Safety
Beyond-use dates on compounded GLP-1
A beyond-use date (BUD) is the date after which a compounded preparation should not be used. It's set by USP standards based on the preparation and st
A beyond-use date (BUD) is the date after which a compounded preparation should not be used. It's set by USP standards based on the preparation and storage, and it's usually much shorter than a manufactured drug's expiration date. Using a compounded GLP-1 past its BUD risks reduced potency and, for injectables, contamination.
What you need to know
Manufactured drugs carry an expiration date backed by stability testing. Compounded preparations instead carry a beyond-use date, which reflects USP-based limits for that type of preparation and its storage conditions — and it is typically far shorter than a commercial expiration.
For a sterile injectable, the BUD isn't just about potency; it also bounds the window in which sterility can be reasonably assured. That's why 'it still looks fine' is not a safe reason to use a product past its BUD.
Practically, the BUD should be on the label. If it isn't, that's a red flag about the pharmacy. Plan your supply so you're not tempted to stretch a vial past its date to save money.
| Concept | Manufactured drug | Compounded preparation |
|---|---|---|
| Date type | Expiration date | Beyond-use date (BUD) |
| Basis | Stability testing | USP standards + storage |
| Typical length | Months to years | Days to weeks (often) |
| If exceeded | Reduced assurance | Potency and sterility risk |
- Find the beyond-use date on the label
- Store it exactly as directed (usually refrigerated)
- Do not use past the BUD, even if it looks fine
- If no BUD is listed, question the pharmacy
What the evidence shows
- This guidance reflects FDA compounding information, USP standards, and state board of pharmacy resources.
- Verification steps here are public and checkable.
What the evidence does not show
- That following these steps makes a compounded product FDA-approved — it does not.
- That this page replaces personalized medical or pharmacist advice.
Frequently asked questions
What's a beyond-use date?
The date after which a compounded preparation shouldn't be used; it's usually much shorter than a manufactured expiration.
Can I use it past the BUD if it looks fine?
No — potency and, for injectables, sterility can't be assured.
Related: pharmacy verification hub · safety hub · cost calculator. Compounded medications are not FDA approved.
Not medical advice. This page is consumer education, not medical advice, and does not recommend a dose, product, or provider. Compounded medications are not FDA approved. Talk with a licensed clinician about your situation.