We Read FDA's Register of Compounding Facilities. 40 of 98 Have Never Been Inspected.

If a compounded GLP-1 arrives at your door, some pharmacy made it, and you are entitled to know which one and whether anyone has ever walked through the building. For one half of the compounding market there is a federal answer, published and free. We pulled the whole register and went through it.

What the register is

FDA maintains a list of every facility registered under section 503B of the Food, Drug, and Cosmetic Act — outsourcing facilities, the larger compounders that make medication in batches. For each one it publishes the name, the city and state, the date it first registered, the date it most recently re-registered, and the date it was last inspected.^[1] On our pull it held 98 facilities.

Forty of the ninety-eight have never been inspected

FDA does not bury this. The inspection column says, in plain words, “Not yet inspected”, and it says it for 40 of the 98 — 41% of the register. That is the number most people would publish, and on its own it is misleading.

The distribution says something different

We checked how long each uninspected facility had been registered. Almost all of them are recent. Of the 40 that have never been inspected, only three have been on the register for three years or more, and none for five. The rest registered within the last two years.

Read the other way round, the register looks like an agency keeping up rather than one that has lost track. Of the 58 facilities that have been inspected, 55 were last inspected in 2025 or 2026. Only two have gone more than two years since an inspector was there.

Where they are

The register concentrates in a handful of states: Texas (17), Florida (15), New Jersey (10) and California (9) hold just over half of it between them. That matters mainly because a facility’s state is the thing you can look up next.

How to use this as a buyer

1. Ask which pharmacy fills the prescription, by name. Most sellers we track do not publish this. An unnamed pharmacy is a finding in itself.
2. Look for that name on the federal register. If it is there, you can see when it registered and when it was last inspected.
3. If it is not there, ask which state board licenses it. That is the right follow-up, not an accusation — 503A pharmacies belong to state boards.
4. Treat “not yet inspected” as context, not a verdict. On this register it usually means recently registered.