Does zoledronic acid expire?
The printed date covers the sealed pack. Once zoledronic acid is opened, mixed or diluted, its label sets a second and usually much shorter limit — quoted below, per product.
Shortest limit on any zoledronic acid label: 24 hours
“L ready-to-infuse solution in a flexible plastic container (bag) 5 bags per carton Handling After entering the IV administration port, the solution is stable for 24 hours at 2° to 8°C (36° to 46°F).”
That applies to the product it is printed on, not to every form of zoledronic acid — check which one you have against the list below.
What the labels say
“L ready-to-infuse solution in a flexible plastic container (bag) 5 bags per carton Handling After entering the IV administration port, the solution is stable for 24 hours at 2° to 8°C (36° to 46°F).”
On the label for zoledronic acid · DailyMed
“After opening, the solution is stable for 24 hours at 2°C to 8°C (36°F to 46°F) [see How Supplied/Storage and Handling ( 16 )].”
On the label for zoledronic acid · DailyMed
“Product Code Unit of Sale Strength 966100 NDC 63323-966-00 Individually packaged 5 mg/100 mL in a clear glass Single Dose Vial Handling After opening the solution, it is stable for 24 hours at 2 to 8°C (36 to 46°F).”
On the label for Zoledronic Acid · DailyMed
“After opening, the solution is stable for 24 hours at 2°C to 8°C (36°F to 46°F) [ see How Supplied/Storage and Handling (16) ].”
On the label for Zoledronic Acid · DailyMed
“UPPLIED/STORAGE AND HANDLING Zoledronic Acid Injection is supplied as follows: Each vial contains 5 mg/100 mL NDC 67457-619-10 Handling After opening the solution, it is stable for 24 hours at 2° to 8°C (36° to 46°F).”
On the label for Zoledronic Acid · DailyMed
“After opening, the solution is stable for 24 hours at 2° to 8°C (36° to 46°F) [see How Supplied/Storage and Handling (16) ] .”
On the label for Zoledronic Acid · DailyMed
“HOW SUPPLIED/STORAGE AND HANDLING Each bottle contains 5 mg per 100 mL NDC 66758-155-46 Handling After opening the solution, it is stable for 24 hours at 2°C to 8°C (36°F to 46°F).”
On the label for Reclast · DailyMed
“Factor 68001-611-33 5 mg per 100 mL ready-to-infuse solution in a single-dose bag 1 bag per carton Handling After entering the IV administration port, the solution is stable for 24 hours at 2° to 8°C (36° to 46°F).”
On the label for Zoledronic acid · DailyMed
“After opening, the solution is stable for 24 hours at 2° to 8°C (36° to 46°F) [ see How Supplied/Storage and Handling (16 )].”
On the label for Zoledronic acid · DailyMed
“L is supplied as follows: NDC Container Package Factor 68083-135-01 100 mL clear glass vial 1 vial per carton Handling After opening the solution, it is stable for 24 hours at 2° to 8°C (36° to 46°F).”
On the label for Zoledronic Acid · DailyMed
“After opening, the solution is stable for 24 hours at 2° to 8°C (36° to 46°F) [see How Supplied/Storage and Handling (16) ].”
On the label for Zoledronic Acid · DailyMed
“L) Package Factor 71288- 806 -51 5 mg per 100 mL Single-Dose Bottle 1 bottle per carton Handling After opening the solution, it is stable for 24 hours at 2° to 8°C (36° to 46°F).”
On the label for Zoledronic Acid · DailyMed
How the label says to keep zoledronic acid
Storage is the other half of the question: the stability behind any date assumes these conditions, and a medicine kept outside them ages faster than the calendar says.
- “Store at 25°C (77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].”
- “Do not store undiluted zoledronic acid injection (4 mg/5 mL) in a syringe, to avoid inadvertent injection.”
- “The total time between dilution, storage in the refrigerator, and end of administration must not exceed 24 hours.”
- “Conditions Store at 20° to 25°C (68° to 77°F); excursions permitted between 15° and 30°C (59° and 86°F).”
- “Store at 25°C (77°F); excursions permitted to 15 to 30°C (59 to 86°F) [see USP Controlled Room Temperature].”
Frequently asked questions
Does zoledronic acid expire?
Two different clocks apply and only one of them is the printed date. The date on a sealed pack is the manufacturer's guarantee for the unopened product. Once it is opened, mixed or diluted, the label imposes its own limit — as tight as 24 hours on some zoledronic acid products, and that is the number quoted on this page.
Can I still use zoledronic acid after the date on the box?
This page cannot tell you that, and nor can any page. The FDA's own shelf-life programme found 88% of tested lots stayed within specification at least a year past expiry — and concluded in the same breath that lot-to-lot variation means this can only be confirmed by testing each lot. What you can check at home is the in-use limit above and whether the product has been stored as the label requires. Ask a pharmacist about a specific pack; they will also dispose of what you no longer need.
Why do different zoledronic acid products have different limits?
Because they are different formulations. A suspension that gets mixed with water, a pen that gets carried at room temperature, and a sealed tablet do not behave alike, so each manufacturer's label sets its own limit and each is shown here with the product it belongs to. We never merge them into one number for the molecule.
More on zoledronic acid
Quoted from FDA labels for reference, not medical advice, and not a suggestion to use anything past its limit. If you are unsure whether a pack is still good, a pharmacist can tell you and can dispose of it safely.