Well, I was in that same place three years ago and paid out of pocket for Emgality (discount plan) which was still about $400 monthly with assistance--otherwise $775 permonth! Finally my insurance (Kaiser) approved ONE CGRP onto their formulary (Ajovy). While it does not work quite as well for me, I pay $25 per month for Ajovy! It works most of the time to prevent migraines but not at all to prevent the nightly inflammatory sleep-headadche). And it does not help as effectively as Emgality to reduce scotomas (blind spots) and zig-zags in my vision, light sensitivity, OR dry eye syndrome (apparently squinting more with Ajovy versus Emgality). The GI side effects, however are not as bad and that it is affordable is a HUGE plus. Will none of the manufacturers help you with an added discount? Sometimes pharmacists have other programs or suggestions. There is a Facebook Group for people with migraines who are on (or seek to be taking) CGRPs. If you join the free group and type "medicare" in the search window you can view relevant discussions and suggestions. One good recent discussion is by Teresa January 6, 2023. Hope For Migraine: CGRP & New Migraine Treatments link is: https://www.facebook.com/groups/221860401870994. I hope you can find a means to get a CGRP that will help.