503A compounding pharmacy
What 503A actually means.
RonanRx is a state-licensed 503A compounding pharmacy. That has a specific meaning under federal law. Plain English on this page.
What 503A is
A state-licensed pharmacy that prepares medication on prescription, for one patient at a time.
Section 503A of the Federal Food, Drug, and Cosmetic Act covers traditional compounding pharmacies. They are licensed by states, regulated by state boards of pharmacy, and prepare medications on the basis of a valid patient-specific prescription.
RonanRx is a state-licensed 503A compounding pharmacy. That means we prepare patient-specific prescriptions on a doctor's order, after pharmacist review.
Patient-specific prescriptions
By name, by evaluation, by prescription.
Compounded medication from a 503A pharmacy is dispensed only on a valid prescription written for an identified individual patient. Not bulk supply. Not office stock. Not catalog ordering.
Every patient-specific prescription is reviewed by a pharmacist before compounding. The pharmacist has independent release authority.
503A vs 503B
Two different categories. Different rules.
503A: traditional compounding pharmacies. State-licensed. Patient-specific prescriptions. Prepared one patient at a time. RonanRx operates here.
503B: outsourcing facilities. FDA-registered. May prepare bulk medication for office use. Different oversight, different scope. Some 503B facilities pursue cGMP standards.
Both have a place. They serve different needs. RonanRx is 503A — prescription-driven, not bulk supply.
Compounded drugs are not FDA-approved. They are prepared for identified patients based on lawful prescribing and patient-specific need. They are not generic equivalents of approved drugs and should not be evaluated using branded-drug trial data. Availability varies by state and prescribed medication.
More context
Plain-language explainers.
Why it matters for your patients, and what it changes for you as the prescribing doctor.