You may experience some or none of the Maxalt side effects explained above. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried. Therefore, be sure to let your healthcare provider know if you develop any side effects while taking Maxalt. Also let your healthcare provider know if you develop something that "just does not seem right" during treatment with the medicine. While it may not be a Maxalt side effect, your healthcare provider will be able to diagnose and treat the problem.