503A pharmacy
Where a compounded drug parts company with an FDA-approved one, where 503A parts company with 503B, and which accreditation programs tell them apart.
What is 503A pharmacy?
A state-licensed compounding pharmacy making preparations for named individual patients against a prescription.
Held to USP <797> for sterile work, but its finished products are not FDA pre-approved. ⚠ If a seller will not name the 503A filling your vial, you cannot check its inspection history — and that is the single most common gap in this register.
PCAB accreditation investigation →
GLP Watchdog writes these definitions from FDA labels and peer-reviewed PubMed literature.
Where 503A pharmacy comes up on this site
On GLP Watchdog, 503A pharmacy comes up in 2 research articles and 12 seller reviews.
Research that discusses it
Seller reviews that mention it
Connected terms
Other terms under Pharmacy and drug forms
Where the evidence lives
- PCAB accreditation investigation
- The full GLP-1 glossary (149 terms, 8 categories)
- Research articles — written from primary sources
- Tools and calculators
- Compare GLP-1 telehealth providers