Does Cosentyx (secukinumab) cause weight gain?
Cosentyx (secukinumab) is used to treat certain inflammatory conditions such as plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis. In the prescribing information and commonly reported side effects for biologics like Cosentyx, weight gain is not listed as a typical or expected drug effect.
What side effects are more commonly linked to Cosentyx?
The more commonly discussed Cosentyx side effects are things like upper respiratory infections, and sometimes injection-site reactions. Because those are the routinely reported effects, people searching for weight changes are often looking for a less common adverse effect—something Cosentyx is not known for as a primary problem.
Can people still gain weight while taking Cosentyx?
Yes, weight can change during treatment for many reasons that are not caused by the medication itself, including:
- changes in diet, activity, or overall health
- improvements in pain or mobility (which can increase calorie intake or reduce stress)
- other medications taken at the same time (for example, corticosteroids can cause weight gain)
- natural day-to-day weight fluctuation
Who might be more likely to notice weight changes?
People who also take other drugs that affect appetite, fluid balance, or metabolism may be more likely to attribute weight changes to Cosentyx when the cause is actually another medication. If weight gain is rapid, substantial, or comes with swelling, it is especially important to contact a clinician promptly.
What should you do if you notice weight gain on Cosentyx?
If you’re seeing weight gain after starting Cosentyx, it helps to track:
- how much weight changed and over what time period
- whether you gained fluid (for example, noticeable swelling in legs/face) vs. fat (more gradual increase)
- any other new symptoms
- all other medications and supplements you’re taking
A clinician can review whether the timing matches Cosentyx, check for alternative causes, and adjust treatment if needed.
Is there any patent or exclusivity angle that affects this question?
This question is about side effects rather than access or exclusivity, so patent/exclusivity sources aren’t directly relevant. DrugPatentWatch.com is useful for patent research and drug competition, not for side-effect attribution.
Sources: None provided.