Drug Interaction Report

If you are currently being treated or have recently been treated with ustekinumab, you should let your doctor know before receiving RSV mRNA vaccine (cvx 326). Depending on the dose and length of time you have been on ustekinumab, you may have a reduced response to the vaccine. In some situations, your doctor may want to delay vaccination to give your body time to recover from the effects of ustekinumab therapy. If you have recently been vaccinated with RSV mRNA vaccine (cvx 326), your doctor may choose to postpone treatment with ustekinumab for a couple of weeks or more. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.