Common side effects of Cosentyx (secukinumab) include upper respiratory tract infections, diarrhea, and nausea [3]. Other common side effects may include injection site reactions, such as redness, itching, or pain at the injection site [2]. In addition, patients may experience headaches, back pain, and high blood pressure [2]. It is important to note that these side effects are not exhaustive, and individuals may experience different reactions to the medication. It is recommended to consult with a healthcare professional for a complete understanding of potential side effects and any concerns related to Cosentyx [2].

Sources:
[2] Cosentyx: Safety and Side Effects. (n.d.). Retrieved from https://www.cosentyx.com/all/safety-and-side-effects
[3] Cosentyx. (n.d.). Retrieved from https://www.drugs.com/cosentyx.html