How long will a 1mg pen of Ozempic (semaglutide) last for a patient using 1mg weekly?

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Ozempic 1mg Pen Duration

A single 1mg Ozempic pen will last approximately 4 weeks (one month) when using 1mg weekly. 1

Understanding Ozempic Pen Contents and Dosing

The standard Ozempic pen formulations contain multiple doses, but the specific pen you're using matters:

  • If you have a pen labeled for 1mg dosing, it typically contains 4 doses of 1mg each, providing a 4-week (1-month) supply when injecting 1mg once weekly 1, 2

  • Ozempic has a half-life of approximately 7 days, which is why it's dosed once weekly and reaches steady state in 4-5 weeks 2

Practical Administration Details

  • You can administer your weekly dose at any time of day, with or without meals 1

  • If you miss a dose and it has been less than 5 days since the missed dose, administer as soon as possible; if more than 5 days have passed, skip the missed dose and resume your regular weekly schedule 1

Important Dosing Context

  • The 1mg dose you're using is a common maintenance dose for type 2 diabetes management, though the maximum approved dose for diabetes is 2mg weekly 1

  • For weight management specifically, the FDA-approved dose is 2.4mg weekly (marketed as Wegovy), which requires a different titration schedule starting at 0.25mg weekly 1, 3

Common Pitfall to Avoid

Do not attempt to extract additional doses from the pen beyond what it's designed to deliver - the pen mechanism is calibrated for specific doses, and attempting to modify this could result in inaccurate dosing 1

References

Guideline

Semaglutide Dosing and Administration

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Professional Medical Disclaimer

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.

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