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Dietary supplement

Glutamine Decanate Unflavored Ingredients & Drug Interactions

by MuscleMeds

Glutamine Decanate Unflavored label
See full label image
Powder Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Glutamine Decanate Unflavored 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

The interaction bottom line Most serious interaction: Moderate

Glutamine Decanate Unflavored is a dietary supplement by MuscleMeds 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 Glutamine Decanate. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Glutamine Decanate Unflavored by MuscleMeds

Ask about any prescription or over-the-counter medication and we check it for interactions with Glutamine Decanate Unflavored by MuscleMeds — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Glutamine Decanate Unflavored by MuscleMeds

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 30, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 4 active ingredients.
  • “Glutamine Decanate” is listed as a grouped ingredient — the label gives one combined amount (5 Gram(s)) without saying how much of each component you get.

This powder contains 4 ingredients total. The active component is L-glutamine, an amino acid your body makes naturally and uses in muscle recovery, immune function, and gut health.

The other three ingredients — decanoic acid, PEG 8000, and PEG 3350 — are inactive excipients that help with the powder's texture and stability.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: muscle recovery and sports performance.
  • We looked for evidence on: Athletic performance, Exercise-induced muscle damage, Postoperative recovery, Wound healing, muscle protein synthesis, recovery — and 1 related terms.
  • The strongest evidence on file: Glutamine is rated "Possibly Effective" for Postoperative recovery (Natural Medicines).
  • Also on file: Glutamine is rated "Possibly Ineffective" for Athletic performance.
  • Also on file: Glutamine is rated "Insufficient Reliable Evidence To Rate" for Wound healing, Exercise-induced muscle damage.

L-glutamine is rated effective for sickle cell disease. It's rated possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma.

If you're considering this product for one of those uses, talk with your doctor about whether glutamine makes sense for your situation.

The evidence, ingredient by ingredient Glutamine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

L-glutamine is generally well tolerated in healthy adults. The most common side effects are gastrointestinal — belching, bloating, flatulence, constipation, diarrhea, nausea, and vomiting, especially at high doses (10–30 grams daily).

Headache and dizziness have also been reported; one patient's dizziness resolved when the dose was lowered. Very rarely, mania and hypomania have occurred in people with bipolar disorder.

If you have kidney or liver disease, use this product only under medical supervision. There isn't enough safety data to recommend supplemental doses during breastfeeding — talk with your doctor or pharmacist if you're nursing.

Side effects, ingredient by ingredient Glutamine

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Glutamine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: seizure medications.
  • For scale: 50 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take anticonvulsant (seizure) medications, check with your doctor or pharmacist before starting this product — glutamine may reduce how well your seizure drug works. We hold no interaction data for the other three ingredients, so if you're on any prescription medication, run it through the search tool on this page to be sure.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Glutamine Decanate may help with sickle cell disease or recovery from serious illness or surgery, but it's most important if you take anticonvulsants — you need to check with your doctor or pharmacist first. Expect possible stomach upset, especially at higher doses.

Anyone with kidney or liver disease should only use it under medical supervision.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 1, 2012.

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

At a glance

General information

Key facts about Glutamine Decanate Unflavored, straight from the product label.

Brand MuscleMeds
Barcode (UPC) 891597002610
Net contents 10.58 oz.; 300 g
Market status On market
Date entered into DSLD Jun 1, 2012
DSLD ID 3717
Product type Non-nutrient/non-botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
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 Glutamine Decanate Unflavored by MuscleMeds, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
5 Gram(s)
Maximum serving Sizes:
5 Gram(s)
Servings per container
60
UPC/BARCODE
891597002610
IngredientAmount% DV
L-Glutamine0 NP--
Decanoic Acid0 NP--
PEG 80000 NP--
PEG 33500 NP--
Glutamine Decanate5 Gram(s)--

Tap any ingredient to jump to its full detail below.

Label statements
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.
Suggested/Recommended/Usage/Directions

DIRECTIONS: Mix one level scoop of GLUTAMINE DECANATE with 8 to 10 oz. of water, juice or your favorite sports drink. Take 1 to 2 times daily.

Precautions

Keep out of reach of children.

Do not purchase if seal is broken.

FDA Disclaimer Statement

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Storage

Protect from heat, light and moisture.

Store at 15°-30°C (59°-86°F)

General Statements

60 SERVINGS!

DecaDrive Shifts Glutamine Replenishment Into Overdrive!* GLUTAMINE DECANATE provides a potent dose of purified, micronized glutamine via the scientifically advanced DecaDrive Technology, which is designed to promote faster absorption and utilization of glutamine. DecaDrive Technology utilizes the pharmaceutical delivery compounds PEG and Decanoate to help to promote increased glutamine absorption and uptake in the intestines. This powerful infusion of GLUTAMINE DECANATE delivers maximum anabolic muscle building, anti-catabolic muscle protection and improved recovery.*

Dietary Supplement

Enhances Protein Synthesis*

GLUTAMINE DECANATE DECADRIVE DELIVERY

Increases Muscle Cell Volumizing*

Increases Muscle Growth & Recovery*

PHARMACEUTICAL DELIVERY

PROFESSIONAL STRENGTH MICRONIZED L-GLUTAMINE

The New Bodybuilding Standard In Glutamine Supplementation!* GLUTAMINE DECANATE's scientifically advanced purified and potent Glutamine with DecaDrive delivery has set a new standard in amino acid supplementation. Through the development of an advanced pharmaceutical delivery technology, MuscleMeds scientists have created a superior glutamine with enhanced absorption and bio-availability.*

