Rimegepant can be used to treat an active migraine headache or to prevent migraine attacks from happening. Although it is not known exactly how rimegepant works, it is known to block the action of a substance called calcitonin gene-related peptide (CGRP) by attaching to its receptor sites in the brain. People with migraine may have raised levels of CGRP. By blocking the effects of CGRP, rimegepant can stop an active migraine attack and also reduce the number of attacks over time.
This is a companion discussion topic for the original article at https://patient.info/medicine/rimegepant-for-migraine-headache-vydura