Adequan is only available through a veterinary supply. You would have to get a vet to write a scrip, but be careful as it is mainly for horses, and there have been no human trials....
Several years ago, "Spot-on" developed to kill horse flies on horses and cattle, was the drug of choice used by most vets to kill fleas on cats and dogs. They discontinued its use after several people in the vet trade had autopsies which pointed to habitual use of "Spot-On" as cause of liver failure resulting in death.
