Can you get a hepatitis B (Hep B) vaccine while taking Cosentyx?
Yes. Cosentyx (secukinumab) is not a live vaccine, and vaccination is generally possible while you’re on it. Hepatitis B vaccines used in routine care are inactivated (non-live), so they’re typically allowed for people taking biologic medicines like Cosentyx.
Is the Hep B vaccine considered “safe” with Cosentyx, or could it cause problems?
Because the Hep B shot is not a live vaccine, it is not expected to cause hepatitis B infection. The main practical issue is immune response: medicines that affect the immune system can sometimes reduce how strongly your body responds to vaccines. Your clinician may check whether you’re adequately immunized, especially if you have risk factors for hepatitis B.
Should you get vaccinated before starting Cosentyx instead of during treatment?
Many clinicians prefer to update vaccines before starting immunosuppressive therapy when possible, but it is still common to vaccinate during treatment if you’re not protected. If you haven’t had Hep B vaccination before, ask your prescriber about timing and whether you need post-vaccine blood testing (to confirm immunity).
What if you already have hepatitis B or test positive—does that change the plan?
Yes. If you’ve ever had hepatitis B exposure or infection, you should not rely on vaccination alone. People who have active or prior hepatitis B may need specific monitoring and sometimes antiviral treatment while on biologics. Your healthcare team typically uses blood tests (for example, HBsAg and other markers) to decide what to do.
Which vaccine schedule is used with Cosentyx, and will you need extra doses?
The exact schedule depends on which Hep B product and whether you’re considered low risk, high risk, or previously vaccinated. Clinicians may use standard adult schedules or an accelerated schedule for faster protection, and they may do antibody testing after completion to confirm you developed protective immunity.
Can you take any other vaccines while on Cosentyx?
In general, non-live vaccines are usually acceptable, while live vaccines are typically avoided during treatment with immune-modifying biologics. Your pharmacist or clinician can confirm which vaccine types are considered live versus non-live for your specific situation.
Practical next steps to ask your doctor
Ask your prescriber:
- Whether you’re up to date on Hep B vaccination.
- Whether you should get Hep B blood tests first (depending on your history and risk).
- Whether you should get post-vaccine antibody testing to confirm protection after completing the series.
If you share your age, whether you’ve had Hep B shots before, and any prior test results, I can help you think through what questions to bring to your doctor.