How long can semaglutide injection (Ozempic or Wegovy) be stored at room temperature after the first dose?

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Last updated: September 25, 2026 • View editorial policy

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Semaglutide Storage at Room Temperature

Semaglutide injection can be kept at room temperature (8°C to 30°C or 46°F to 86°F) for up to 28 days prior to cap removal. 1

Storage Guidelines

The FDA-approved labeling for Wegovy (semaglutide) provides explicit storage instructions:

  • Primary storage: Refrigerate at 2°C to 8°C (36°F to 46°F)
  • Room temperature allowance: If needed, the pen can be kept at 8°C to 30°C (46°F to 86°F) for up to 28 days before the cap is removed 1
  • Do not freeze
  • Protect from light - keep in original carton until administration
  • Discard after use 1

Critical Caveats

The 28-day room temperature window applies only before the cap is removed. This is a single-dose pen that must be discarded after one use, so the practical implication is that you have flexibility in storage conditions during the 28 days leading up to administration.

Common pitfall: Do not confuse this with multi-dose vials that may have different in-use stability requirements. Wegovy/Ozempic pens are single-dose devices designed for one-time use 1.

Practical Application

For patients traveling or unable to maintain consistent refrigeration:

  • The medication tolerates room temperature exposure for nearly a month
  • Always return to refrigeration when possible for optimal stability
  • Never expose to freezing temperatures
  • Maintain light protection by keeping in the original carton 1

This storage flexibility makes semaglutide practical for real-world use, including travel scenarios, without compromising drug stability or efficacy.

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.