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FDACompounding list

FDA proposes to exclude semaglutide, tirzepatide and liraglutide from the 503B bulks list

The FDA proposed leaving semaglutide, tirzepatide and liraglutide off the 503B bulk drug substances list, finding no clinical need for outsourcing facilities to compound them from bulk now that the GLP-1 shortages are resolved. If finalized, the exclusion would close the last routine legal pathway for large-scale compounded GLP-1s and further narrow the supply of non-branded semaglutide and tirzepatide. The FDA took comments on the proposal through mid-2026 and is reviewing them; a final determination had not been published as of this writing.

Source

https://www.fda.gov/news-events/press-announcements/fda-proposes-exclude-semaglutide-tirzepatide-and-liraglutide-503b-bulks-list

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Compounds affected

Ranked vendors for Semaglutide

Every vendor and price for Semaglutide →
  1. 1NLNorthline Labs$4.50/mg listed · 1 Semaglutide certificate90.2of 100Extensively documentedVisit Northline Labs
  2. 2Amino Club$5.00/mg listed · 0 Semaglutide certificates90.1of 100Extensively documentedVisit Amino Club
  3. 3Ascend Science1 Semaglutide certificate88.9of 100Extensively documentedVisit Ascend Science

Ranked on this compound's price per mg against the market median, with testing and documentation counted as they are overall. A regulatory action against a vendor is recorded on that vendor's profile and counts against its score.

Ranked vendors for Tirzepatide

Every vendor and price for Tirzepatide →
  1. 1Origin Labs1 Tirzepatide certificate96.9of 100Extensively documentedVisit Origin Labs
  2. 2Next Gen Peptides$2.00/mg listed · 12 Tirzepatide certificates93.6of 100Extensively documentedVisit Next Gen Peptides
  3. 3Ascend Science$4.55/mg listed · 6 Tirzepatide certificates92.9of 100Extensively documentedVisit Ascend Science

Ranked on this compound's price per mg against the market median, with testing and documentation counted as they are overall. A regulatory action against a vendor is recorded on that vendor's profile and counts against its score.