It has no warning on it at all, the instructions were to spray directly on to the snake from a distance of 30cms and remove the water bowl for 1 day so he cant soak. I googled other peoples reviews of this spray before using it and most people seemed to spray directly on to the snake. I did spray directly on to my BP but for a very short time and then I concentrated on his enclosure and decorations more then him, I let the viv vent before putting him back in.

http://www.mite-spray.com/?gclid=CNa...FcwV0wodohsPnw

Above is a link to the spray I used, I purchased it from my local reptile shop.