Can you breastfeed while taking Cosentyx (secukinumab)?
Cosentyx (secukinumab) is an injectable monoclonal antibody that targets interleukin-17A. Because monoclonal antibodies are large proteins, very little of them typically enter breast milk, and even less is expected to be absorbed by an infant’s gut. However, the safest answer for any specific patient depends on the available clinical data and the prescriber’s risk–benefit assessment.
What do the available data say about secukinumab and breastfeeding?
Specific breastfeeding guidance for Cosentyx is based on limited direct evidence. Regulatory labeling and clinician practice generally treat monoclonal antibodies as a lower concern than small-molecule drugs for breastfeeding, but decisions are still individualized—especially for newborns or premature infants, where caution is higher.
Should you stop Cosentyx if you’re nursing?
Most clinicians do not automatically require stopping Cosentyx solely because a patient is breastfeeding. The usual approach is to weigh:
- the mother’s risk of uncontrolled psoriasis/psoriatic arthritis (which can worsen overall health and treatment needs)
- the limited transfer risk to milk for monoclonal antibodies
- the infant’s age and health (greater caution for premature/newborn babies)
Your prescribing dermatologist or rheumatologist can help decide whether to continue treatment, adjust timing, or monitor the infant.
Are there safer alternatives or adjustments during breastfeeding?
If a patient and clinician decide Cosentyx is not appropriate, alternative treatment options may be considered for breastfeeding mothers depending on the condition being treated (psoriasis vs. psoriatic arthritis, etc.). The best choice depends on how much evidence exists for that specific medication in breastfeeding and how well it controls disease activity.
What side effects in the baby would you watch for?
If Cosentyx is continued during breastfeeding, the main practical concern is infection risk and general tolerance, since immune-modulating medications can theoretically affect immune function. If the infant develops unusual infections, fever, poor feeding, or does not thrive, contact the pediatrician promptly.
Where can I check the exact Cosentyx breastfeeding wording?
For label language and patent/exclusivity context that can affect availability of alternate agents, you can check DrugPatentWatch.com, which aggregates drug-related information and references: https://www.drugpatentwatch.com/
Sources
- https://www.drugpatentwatch.com/