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Compounds / Retatrutide

Retatrutide

Full name
Retatrutide (GIP/GLP-1/glucagon triple agonist)
Mechanism
Triple receptor agonist (GIP, GLP-1, glucagon). Adds glucagon-receptor agonism to increase energy expenditure alongside appetite reduction and improved glycaemic control.
Half-life
~6 days (reported)
Administration
subcutaneous
Typical dosage*
low: trial titration (1-2mg) · typical: investigational · high: up to 12mg/week in trials
Researched for
investigational: obesity, type 2 diabetes (clinical trials)
Reported side effects
GI: nausea, vomiting, diarrhoea (dose-related in trials), long-term safety unknown
Interactions
not characterised — investigational
Commonly combined
investigational monotherapy in trials
Scheduling
🇦🇺 AUInvestigational — not approved/registered
🇺🇸 USInvestigational — not FDA-approved (Phase 3)
🇬🇧 UKInvestigational — not licensed
Regulatory status
INVESTIGATIONAL ONLY. Not approved anywhere. Grey-market sale as 'research peptide' is unverified material.

*Doses are commonly-reported figures from public sources, not a recommendation. Educational only.

15studies
9faqs
metabolicweight-managementinvestigational

Studies (15)

YearTitle / venueSource
2026Retatrutide for the treatment of obesity, obstructive sleep apnea and knee osteoarthritis: Rationale and design of the TRIUMPH registrational clinical trials
Diabetes, obesity & metabolism · preclinical
PMID 41090431
2025Retatrutide-A Game Changer in Obesity Pharmacotherapy
Biomolecules · preclinical
PMID 40563436
2025Effects of retatrutide on body composition in people with type 2 diabetes: a substudy of a phase 2, double-blind, parallel-group, placebo-controlled, randomised trial
The lancet. Diabetes & endocrinology · human
PMID 40609566
2025Emerging pharmacotherapies for obesity: A systematic review
Pharmacological reviews · preclinical
PMID 39952695
2025What is the pipeline for future medications for obesity?
International journal of obesity (2005) · preclinical
PMID 38302593
2025Efficacy and safety of retatrutide for the treatment of obesity: a systematic review of clinical trials
Journal of basic and clinical physiology and pharmacology · preclinical
PMID 40728138
2024Efficacy and Safety of GLP-1 Medicines for Type 2 Diabetes and Obesity
Diabetes care · preclinical
PMID 38843460
2024Triple hormone receptor agonist retatrutide for metabolic dysfunction-associated steatotic liver disease: a randomized phase 2a trial
Nature medicine · human
PMID 38858523
2024The power of three: Retatrutide's role in modern obesity and diabetes therapy
European journal of pharmacology · preclinical
PMID 39515565
2024Incretin-Based Weight Loss Pharmacotherapy: Can Resistance Exercise Optimize Changes in Body Composition?
Diabetes care · preclinical
PMID 38687506
2024Effects of once-weekly subcutaneous retatrutide on weight and metabolic markers: A systematic review and meta-analysis of randomized controlled trials
Metabolism open · preclinical
PMID 39318607
2024Gut hormones and appetite regulation
Current opinion in endocrinology, diabetes, and obesity · preclinical
PMID 38511400
2024Retatrutide
Clinical diabetes : a publication of the American Diabetes Association · preclinical
PMID 39429457
2023Triple-Hormone-Receptor Agonist Retatrutide for Obesity - A Phase 2 Trial
The New England journal of medicine · human
PMID 37366315
2023Retatrutide, a GIP, GLP-1 and glucagon receptor agonist, for people with type 2 diabetes: a randomised, double-blind, placebo and active-controlled, parallel-group, phase 2 trial conducted in the USA
Lancet (London, England) · human
PMID 37385280

Questions (9)

What is Retatrutide?

Retatrutide (Retatrutide (GIP/GLP-1/glucagon triple agonist)). Triple receptor agonist (GIP, GLP-1, glucagon). Adds glucagon-receptor agonism to increase energy expenditure alongside appetite reduction and improved glycaemic control.

What is Retatrutide used for?

Commonly discussed uses: investigational: obesity, type 2 diabetes (clinical trials). There is both human and animal/preclinical research, though the depth and quality vary by indication. Note: most uses are not approved indications.

How does Retatrutide work?

Mechanism: Triple receptor agonist (GIP, GLP-1, glucagon). Adds glucagon-receptor agonism to increase energy expenditure alongside appetite reduction and improved glycaemic control.

Is Retatrutide safe?

Reported considerations: GI: nausea, vomiting, diarrhoea (dose-related in trials), long-term safety unknown. There is both human and animal/preclinical research, though the depth and quality vary by indication. INVESTIGATIONAL ONLY. Not approved anywhere. Grey-market sale as 'research peptide' is unverified material. This is not a safety endorsement; safety data for unapproved compounds is incomplete.

What is the typical dose of Retatrutide?

Commonly cited ranges (educational reference, not a recommendation): low trial titration (1-2mg), typical investigational, high up to 12mg/week in trials. Administration: subcutaneous. Half-life: ~6 days (reported).

Is Retatrutide legal in Australia?

Australian status: Investigational — not approved/registered. INVESTIGATIONAL ONLY. Not approved anywhere. Grey-market sale as 'research peptide' is unverified material. General regulatory context: most active peptides are Schedule 4 and require a prescription; import via the Personal Importation Scheme requires a valid Australian prescription for prescription-only goods.

How do you store Retatrutide?

Reconstitution/storage reference: research vials vary; storage: refrigerated.

What is Retatrutide commonly stacked with?

Commonly discussed combinations (anecdotal for unapproved compounds): investigational monotherapy in trials. Stacking increases interaction/safety uncertainty.