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....

.. https://drbryanpwalsh.com/Tetter-grandpa-of-Ciriaco-from-Scarborough?Perceymot=282 november 2005  (14).may 17, 2018, 10:42am edt.

the obvious reason: their big-spending pharmaceutical advertisers would drop them like hot potatoes..

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