Cosentyx is a medication used to treat certain autoimmune diseases, such as psoriasis and psoriatic arthritis. According to the drug's label [3], it is not recommended for use during pregnancy as it may harm a developing baby. The label states that "there are no adequate and well-controlled studies in pregnant women" and that "cosentyx may cause fetal harm when administered to a pregnant woman." Additionally, the label advises that women of childbearing age should use effective contraception while taking cosentyx and for at least 20 weeks after stopping treatment.

The official website for cosentyx [2] also warns against using the medication during pregnancy. It states that "if you are pregnant or planning to become pregnant, talk to your doctor before using cosentyx." The website also advises women to inform their doctor if they become pregnant while taking cosentyx.

The drug patent watch website [1] provides information about the drug's patent status and other general information but does not offer any specific information about the drug's effects on pregnancy.

In summary, both the drug's label and official website advise against using cosentyx during pregnancy as it may harm a developing baby. Women of childbearing age who are taking cosentyx should use effective contraception and inform their doctor if they become pregnant.

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