Torrance, CA: Emmaus Medical,Inc; 2017.
- Niihara Y, Miller ST, Kanter J, et al. A Phase 3 Trial of l-Glutamine in Sickle Cell Disease. N Engl J Med 2018;379(3):226-35. doi: 10.1056/NEJMoa1715971.
- Ogden HB, Child RB, Fallowfield JL, et al. Gastrointestinal Tolerance of Low, Medium and High Dose Acute Oral l-Glutamine Supplementation in Healthy Adults: A Pilot Study. Nutrients. 2020;12(10):2953. PubMed
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