Short answer

Discard-by date = start date + N days, where N comes only from the FDA label for your presentation. Example: the label limits a Wegovy single-dose pen to 28 days unrefrigerated, so a clock starting Oct 19, 2026 ends Nov 16, 2026. Label facts as of Oct 19, 2026; check your carton insert.

Start counting at the first day kept out of the refrigerator.

Set by the FDA label for this product. Choose "Other" to enter your own.

Discard by
Nov 16, 2026
Days left from today
28 (from Oct 19, 2026)

Label: If needed, may be kept between 8 °C and 30 °C (46 °F to 86 °F) for up to 28 days.

Novo Nordisk, label revised Jun 18, 2026

Math, parameters and sources: model card.

Label in-use periods

Semaglutide: in-use and unrefrigerated periods quoted from the FDA labels
ProductDaysLabel wording (paraphrased)
Wegovy single-dose pen28If needed, may be kept between 8 °C and 30 °C (46 °F to 86 °F) for up to 28 days. (Novo Nordisk, Jun 18, 2026)
Wegovy FlexTouch pen (in use)56After first use, may be stored at room temperature or refrigerated for 56 days. (Novo Nordisk, Jun 18, 2026)
Ozempic pen (in use)56After first use, may be stored at room temperature 15–30 °C (59–86 °F) or refrigerated for 56 days. (Novo Nordisk, Jun 1, 2026)

All labels also say not to freeze the product and to protect it from light and heat. When in doubt, the carton insert for your exact presentation is the authority.

Frequently asked questions

How long can a Wegovy single-dose pen stay out of the fridge?

If needed, may be kept between 8 °C and 30 °C (46 °F to 86 °F) for up to 28 days. Clock starts at the first day kept out of the refrigerator. Source: FDA prescribing information on DailyMed.

How long can a Wegovy FlexTouch pen stay out of the fridge?

After first use, may be stored at room temperature or refrigerated for 56 days. Clock starts at the first use. Source: FDA prescribing information on DailyMed.

How is the discard-by date calculated?

Start date plus N calendar days. For example, Oct 19, 2026 plus 28 days is Nov 16, 2026. The tool also shows days left from today.

Can a product be put back in the refrigerator?

Follow the carton and the Instructions for Use for your presentation. Where the label allows a total number of unrefrigerated days, days out of the refrigerator count toward that total even if the product goes back in.

Is semaglutide FDA approved?

Yes. FDA approved as Ozempic (type 2 diabetes) and Wegovy (weight management, cardiovascular risk reduction). Numbers on this page quote the FDA prescribing information; your prescriber sets your dose.

Sources

  1. WEGOVY (semaglutide) injection, for subcutaneous use; WEGOVY (semaglutide) tablets, for oral use - Full Prescribing Information (SPL, Revised 6/2026). Novo Nordisk / National Library of Medicine DailyMed, Jun 18, 2026. Accessed Oct 19, 2026.
  2. OZEMPIC (semaglutide) injection, for subcutaneous use - Full Prescribing Information (SPL). Novo Nordisk / National Library of Medicine DailyMed, Jun 1, 2026. Accessed Oct 19, 2026.