Home | Blog | General health | Weight Loss | Wegovy | Why do Wegovy pens no longer arrive chilled?
The MHRA (Medicines & Healthcare products Regulatory Agency) allows Wegovy FlexTouch pens to remain unrefrigerated at temperatures below 30°C for up to 48 hours during transport. This won’t affect the medicine, and it will remain effective. After 48 hours, the pen should be placed in the fridge. Wegovy is the first weight loss injection that doesn’t require cold-chain transport.

Wegovy pens should never be frozen. Freezing the pens alters the medicine’s chemical structure, making it inactive. If you accidentally freeze the pen, make sure to dispose of it safely. Don’t inject it, as this could potentially be harmful.
Wegovy pens should be stored in conditions below 30°C, as high temperatures can damage the medicine. High heat can alter the protein structure of the medicine, making it ineffective.
When storing at room temperature after opening, keep it in a cool, dark place and avoid direct light, as this can also damage the medicine. If your pen is stored above 30°C for a prolonged time, you should discard it.
During periods of hot weather, a pharmacy may choose to send Wegovy via cold-chain delivery to prevent the injection being stored at temperatures above 30°C.
Final thoughts: A note from our expert
Sanjeda Chowdhury, Superintendent Pharmacist at Treated:
‘When it was first manufactured and approved, semaglutide (the active ingredient in Wegovy) was transported and stored at cool temperatures. Now there’s a lot of supporting evidence showing that it remains effective when transported and stored without being refrigerated. This makes it much more convenient for online pharmacies and users.’
Wegovy®▼ (semaglutide injection) FlexTouch® pen.
Wegovy 0.25 mg, FlexTouch solution for injection in pre-filled pen - summary of product characteristics (SmPC) - (EMC).
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Last updated on Aug 19, 2026.
Our experts continually monitor new findings in health and medicine, and we update our articles when new info becomes available.
Aug 19, 2026
Published by: The Treated Content Team. Medically reviewed by: Ms Sanjeda Chowdhury, Superintendent Pharmacist + Independent PrescriberHow we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Superintendent Pharmacist + Independent Prescriber
Sanjeda runs our pharmacy, based in Bolton. She works closely with our doctors and prescribers, ensuring that the treatments we recommend are safe, and that all medicines are dispensed correctly. Sanjeda is also an Independent Prescriber. Registered with GPhC (No. 2202465)
MeetHow we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.