Forteo ® (teriparatide [rDNA origin] injection)

20-mcg daily dose in a 2.4-mL prefilled delivery device

This information is provided in response to your request. Resources may contain information about doses, uses, formulations and populations different from product labeling. See Prescribing Information above, if applicable.

FORTEO® (teriparatide [rDNA origin] injection): Use Beyond the 28-Day In-Use Period

Forteo should only be used for a total of 28 days once the delivery device is used for the first time.

Detailed Information

Teriparatide should only be used for a total of 28 days once the delivery device is used for the first time.1

Teriparatide has only been tested for use through 28 days. Therefore, do not use a teriparatide delivery device beyond 28 days from the first injection.2

Discard the teriparatide delivery device after the 28-day in-use period, even if there is still medication left.1

Use of Teriparatide Beyond 28 Days

Accidental use of teriparatide beyond 28 days is not likely to cause harm; however, is not recommended because

  • it contains preservatives which help protect against germs

  • beyond 28 days, the preservatives may not work as well, potentially allowing germs to grow in the liquid medicine in the delivery device, and

  • it is possible that teriparatide may not work as well after 28 days as growth of germs may cause the medicine to begin to breakdown.2

Therefore, products with preservative, such as teriparatide, should not be used beyond 28 days.1

European Medicines Agency Recommendation

The European Medicines Agency’s Committee for Medicinal Products for Human Use recommends that in-use sterile solutions be used within 28 days due to the potential for reduced sterility of the medication after this time interval.3

Enclosed Prescribing Information

FORTEO® (teriparatide [rDNA origin] injection), Lilly


1. Forteo [package insert]. Indianapolis IN: Eli Lilly and Company; 2019.

2. Data on file, Eli Lilly and Company and/or one of its subsidiaries.

3. The European Medicines Agency: Committee for Medicinal Products for Human Use. Available at: . Accessed December 10, 2019.

Date of Last Review: November 11, 2019

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