Based on the sources provided, there is no indication that Cosentyx has been discontinued. Cosentyx is a prescription medication used to treat several conditions, including plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis. The drug is manufactured by Novartis and was approved by the FDA in 2015 [3].

According to the drug's official website, Cosentyx is still available and is actively prescribed for the treatment of ankylosing spondylitis [2]. Additionally, the FDA label for Cosentyx, last updated in 2016, does not indicate any discontinuation of the drug [3].

Drug Patent Watch, a website that tracks patent expirations and exclusivities, lists Cosentyx as having patent protection until 2035, which further supports the idea that the drug has not been discontinued [1].

In conclusion, there is no evidence to suggest that Cosentyx has been discontinued. The drug is still available and is being prescribed for the treatment of several conditions.

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX
[2] https://www.cosentyx.com/ankylosing-spondylitis/faq
[3] https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/125504s001s002lbl.pdf