What is the FDA 503A Bulks List?

The Section 503A Bulk Drug Substances List is a federal list of bulk ingredients that may be eligible for patient-specific compounding when statutory conditions are met. Inclusion on the list is not FDA approval of a finished medication.

What the list does

Section 503A of the Federal Food, Drug, and Cosmetic Act governs traditional compounding — a licensed pharmacy preparing a medication for an individual patient with a valid prescription. The Bulks List identifies bulk drug substances that may be used as ingredients in that setting when other statutory conditions are satisfied.

The FDA evaluates candidate substances for physical and chemical characterization, safety, effectiveness, and historical use in compounding. The Pharmacy Compounding Advisory Committee provides nonbinding recommendations as part of that process.

What the list does not do

Placement on the list is not a finding that a finished medication has been proven safe and effective for any particular condition. It does not establish an approved dose or treatment schedule, does not guarantee insurance coverage, and does not make a compounded product equivalent to an FDA-approved drug.

Medically reviewed by Dr. Michael Mimlitz, MD (NPI 1508891870), Chief Physician of GOAL.MD. Physician-supervised telehealth. More at goal.md/answers.