If all you are collecting is the Chysahl and Adamantite, you do not need to use any Cordials. Grab the Chysahl when it pops, poof over for the Adamantite, and wait a bit after it spawns, you'll have time to regenerate your GP and gather before it disappears on you.

Its only if you want to add more stuff to your gathering that you really need to start chugging.