Description
The Food and Drug Administration (FDA or the Agency) is announcing the availability of a final guidance for industry entitled “Evaluation of Bulk Drug Substances Nominated for Use in Compounding Under Section 503B of the Federal Food, Drug, and Cosmetic Act.” This guidance describes policies that FDA intends to use in evaluating bulk drug substances nominated for use in compounding under section 503B of the Federal Food, Drug, and Cosmetic Act (FD&C Act) for inclusion on the list of bulk drug substances that can be used in compounding under section 503B.
Scope & Applicability
Product Classes
2development program for drug and biological products
reference product for clinical need evaluation; Evaluation of whether a nominated substance is a component of an approved drug
Stakeholders
2Facilities registered under section 503B that compound human drug products; entities that compound drugs under section 503B; Entities that compound drug products under section 503B
Facilities registered under section 503B; Entities reporting adverse events under Section 503B.
Regulatory Context
Attributes
5Standard for including a substance on the 503B bulks list
Factor used to evaluate clinical need for a bulk drug substance
factor in physical and chemical characterization
Key tests for vaccine purity should be validated
The physical form of the drug product.
Identified Hazards
Hazards
2Risks associated with handling products subject to REMS with ETASU.
Safety concerns raised by the use of the substance in compounding
Related CFR Sections (3)
- 21CFR207.1§ 207.1 What definitions and interpretations of terms apply to this part?
The definitions and interpretations of terms in sections 201 and 510 of the Federal Food, Drug, and Cosmetic Act apply to the terms used in this part, if not otherwise defined in this section. The following definitions apply to this part:Read full regulation →
- 21CFR207.3§ 207.3 Bulk drug substance.
Bulk drug substance, as referenced in sections 503A(b)(1)(A) and 503B(a)(2) of the Federal Food, Drug, and Cosmetic Act, previously defined in § 207.3(a)(4) , means the same as “active pharmaceutical ingredient” as defined in § 207.1 .Read full regulation →
- 21CFR10.30§ 10.30 Citizen petition.
(a) This section applies to any petition submitted by a person (including a person who is not a citizen of the United States) except to the extent that other sections of this chapter apply different requirements to a particular matter.Read full regulation →
Related Warning Letters (10)
- 2025-12-23
CGMP/Finished Pharmaceuticals/Adulterated
SV Labs Corporation
- 2025-12-23
CGMP/Finished Pharmaceuticals/Adulterated
Guangdong Renhe Guozhuang Biotechnology Co., Ltd.
- 2025-12-23
CGMP/Finished Pharmaceuticals/Adulterated
Medinatura New Mexico, Inc.
- 2025-12-16
CGMP/Finished Pharmaceuticals/Adulterated
Sklar Personal Care Inc.
- 2025-12-16
CGMP/Deviations/Biologics License Application (BLA)
Microvascular Tissue, Inc.
- 2025-12-11
CGMP/Finished Pharmaceuticals/Adulterated
Catalent Indiana, LLC
- 2025-12-09
CGMP/Finished Pharmaceuticals/Adulterated
DeVere Manufacturing Inc.
- 2025-12-09
CGMP/Finished Pharmaceuticals/Adulterated
CDL Services, Inc. DBA Technichem
- 2025-12-09
CGMP/Finished Pharmaceuticals/Adulterated
Seaway Pharma Inc.
- 2025-12-02
Compounding Pharmacy/Adulterated Drug Products
PQ Pharmacy, LLC
See Also (8)
- Submission of Quality Metrics Data Guidance for Industry (Status: Draft)
- Compounded Drug Products That Are Essentially Copies of Approved Drug Products Under Section 503B of the Federal Food, Drug, and Cosmetic Act Guidance for Industry (Status: Final)
- Compounded Drug Products That Are Essentially Copies of a Commercially Available Drug Product Under Section 503A of the Federal Food, Drug, and Cosmetic Act Guidance for Industry (Status: Final)
- Drug Master Files Guidance for Industry (Status: Draft)
- Chemistry, Manufacturing, and Controls Changes to an Approved Application: Certain Biological Products: Guidance for Industry (Status: Final)
- Risk Management Plans to Mitigate the Potential for Drug Shortages (Status: Draft)
- CVM GFI #256 - Compounding Animal Drugs from Bulk Drug Substances (Status: Final)
- CVM GFI #253 Current Good Manufacturing Practice for Animal Cells, Tissues, and Cell- and Tissue-Based Products (Status: Final)