GLP-1 weight-loss medications from MedExpress are delivered using specific packaging protocols based on the treatment type.
Overview
Use this guide to understand:
What to do if ice packs in your order have melted.
How long your medication remains safe after dispatch.
How to verify if your pen is still suitable for use.
Are melted ice packs a problem?
No. Melted ice packs are expected during delivery, particularly in warmer weather.
Our GLP-1 orders are packed in insulated packaging designed to keep the medication cool for up to 48 hours. The presence of melted ice packs does not mean the medication is unsafe or has lost its effectiveness.
Safety timelines based on delivery speed
If delivery arrives within 48 hours of dispatch
If your GLP-1 order arrives within 48 hours and is placed in a refrigerator immediately, the medication remains safe to use until the expiry date printed on the pen.
If delivery arrives after 48 hours
Safety depends on the specific medication and its temperature exposure:
Mounjaro®: Remains safe to use for up to 30 days from the dispatch date, provided the pen has been kept below 30°C.
Wegovy®: Remains safe to use for up to 6 weeks from the dispatch date, provided the pen has been kept at room temperature.
How to check your dispatch time
You can find the exact handover time by checking your courier tracking record (e.g., Royal Mail or DPD). This record shows exactly when the parcel was handed to the courier, which marks the start of the 48-hour transit window.
When a pen may NOT be safe to use
A GLP-1 pen may be unsuitable for use if it was delivered more than 48 hours after dispatch AND:
The pen was exposed to high heat (above 30°C).
The liquid inside the pen window appears cloudy, discoloured, or has been frozen.
Important: If you notice any of these visible changes, the medication requires a clinical review before use.
Key Takeaway
Melted ice packs are normal for GLP-1 orders. If your medication arrives within 48 hours and the liquid is clear, it is safe to use. If delivery takes longer, your pen is still typically safe for 30 days (Mounjaro®) or 6 weeks (Wegovy®) if kept at room temperature.