. . . .: "evidence for decreased calcitonin gene-related peptide (cgrp) receptors and compromised responsiveness to cgrp of fetoplacental vessels in preeclamptic pregnancies." . http://lm360.us/Meach-daughter-of-Talamante-from-Aichet?Cananeigh=268 while all of the drugs work on cgrp, they don�t all work the same way. three of them target the cgrp molecule itself. aimovig goes after cgrp's receptor in the brain. . .