Can cosentyx influence a woman's menstrual cycle?

Short answer: It’s not a known or common effect of Cosentyx (secukinumab) to directly influence a woman’s menstrual cycle.

What this means:
- The official prescribing information for Cosentyx does not list menstrual changes as a common side effect.
- That doesn’t completely rule out rare or unlisted effects, but there isn’t solid evidence showing Cosentyx routinely alters periods.
- Many things can affect the menstrual cycle (stress, illness, other medications, hormonal conditions, pregnancy, etc.). If you notice changes after starting Cosentyx, it’s worth discussing with your doctor to rule out pregnancy or other causes.

If you have concerns:
- If you might be pregnant or plan to become pregnant, contact your healthcare provider. IL-17 inhibitors like Cosentyx can cross the placenta, and pregnancy safety data are not as extensive as for some other drugs; your provider can advise how to proceed based on your disease, treatment history, and pregnancy plans.
- If you’re breastfeeding, or if you notice unusual or heavy bleeding, missed periods, or other worrying symptoms, tell your clinician.
- Keep track of your cycle and any other new symptoms, and bring this information to your next appointment.

If you want, I can summarize the specific labeling language or help you think of questions to ask your doctor.