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

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AGENT PROFILE

Arginine

Nonpeptide agent

Urea-cycle amino acid and nitric-oxide synthesis substrate.

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: 6322

Molecular formula: C6H14N4O2

IUPAC: (2S)-2-amino-5-(diaminomethylideneamino)pentanoic acid

Source: PC-ARGININE

PubChem

Chemical structure reference

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

Mechanism

Urea-cycle amino acid and nitric-oxide synthesis substrate.

Evidence and critical reading

Reported scientific and empirical uses

Reported muscle and performance · Replacement and nutritional context · Cardiovascular and vascular function

Promoted for blood flow, performance and amino-acid blends; effect depends on disease/exposure.

Human evidence

VINTAGE MI did not improve vascular/ventricular function after infarction; six deaths occurred with arginine and none with placebo, and the study stopped. Do not generalize vascular safety.

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

VINTAGE MI did not improve vascular/ventricular function after infarction; six deaths occurred with arginine and none with placebo, and the study stopped. Do not generalize vascular safety.

VINTAGE MI did not improve vascular/ventricular function after infarction; six deaths occurred with arginine and none with placebo, and the study stopped. Do not generalize vascular safety.

Source-specific regimens

Descriptive source observations, not individual recommendations.

Regulatory product labeling

Listed regimens preserve source/context. An empty layer means no regimen attributable to this identity was verified in this review; it does not prove universal absence of data.

Human-study exposure

NOT A RECOMMENDATION.Each amount is attributed to the source identified for that entry: regulatory product labeling, human research, or community and practice sources. These source categories have different evidentiary roles. They are not medical advice, not a protocol, not a recommended or safe dose, and not evidence that it works. Do not use them to start, change or stop any treatment. Talk to a qualified healthcare professional.

Reported by L-arginine therapy in acute myocardial infarction: the Vascular Interaction With Age in Myocardial Infarction (VINTAGE MI) randomized clinical trial.

3 g · Target amount per administration

Frequency
Three times/day
Duration
Up to six planned months; trial stopped
Route
Oral
Context
Post-infarction: mortality signal; critical harm record, not a use proposal.
Presentation
A dosage-form presentation is not specified in the reviewed record.
Interpretation
Research exposure: not a prescription or starting regimen. It does not reconstruct protocol titration, exclusions or monitoring.

PMID16391217 · October 16, 2026

NOT A RECOMMENDATION.Each amount is attributed to the source identified for that entry: regulatory product labeling, human research, or community and practice sources. These source categories have different evidentiary roles. They are not medical advice, not a protocol, not a recommended or safe dose, and not evidence that it works. Do not use them to start, change or stop any treatment. Talk to a qualified healthcare professional.

Empirical handbook

Listed regimens preserve source/context. An empty layer means no regimen attributable to this identity was verified in this review; it does not prove universal absence of data.

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

The post-infarction signal is clinically material. Plausible additive vasodilation with antihypertensives is not a quantified interaction for each 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

PMID16391217 · Randomized controlled trial

After myocardial infarction.

Oral, up to six planned months.

No vascular/ventricular benefit; six versus zero deaths, trial stopped.

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

n = 153

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

Arginine · 785 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

NCT06991738 · 177Lu-DOTA-EB-TATE in Adult Patients With Metastatic, Radioactive Iodine Non-Responsive Oncocytic (Hurthle-Cell) Thyroid CancerRegistry status: Not yet recruitingLast update posted: October 16, 2026Query verification: October 16, 2026

NCT07871786 · Efficacy of a Sonic Toothbrush and 8% Arginine Toothpaste in Reducing Dentinal HypersensitivityRegistry status: CompletedLast update posted: October 16, 2026Query verification: October 16, 2026

NCT07110532 · pH1N1 Blinded Challenge StudyRegistry status: RecruitingLast update posted: October 16, 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-ARGININE

    PubChem L-arginine (CID 6322)

    October 16, 2026

  2. PMID16391217

    L-arginine therapy in acute myocardial infarction: the Vascular Interaction With Age in Myocardial Infarction (VINTAGE MI) randomized clinical trial.

    Schulman SP, Becker LC, Kass DA, Champion HC, Terrin ML, Forman S, Ernst KV, Kelemen MD, Townsend SN, Capriotti A, Hare JM, Gerstenblith G.

    October 16, 2026

  3. SEARCH-PUBMED-arginine

    PubMed/MED targeted search: TITLE_ABS:"L-arginine" AND TITLE_ABS:"myocardial infarction" AND TITLE_ABS:randomized

    October 16, 2026

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