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
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.
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
New editorial updates
New source discoveries
Links appear automatically. Unreviewed discoveries are not verified medical findings.
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.

Fouad Abiad Media
RETATRUTIDE: EVERYTHING YOU NEED TO KNOW | Wes Christensen | Fouad Abiad's Real Bodybuilding Podcast ↗
Captions indexed · Automatic matches need review

Trevor Kruder
Episode 14: Peptides, Healing & Conscious Wellness: The Science and Spirit of Longevity ↗
Captions indexed · Automatic matches need review

Trevor Kruder
Episode 15: Peptides Explained: Sourcing, Quality & Women’s Health | Ginger Lichlyter ↗
Captions indexed · Automatic matches need review

Dr. Jones, DC
What Actually Causes Retatrutide Hunger (Not Glucagon) #retatrutide #glp1weightloss ↗
Title match · Captions not indexed
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.
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.
References & editorial record
- MedlinePlus · Glucagon ↗
- Intranasal Glucagon for Treatment of Insulin-Induced Hypoglycemia in Adults With Type 1 Diabetes: A Randomized Crossover Noninferiority Study. ↗
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.
