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Peptide encyclopedia/ Glucagon
Illustration for Glucagon

THE PEPSRADAR ENCYCLOPEDIA

Glucagon

Release of stored glucose

Prescription medicines · Sources checked 2026-10-04

Read the studies ↓Explore the molecule ↗

Glucagon AT A GLANCE

The question behind the molecule.

Read findings and limitations ↓
1 selected publicationContext mattersEmergency treatment of severe hypoglycemia is a distinct use from metabolic weight-management research.

What is Glucagon?

Glucagon is a hormone medicine used to raise dangerously low blood glucose. It serves a different role from medicines aimed at lowering glucose or weight.

Biological role or research focus

Release of stored glucose.

Emergency treatment of severe hypoglycemia is a distinct use from metabolic weight-management research.

Role reference: MedlinePlus · Glucagon ↗

Class / identity
Glucose-raising hormone
Main research area
Severe hypoglycemia rescue
Evidence featured
Human randomized crossover trial
Source check
October 4, 2026

Source: MedlinePlus · Glucagon ↗

Molecular structure

Glucagon: 2d molecular structure. The cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.⤢ Enlarge 2D
2D molecular structureThe cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.PubChem · CID 16132283 ↗

Mechanism & research rationale

It prompts the liver to release stored glucose. Certain diagnostic uses also take advantage of its effects on digestive-muscle movement.

Source: MedlinePlus · Glucagon ↗

Clinical uses & product context

Approved preparations support emergency treatment of severe hypoglycemia; some injectable products also have diagnostic uses. The linked trial compares nasal and intramuscular rescue formulations.

Source: MedlinePlus · Glucagon ↗

What does the evidence show?

Selected published evidence, with the population, findings, and limits kept together. These original summaries draw on publication abstracts; they are not a systematic review.

Human randomized crossover trial · 2016

Nasal versus intramuscular glucagon

Intranasal Glucagon for Treatment of Insulin-Induced Hypoglycemia in Adults With Type 1 Diabetes: A Randomized Crossover Noninferiority Study.

Population / model
75 adults with type 1 diabetes under supervised experimental hypoglycemia.
Study design
Each participant received the two formulations on separate study visits; glucose recovery was assessed within 30 minutes.
Main finding
Success occurred in 98.7% of nasal visits versus 100% of intramuscular visits. Mean recovery times were 16 and 13 minutes, respectively.
Limits & context
This was a controlled rescue-treatment study, not a comparison of unsupervised use in every emergency. The nasal and injected products have different delivery systems.

Source: Intranasal Glucagon for Treatment of Insulin-Induced Hypoglycemia in Adults With Type 1 Diabetes: A Randomized Crossover Noninferiority Study. ↗

Read the original paper for methods, adverse events, funding, and conflicts of interest. Publisher access may require a subscription.

Further reading · 4 additional publication links

Exact-name PubMed search checked 2026-10-04. These records have not been appraised. A name match can include related compounds, combinations, or other formulations; it does not establish safety or benefit.

Hepatic glucagon action: beyond glucose mobilization. ↗
Physiological reviews · 2024 Jul 1 · Journal Article, Review, Research Support, Non-U.S. Gov't

100 years of glucagon and 100 more. ↗
Diabetologia · 2023 Aug · Journal Article, Review, Research Support, Non-U.S. Gov't
Read available full text ↗

The past, present, and future physiology and pharmacology of glucagon. ↗
Cell metabolism · 2022 Nov 1 · Journal Article, Review, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural
Read available full text ↗

A famsin-glucagon axis mediates glucose homeostasis. ↗
Cell metabolism · 2025 Mar 4 · Journal Article

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Safety & precautions

Key precautions

Nausea and vomiting can occur. Pheochromocytoma, insulinoma, and other relevant conditions require product-specific review. A rescue product’s instructions and emergency-care plan matter more than a generic peptide description.

Source: MedlinePlus · Glucagon ↗

This is not a complete list of contraindications, interactions, or adverse effects. Medicine labels apply to specific products and indications; research-use listings are not interchangeable with approved medicines.

What are people discussing?

No editorial transcript note has been reviewed for this profile yet. Below are the matching video records available for exploration; title and caption matches are not verified claims.

Watch the source discussions

4 matching video records · 3 with captions indexed.

Across the full library, 30 caption files are indexed from 20,199 inventoried videos. Most transcripts remain unreviewed. Select a thumbnail or timestamp to watch inside PepsRadar. Thumbnail images load from YouTube.

Sources & supplier listings

Listings are grouped by the vendor’s stated identity. Blends and modified derivatives are labeled separately. Inclusion is not a quality assessment or an endorsement.

No verified matching catalog listing yet

We have not added a supplier for this profile. Missing products and coded listings are not filled with guesses.

Catalog checked 2026-10-04. Seller listings retain their stated intended use. Shops covered: BioLongevity Labs, BioLongevity Supplements, American Peptides, PSPeptides. This is not a market-wide comparison. Affiliate participation does not determine evidence or editorial coverage.

Questions worth asking

  • Which indication and formulation does the source describe?
  • Does the video make a broader claim than the source supports?
  • Emergency treatment of severe hypoglycemia is a distinct use from metabolic weight-management research.
  • What adverse effects, uncertainty, and conflicts of interest does the original source report?

Frequently asked questions

Why can glucagon raise glucose while GLP-1 medicines lower it?

They are different hormones with different targets. Similar naming does not imply the same physiological role.

Source: MedlinePlus · Glucagon ↗

Did the nasal study involve real-world unconscious emergencies?

It used supervised insulin-induced hypoglycemia. That controlled setting is an important limitation when interpreting the result.

Source: Intranasal Glucagon for Treatment of Insulin-Induced Hypoglycemia in Adults With Type 1 Diabetes: A Randomized Crossover Noninferiority Study. ↗

References & editorial record

Source notes checked 2026-10-04. Original PepsRadar summaries. Not reviewed by a medical professional. Topic grouping is editorial navigation, not a treatment recommendation. Video notes specify which excerpts were reviewed; no full transcripts are published.

For research and education only. This page does not provide medical advice, diagnosis, or treatment. Research-only listings are not instructions for human use.

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MOLECULAR ATLAS

Glucagon

Download illustration ↓Source record ↗
Glucagon 2d molecular structure

The cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.