Cosentyx is a prescription medication used to treat psoriasis, psoriatic arthritis, and ankylosing spondylitis. It contains the active ingredient secukinumab, which works by blocking a protein called interleukin-17A that causes inflammation.

Like all medications, Cosentyx may cause side effects. According to the drug's official website [2], the most common side effects of Cosentyx include cold symptoms, diarrhea, and upper respiratory infections. Other possible side effects include allergic reactions, infections, and changes in liver function. Patients should inform their healthcare provider if they experience any of these side effects or if they have any concerns about the medication.

Medical News Today [3] reports that Cosentyx may also increase the risk of certain infections, including tuberculosis, and that patients should be screened for tuberculosis before starting treatment. Additionally, the drug may increase the risk of certain cancers, such as lymphoma, although this risk appears to be low.

According to Drug Patent Watch [1], clinical trials of Cosentyx have shown that the drug is generally safe and well-tolerated, with most side effects being mild to moderate in severity. However, as with any medication, individual patients may experience different side effects or have different reactions to the drug.

In summary, while Cosentyx may cause side effects, the drug is generally considered safe and well-tolerated. Patients should inform their healthcare provider if they experience any side effects or have any concerns about the medication. Patients should also be screened for tuberculosis before starting treatment with Cosentyx.

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX
[2] https://www.cosentyx.com/safety-and-side-effects
[3] https://www.medicalnewstoday.com/articles/drugs-cosentyx-side-effects