Nutrients and cofactors
Conceptual educational illustration of Glutamine in a glass specimen jar, labelled MOLECULE PROFILE.

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AGENT PROFILE

Glutamine

Nonpeptide agent

Amino acid/metabolic substrate for multiple cell types; metabolic need does not imply supplementation benefit in every illness.

Sources checked · October 16, 2026

Published for review · Scientific, medical, translation and citation review pending. Reported uses are not authorized indications. Frequency reflects mentions in supplied sources, not sales or global clinical prevalence.

Identity and synonyms

Catalog label is recorded; analytical identity and equivalence are not established.

Nonpeptide agent · Amino acid or derivative

Detailed molecular class: Nonpeptide agent; see mechanism for subtype

Supplied sequence or chemical reference

PubChem CID: 5961

Molecular formula: C5H10N2O3

IUPAC: (2S)-2,5-diamino-5-oxopentanoic acid

Source: PC-GLUTAMINE

PubChem

Chemical structure reference

Database chemical reference; does not certify supplier vial, salt, isomer or formulation.

Mechanism

Amino acid/metabolic substrate for multiple cell types; metabolic need does not imply supplementation benefit in every illness.

Evidence and critical reading

Reported scientific and empirical uses

Gut and barrier · Immune modulation and inflammation · Replacement and nutritional context

Mentioned for gut, recovery and nutrition; distinguish enteral/parenteral nutrition from wellness blends.

Human evidence

REDOXS included 1,223 critically ill patients with multiorgan failure: early glutamine supplementation increased hospital/six-month mortality. Do not generalize “safe gut repair”.

Preclinical evidence

Do not equate mechanism, cell culture or animal work with a clinical outcome. The specific level is detailed in the evidence assessment.

Critical reading and limitations

REDOXS included 1,223 critically ill patients with multiorgan failure: early glutamine supplementation increased hospital/six-month mortality. Do not generalize “safe gut repair”.

REDOXS included 1,223 critically ill patients with multiorgan failure: early glutamine supplementation increased hospital/six-month mortality. Do not generalize “safe gut repair”.

Source-specific regimens

Descriptive source observations, not individual recommendations.

Regulatory product labeling

No numerical human dose is assigned: reviewed sources did not verify a regimen attributable to this material, route and indication. Other molecules’ doses, animal exposures, vial amounts and dietary requirements are not substituted.

Human-study exposure

No numerical human dose is assigned: reviewed sources did not verify a regimen attributable to this material, route and indication. Other molecules’ doses, animal exposures, vial amounts and dietary requirements are not substituted.

Empirical handbook

No numerical human dose is assigned: reviewed sources did not verify a regimen attributable to this material, route and indication. Other molecules’ doses, animal exposures, vial amounts and dietary requirements are not substituted.

Regulation and safety

Jurisdiction-specific regulatory context

This record does not verify FDA/EMA authorization of the commercial identity. Where a specific medicine/product exists, jurisdiction/indication are detailed in cited sources; they do not transfer to supplier material.

Adverse effects and unknowns

Critical illness carries a material harm signal. Do not extrapolate a nutritional indication/oral exposure to every route/blend.

Contraindications

A complete list must match the exact authorized product. For experimental materials without verified human labeling, a complete contraindication set is not established here. No list does not mean safety.

Interactions

Separate documented interaction, pharmacologic plausibility and unknown interaction. Absence of a blend trial does not establish compatibility.

Studies and trials

Selected studies

PMID23594003 · Randomized controlled trial

Critically ill patients with multiorgan failure.

IV/enteral, intensive-care context.

Higher hospital/six-month mortality with glutamine.

Trial product/population; does not authenticate supplier material or permit simple indirect comparisons.

n = 1223

Trials attributed in the package

No trials are attributed in this record.

Trial registration does not establish efficacy or validate commercial material.

Query candidates; attribution pending

Glutamine · 298 unfiltered query results, not authenticated trials

Query verification: October 16, 2026

Exact phrase intervention query; first three most recently updated records, not exhaustive. Aliases may be missed and heterogeneous products may appear. The total is the unfiltered registry query count, not authenticated trials. Source-integrity holds are excluded from ordinary listings.

View trial registry query

NCT07840521 · Investigating Near-Threshold Perception During Ultrasonic Deep Brain StimulationRegistry status: Not yet recruitingLast update posted: October 13, 2026Query verification: October 16, 2026

NCT07864571 · Trial of First-line Gemcitabine and Nab-paclitaxel With or Without L-glutamine in Advanced Pancreatic CancerRegistry status: Not yet recruitingLast update posted: October 8, 2026Query verification: October 16, 2026

NCT07773246 · Phase 1/2 Study of KRRO-121 in Healthy Volunteers and Patients With UCDRegistry status: RecruitingLast update posted: October 8, 2026Query verification: October 16, 2026

Source issues and references

References include queries and bibliographic handbook attributions; not all are clinical studies. Human review remains pending.

  1. PC-GLUTAMINE

    PubChem L-glutamine (CID 5961)

    October 16, 2026

  2. PMID23594003

    A randomized trial of glutamine and antioxidants in critically ill patients.

    Heyland D, Muscedere J, Wischmeyer PE, Cook D, Jones G, Albert M, Elke G, Berger MM, Day AG, Canadian Critical Care Trials Group.

    October 16, 2026

  3. SEARCH-PUBMED-glutamine

    PubMed/MED targeted search: TITLE_ABS:glutamine AND TITLE_ABS:"critically ill" AND TITLE_ABS:randomized

    October 16, 2026

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