Posts tagged 503B
503A vs. 503B Compounding & FDA Regulations Guide

Following increased regulatory scrutiny and safety incidents linked to inconsistent oversight by state boards of pharmacy, the FDA established two designations for compounding facilities: 503A and 503B. This guide explains the defining features of each designation, the key differences between them, and what 503A compounding pharmacies and 503B outsourcing facilities need to know to remain compliant with evolving FDA and state regulations.

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What is a 503B? Outsourcing Facilities Explained

A 503B outsourcing facility is a type of drug manufacturing establishment authorized to compound medications in bulk, with or without patient-specific prescriptions, for distribution to healthcare facilities for office or “office-administered” use. These facilities are regulated by the U.S. Food and Drug Administration (FDA) and must comply with stringent quality and safety standards. Learn more about the definitions & regulations in this post. 

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