FDA bulk drug substances nominated for compounding — 503A and 503B lists

Placeholder seed entry recording the source, not an event. The FDA maintains categorised lists of bulk drug substances nominated for use in compounding, including substances it has evaluated and placed in the category that may not be compounded. Several peptides tracked in this index have appeared in these evaluations. PepIndex records movements between categories here as they are observed; the linked page is the authoritative listing.