Can Semaglutide Be Refrigerated?

Short answer: Yes — refrigeration is required. Semaglutide must be stored between 36°F and 46°F (2°C–8°C). Freezing destroys it. Room temperature is acceptable for short periods only.

Refrigeration Requirements for Semaglutide

Whether you are using brand-name Ozempic, Wegovy, or compounded semaglutide from a 503B pharmacy, refrigeration is the standard storage requirement. The peptide structure of semaglutide degrades when exposed to heat or light over time.

Storage ConditionTemperatureDuration
Refrigerator (ideal)36°F – 46°F (2°C – 8°C)Until expiration date
Room temperatureUp to 77°F (25°C)Up to 56 days (opened pen) / check compounded vial label
FreezerBelow 32°F (0°C)Never — destroys medication
⚠ Never freeze semaglutide. Freezing causes irreversible degradation. A vial or pen that has been frozen should not be used even if it looks normal.

Where in the Refrigerator Should You Store It?

Placement inside the refrigerator matters more than most people realize:

  • Middle shelf: Best location — consistent temperature, away from the cooling element
  • Door shelves: Avoid — temperature fluctuates every time the door opens
  • Back of fridge: Avoid — can get too cold near the cooling coil and risk partial freezing
  • Crisper drawer: Acceptable if temperature is stable
💡 Store your vial in a small dedicated case or pouch on the middle shelf so it does not roll around or get buried behind other items.

Compounded Semaglutide Storage Notes

Compounded semaglutide vials from 503B pharmacies often contain bacteriostatic water as the diluent. Once reconstituted, storage rules apply immediately. Always follow the specific guidance printed on your pharmacy label, as beyond-use dates vary by formulation.

  • Most compounded vials: refrigerate, use within 28–56 days of reconstitution
  • Keep the rubber stopper clean — wipe with alcohol before each draw
  • Do not shake the vial — swirl gently if needed

What Happens If Semaglutide Gets Warm?

Short excursions above 77°F are concerning but not automatically catastrophic. See our full guide on what happens if semaglutide gets warm for a decision framework on whether to use or discard a warm vial.

Traveling With Semaglutide

Travel introduces the most common storage challenges. See our traveling with semaglutide guide for TSA rules, insulated carry options, and how to handle hotel stays without a mini-fridge.

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