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503a Pharmacy

Meaning

A 503a pharmacy is a traditional compounding pharmacy that prepares personalized medication prescriptions for individual patients based on a specific patient-provider relationship. These facilities operate under state boards of pharmacy regulations and must comply with the United States Pharmacopeia (USP) standards for drug preparation. They specialize in creating custom-strength or custom-formulation hormone preparations, which are not commercially available, to meet the unique physiological needs documented by a licensed prescriber.