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mk-677 · connecticut

Is MK-677 legal in Connecticut?

status · caveats apply
Non-peptide ghrelin mimetic; Merck discontinued development for safety (CHF, hyperglycemia); PCAC voted NO Oct 29, 2024; WADA S2.2 explicitly named. No state-level peptide restrictions beyond federal law in Connecticut.

category: no approval · last verified May 13, 2026

§ 01

Quick answer

Non-peptide ghrelin mimetic; Merck discontinued development for safety (CHF, hyperglycemia); PCAC voted NO Oct 29, 2024; WADA S2.2 explicitly named. No state-level peptide restrictions beyond federal law in Connecticut.
§ 02

Full status breakdown

Federal status

FDA approval
no approval
DEA scheduling
not scheduled
503A compounding
Bulks list: voted no
Do-not-compound list: on list
Category 2 historically; do-not-compound posture confirmed by PCAC vote. FDA noted fluid retention, CHF risk, and hyperglycemia/diabetes signals from Merck phase 3 data.
PCAC review history
FDA Warning Letters
none on record for this compound
Shortage status
not currently on shortage list
Sale framing
Research-use-only posture: Not a legal dietary supplement (DSHEA exclusion: investigational new drug). Selling as supplement is FDCA §403 misbranding; PCAC-rejected.
Personal possession: Not federally criminalized.

Connecticut — state-specific

Sport-body status

WADA 2026
on prohibited list · class S2.2 · both
Explicitly named as 'ibutamoren (MK-677)' under S2.2 (GH secretagogues/mimetics).
USADA
NCAA

What we couldn’t verify

§ 03

Also known as

MK-677 is also marketed or referenced under the following names (vendor pseudonyms, brand names, chemical identifiers):

  • Ibutamoren
  • Ibutamoren Mesylate
  • MK-0677
  • L-163,191
  • Nutrobal
  • ghrelin mimetic
§ 04

Disclaimer

§ 05

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