If you're using Ivermectin on your birds, it has lost its efficacy in treating poultry worms as well as poultry mites in some parts of the country due to overuse. Not to mention it has a long withdrawal period because it stays in the blood stream for a long time.I didnt see ivermectin on the list so im good I dont buy the other stuff id sooner cull a bird that need that before paying allot for something that might not even work