Regulatory
FDA Has Proposed Keeping Semaglutide and Tirzepatide Off the 503B Bulks List
The FDA proposed keeping semaglutide and tirzepatide off the 503B Bulks List. What that means for compounded GLP-1s, and what happens next.
· Updated daily
Independent — we sell nothingSubscribe
Regulatory · Analysis
The FDA proposed keeping semaglutide and tirzepatide off the 503B Bulks List. What that means for compounded GLP-1s, and what happens next.
By peptidesmedia Editorial Desk ·
Safety
No published article yet. The beat starts when a named author is assigned.
GLP-1
No published article yet. The beat starts when a named author is assigned.
Legality
No published article yet. The beat starts when a named author is assigned.
The beat
Dated, re-reviewed coverage of peptide regulation, safety and evidence.
Regulatory
The FDA proposed keeping semaglutide and tirzepatide off the 503B Bulks List. What that means for compounded GLP-1s, and what happens next.
Reference
Each entry covers what it is, the evidence grade, safety, and current legal status — dated and medically reviewed.
Synthetic peptide
GLP-1 agonist
GIP/GLP-1 agonist
Thymosin β4 fragment
Hydrolysed collagen
Start here
New to peptides, or just want the current state of play? Start with one of these.
A maintained, dated tracker of the FDA status of every peptide we cover — and what each status actually permits.
Open the tracker →What the published evidence supports, what it does not, and how to tell the difference between an anecdote and a trial.
Read on →The approved GLP-1 medicines, how they differ, what they cost, and where compounded versions fit.
Read on →The brief
What changed in peptide regulation, safety and evidence this week. Independent and seller-free.
We sell nothing. Unsubscribe anytime.