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NoticeOpen for Comment2026-085522026-05-01

List of Bulk Drug Substances for Which There Is a Clinical Need Under Section 503B of the Federal Food, Drug, and Cosmetic Act

Health and Human Services Department, Food and Drug Administration

Abstract

The Food and Drug Administration (FDA, the Agency, or we) is evaluating substances that have been nominated for inclusion on a list of bulk drug substances (active pharmaceutical ingredients) for which there is a clinical need for outsourcing facilities to use in compounding (the 503B Bulks List). This notice identifies three bulk drug substances that FDA has considered and proposes not to include on the 503B Bulks List: semaglutide, tirzepatide, and liraglutide. Additional bulk drug substances nominated for inclusion on this list are under consideration and may be the subject of future notices.

Action & Dates

Action
Notice.
Dates
Either electronic or written comments on the notice must be submitted by June 30, 2026.

Public Comment

Comments Close
2026-06-30 — Open for comment

Document Excerpt

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Health and Human Services Food and Drug Administration [Docket No. FDA-2018-N-3240] AGENCY: Food and Drug Administration, HHS. ACTION: Notice. SUMMARY: The Food and Drug Administration (FDA, the Agency, or we) is evaluating substances that have been nominated for inclusion on a list of bulk drug substances (active pharmaceutical ingredients) for which there is a clinical need for outsourcing facilities to use in compounding (the 503B Bulks List). This notice identifies three bulk drug substances that FDA has considered and proposes not to include on the 503B Bulks List: semaglutide, tirzepatide, and liraglutide. Additional bulk drug substances nominated for inclusion on this list are under consideration and may be the subject of future notices. DATES: Either electronic or written comments on the notice must be submitted by June 30, 2026. ADDRESSES: You may submit comments as follows. Please note that late, untimely filed comments will not be considered. Electronic comments must be submitted on or before June 30, 2026. The https://www.regulations.gov electronic filing system will accept comments until 11:59 p.m. Eastern Time at the end of June 30, 2026. Comments received by mail/hand delivery/courier (for written/paper submissions) will be ( printed page 23432) considered timely if they are postmarked or the delivery service acceptance receipt is on or before that date. Electronic Submissions Submit electronic comments in the following way: Federal eRulemaking Po

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Full Document

Citation: 91 FR 23431