Who to call about a faulty or expired injection pen, what to keep, and how the FDA reporting channels work. Not medical advice.
Key points
- 01Stop using it and label it. A pen that will not dial, will not deliver, or is past its date is set aside rather than persuaded. Put a piece of tape on it with the date and one line describing what happened, so it does not quietly return to the rotation next week.
- 02Keep everything, especially the lot number. The pen, the carton, the pharmacy label and the instructions for use are what a complaint is built from, and the lot number on the carton is the single most important item. A photo of the device, the counter window and the carton takes a minute and survives the carton being discarded.
- 03The dispensing pharmacy is the first call. Pharmacies handle most device problems, and whether a replacement is possible depends on the product, the payer and local rules, so the pharmacist is the one who can tell you. Calling rather than turning up means the pen is not travelling around before anyone has looked at the record.
- 04The manufacturer runs a product-complaint line. Every prescribing information and instructions-for-use leaflet lists a contact number for the manufacturer, and device complaints are what that line exists for. They will ask for the lot number, the expiry, and what the counter and window showed, which is why step two matters.
- 05Reporting to the regulator is separate from a replacement. In the United States, MedWatch takes reports about drug and device problems directly from patients and caregivers, and there is a parallel route for medical-device problems. A report is not a claim and does not replace the pharmacy call; it is how a pattern across many users becomes visible.
- 06A failed pen is a prescriber question, not a dosing decision. If a dose was missed or partly delivered because a device failed, what happens next comes from your prescriber and the labelling, not from arithmetic at the kitchen table. Our pages on a partial dose and on a missed dose cover the questions worth having ready for that call.
Frequently asked questions
Who do I contact about a defective injection pen?+
Start with the pharmacy that dispensed it, then the manufacturer's product-complaint line printed in the instructions for use. Keep the device, carton and lot number for both calls. Not medical advice.
Can I get a replacement pen?+
Sometimes, and the pharmacist is the person who can tell you. It depends on the product, your payer and local rules, which is why the pharmacy call comes before anything is thrown away.
What is MedWatch?+
The FDA programme that receives reports about problems with medicines and medical devices, including reports submitted directly by patients and caregivers. Reporting is separate from getting a replacement and does not require one to have happened.
How do I dispose of a pen that failed?+
As sharps, following the usual household sharps rules, unless the pharmacy or manufacturer asks you to return the device. If they want it back, follow their instructions rather than binning it.