Intelligence / MK-677 (Ibutamoren)

MK-677 (Ibutamoren)

Prescription Only
Growth Hormone (Oral)
Schedule
S4
Prescription Only
Enforcement
Stable
Medium Risk
Providers
6
Access: Clear
Key Facts
Schedule 4 - Prescription Only
Non-peptide GH secretagogue (oral)
Universally discussed in peptide communities
Elevated cortisol and prolactin concerns
Available through some AU clinics

Overview

MK-677 (Ibutamoren) is technically a non-peptide growth hormone secretagogue but is universally discussed in peptide communities. Unique for its oral administration (rare for this class). Carries more side effect concerns than injectable GH peptides including elevated cortisol and prolactin. Available through some Australian clinics.

Australian Scheduling

Schedule 4 (Prescription Only). Enforcement is stable. Oral administration makes it distinct from injectable peptides.

Access Pathway

Available through 6 identified Australian providers. Oral administration means it does not require compounding for injection.

Regulatory Notice

For informational purposes only. TGA scheduling may change without notice. All Schedule 4 peptides require a valid prescription from a registered Australian medical practitioner. This site does not sell, supply, or facilitate access to therapeutic goods. Data compiled from TGA SUSMP, public provider directories, and publicly available review platforms.

News & Updates13 items
Striosomal ghrelin receptor activity controls reward-cost integration
Res Sq25 June 2026
Unapproved ibutamoren product warning: TGA finds undeclared metandienone in 'Pharmatech' MK-677 capsules
Australian Journal of Pharmacy4 June 2026
Unapproved ibutamoren capsules (MK-677) found to contain undisclosed anabolic steroid
TGA3 June 2026
What are peptides, are they safe and is there evidence to back up the hype?
The Guardian4 Apr 2026
Injectable peptides are the new anti-ageing trend - but what evidence do we have?
UNSW1 Apr 2026
Spontaneous Splenic Rupture in a Patient With Recent Use of Performance-Enhancing Compounds: A Case Report and Literature Review.
Cureus30 Mar 2026
Acute stress suppresses hunger-driven food seeking through PVN activation: Reversal by anxiolytic drug and ghrelin receptor agonist, with anxiolytic-like effects of refeeding
Neuroscience research1 Jan 2026
Knowing the minimal detectable dose can facilitate the interpretation of a hair test result: II. Case example with ibutamoren (MK-677), a growth hormone secretagogue
Clin Chim Acta1 Jan 2026
Phase 3 Study of LUM-201 in Children With Growth Hormone Deficiency trial posted on ClinicalTrials.gov
ClinicalTrials.gov29 Apr 2025
MAHA peptides wave erodes Australian healthcare
Medical Republic1 Jan 2025
The Impact of Ibutamoren on Nonalcoholic Fatty Liver Disease trial posted on ClinicalTrials.gov
ClinicalTrials.gov6 May 2022
Effect of oral MK-677 on GH secretion and body composition in healthy older adults
PubMed1 Nov 2008
Two-year effects of MK-677 on body composition and bone mineral density
PubMed1 July 2001

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