What GLUTAMINE DECANATE Does For Athletes!* Glutamine is one of the most abundant amino acids found in skeletal muscles and throughout the body, dominating the amino acid metabolic pool. Glutamine supplies the metabolic building blocks for creating other amino acids, protein, nucleotides used to make DNA and RNA, and is even involved in energy production. This makes glutamine involved directly in muscle cell growth, protection, fullness and performance. But during prolonged periods of training, glutamine levels typically become depleted faster than the body can replenish them. This is what makes glutamine a conditionally essential amino acid and an important amino acid to supplement to ensure your body is replenished and maintains a positive glutamine balance. Glutamine is also a component of glutathione, one of the body's most important and powerful antioxidants that protects cells and body tissues from free radical damage and breakdown.*

Brand IP Statement(s)

DecaDrive(TM) Technology for Enhanced Absorption*

Seals/Symbols

DECADRIVE DELIVERY

MuscleMeds(TM)PERFORMANCE TECHNOLOGIES

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Glutamine Decanate Unflavored by MuscleMeds label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Glutamine Decanate Unflavored label

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)
What’s inside

The Ingredients in Glutamine Decanate Unflavored by MuscleMeds

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size5 Gram(s) Dosage formPowder Servings per container60 Amounts shown are per serving.

Glutamine Decanate

Interacts with
50 drugs
5 Gram(s) per serving

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...

Glutamine Decanate monograph & interactions
  • › L-Glutamine
  • › Decanoic Acid
  • › PEG 8000
  • › PEG 3350
Interaction report

Glutamine Decanate Unflavored by MuscleMeds Drug Interactions

Want to check YOUR meds against Glutamine Decanate Unflavored?

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 checker
50Drugs
50 Moderate

Ingredients driving the most interactions

Glutamine Decanate 50

Individual Drug Interactions

The ingredients in Glutamine Decanate Unflavored interact with 50 drugs. Click any drug to see the details.

1 of the 1 ingredient in Glutamine Decanate Unflavored interact with drugs. Each result below shows which ingredient is responsible. Glutamine Decanate

Each ingredient & the kinds of drugs it affects

For each ingredient in Glutamine Decanate Unflavored 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.

Glutamine Decanate1 drug type · 50 drugs

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.

Likelihood Possible Evidence D
Glutamine Decanate full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Glutamine Decanate Unflavored, from the product label.

MuscleMeds

See all MuscleMeds products
Name
MuscleMeds Performance Technologies
Street Address
163 E. Main Street, Suite #324
City
Little Falls
State
NJ
ZipCode
07424
Phone Number
1.888.575.7067
Web Address
www.MuscleMedsRx.com
Pharmacist Counseling Corner

Glutamine Decanate Unflavored by MuscleMeds: Common Questions

Does Glutamine Decanate Unflavored by MuscleMeds interact with any medications?
Yes. Based on its ingredients, Glutamine Decanate Unflavored has a known interaction with 50 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Glutamine Decanate Unflavored contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to take while breastfeeding?
There isn't enough safety data to know. Talk with your doctor or pharmacist for personalized advice — they can help you decide whether supplemental glutamine makes sense for you while nursing.
What are the most common side effects?
Stomach troubles are most likely — belching, bloating, flatulence, constipation, diarrhea, nausea, and vomiting, mainly when doses are high (10–30 grams daily). Headache and dizziness have also been reported but are less common.
Will this help me build muscle or recover from a workout?
The data we hold shows glutamine is effective for sickle cell disease and possibly effective for recovery after major surgery, trauma, or critical illness. We don't have evidence established for routine muscle building or typical workout recovery in our system.
Is it safe if I have kidney or liver disease?
You should only use this product under medical supervision if you have kidney or liver disease. Talk with your doctor or pharmacist before taking it.
Can I take this if I'm on seizure medication?
There's a moderate theoretical concern — glutamine breaks down into a brain chemical that might work against anticonvulsants. No cases have been reported in patients, but you need to check with your doctor or pharmacist before taking it alongside seizure medication.

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

Not sure if Glutamine Decanate Unflavored is safe with your meds?

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Ask a pharmacist

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.

Glutamine Decanate Unflavored label
Go deeper

The Full Monographs Behind Glutamine Decanate Unflavored’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Glutamine

Interacts with 50 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 cell disease complications, but for most...

Read the full Glutamine monograph →
Sources

Sources & How We Checked

Glutamine Decanate Unflavored'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.

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
  1. Miller AL. Therapeutic considerations of L-glutamine: a review of the literature. Altern Med Rev 1999;4:239-48..
  2. 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
  3. Mebane AH. L-Glutamine and mania. Am J Psychiatry 984;141:1302-3.
  4. Meldrum BS. Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr 2000;130:1007S-15S.. PubMed
  5. Garlick PJ. Assessment of the safety of glutamine and other amino acids. J Nutr 2001;131:2556S-61S.. PubMed
  6. Chapman AG. Glutamate and epilepsy. J Nutr 2000;130:1043S-5S.. PubMed
  7. Ziegler TR. Glutamine supplementation in cancer patients receiving bone marrow transplantation and high dose chemotherapy. J Nutr 2001;131:2578S-84S.. PubMed
  8. 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
  9. Endari (l-glutamine) [package insert]. Torrance, CA: Emmaus Medical,Inc; 2017.
  10. 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.
  11. 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

See these in context on the Glutamine monograph →

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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