Quick answer
If your Mounjaro pen arrives warm, do not inject it until the dispensing pharmacy or prescriber has advised you. Keep the pen, insulated packaging, ice packs and delivery label, take photos, note the delivery time, and ask the pharmacy to confirm in writing whether the medicine is still safe to use or needs replacing.
What to check first
- Was the parcel delayed or left outside?
- Was the insulated packaging damaged?
- Were the ice packs completely melted and warm?
- Does the pen look cloudy, cracked or discoloured?
- Does the pharmacy publish a warm-parcel replacement policy?
How to avoid it next time
Choose a pharmacy with tracked cold-chain delivery, clear dispatch cut-offs and a written delayed-parcel policy. Avoid ordering close to weekends or bank holidays if the pharmacy does not guarantee suitable refrigerated delivery. Compare price first on WeightCompare, then confirm delivery handling before checkout.