Articles tagged “503B”

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503A vs 503B: What's the Difference Between Compounding Pharmacies?

The terms 503A and 503B come up constantly in peptide therapy discussions, but most patients have no idea what they mean. Here's a clear breakdown of the two types of compounding pharmacies, how they're regulated, and why it matters for your peptide prescription.

April 29, 20265 min readguide

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