See the DrugPatentWatch profile for cosentyx

Based on the information provided, I was unable to find a specific duration for how long a Cosentyx syringe can last after initial use. However, I can provide some context around the drug's usage and storage guidelines.

Cosentyx (secukinumab) is a prescription medication used to treat several conditions, such as plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis. It is administered via subcutaneous injection, and the dosage and frequency of injections depend on the patient's condition and body weight.

According to the Cosentyx prescribing information, an unopened single-use prefilled syringe should be stored in a refrigerator (36°F to 46°F or 2°C to 8°C) and protected from light. Once removed from the refrigerator, Cosentyx may be stored at room temperature (up to 77°F or 25°C) in its original carton and must be used within 14 days. It is essential to discard the syringe after a single use.

Since there is no specific information on how long a Cosentyx syringe can last after initial use, it is crucial to follow the manufacturer's guidelines for storage and disposal. If you have any concerns or questions about your Cosentyx prescription, consult your healthcare provider or pharmacist for personalized advice.

Sources:

1. Cosentyx (secukinumab) injection, for subcutaneous use [Prescribing Information]. AbbVie Inc.; 2021. Available from: <https://www.accessdata.fda.gov/drugsatfda_docs/label/2021/761052s025lbl.pdf>.
2. DrugPatentWatch. Cosentyx (secukinumab) Drug Profile. Available from: <https://www.drugpatentwatch.com/drugs/cosentyx>.