Cosentyx (secukinumab) is a medication used to treat certain autoimmune diseases such as psoriasis, psoriatic arthritis, and ankylosing spondylitis. According to the provided sources, there are several contraindications and precautions to consider before using Cosentyx.

Firstly, Cosentyx should not be used in patients who have had a severe allergic reaction to secukinumab or any of its ingredients [1]. Additionally, patients with active infections, such as tuberculosis, should not use Cosentyx until the infection is treated and resolved [2].

Other precautions to consider before using Cosentyx include monitoring patients for signs of infections, such as fever, chills, and cough, as Cosentyx can increase the risk of infections [2]. Patients with a history of inflammatory bowel disease (IBD) should also be monitored for worsening of their condition while taking Cosentyx [2].

Furthermore, Cosentyx may interact with other medications, including immunosuppressants, which may increase the risk of infections [3]. Patients should inform their healthcare provider of all medications they are taking before starting Cosentyx.

In conclusion, Cosentyx has several contraindications and precautions to consider before use. Patients should inform their healthcare provider of any medical conditions or medications they are taking before starting Cosentyx. It is essential to follow the prescribing instructions and to report any adverse effects or changes in symptoms to a healthcare provider promptly.

Sources:
[1] DrugPatentWatch. Cosentyx. https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX. Accessed 15 Nov 2021.
[2] Cosentyx Prescribing Information. Novartis Pharmaceuticals Corporation. https://www.novartis.com/us-en/sites/novartis_us/files/cosentyx.pdf. Accessed 15 Nov 2021.
[3] Drugs.com. Cosentyx (secukinumab) Drug Interactions. https://www.drugs.com/drug-interactions/secukinumab,cosentyx.html. Accessed 15 Nov 2021.