For some insight from folks in Texas who are in the middle of this questio, you might try pulling up "Texas Hunting Forum, scroll down and look for the " Hog & Javelina" board, and read RexMitchell's thread. Lots of info from mfg'ers on the use of several drugs. too.
This is NOT gonna go away anytime soon, and the vagaries of application with the product in question scare the bejesus out of me. IMO killing hogs is pretty much fixin to be a SSS proposition, with the possible legal ramifications involved.
Ron
Sad. I raised a family on venison and wild hogs. Always considered wild Hogs manna from
Heaven. Personally speaking, I rather have two plump 30 pound shoats slow cooking on the pit that 200 pounds of venison in the freezer. JMHO.