After quite awile,my dr put me on percocet 10/325 again once again.in the past ive had problems with certain percocets giving me bad headaches,and bringing on migraines.the one pharmacy by where i used to live even said that i might be allergic to the fillers in certain ones.that made it very difficult for me.i know i couldnt take the yellow endo ones,they were real bad for causing the headaches.what is a person in my cituation supposed to do? is it ok to call around different pharmacies to ask them what brand they carry? i remember hating to do that,because of the not so friendly reaction i would sometimes get.i dont know what to do.