Can you get the dog heartworm drug through Corsi nation.
I just cant be dealing with trying to figure out horse dosing if a Dr wont prescribe it.
You can order the horse ivermectin ( apple flavor paste) on Amazon or farm stores...a tube is $6.50... but the dose is for a 1250 pound horse
so if your horse only weighs 150 pounds then the amount to take must be calculated to be less than the whole tube! The way to do this is described in various sites.
If your doc or a teledoc wont prescribe Stromectol ( ivermectin) as a prophylactic you can order it from overseas.