@ddnene I have a friend who has a French Bulldog. Her dog was diagnosed with Demodex when she was about 6 mos. old. She has gotten a shot of Ivermectin at the vet's once every month. I am not sure if anything else is added to the shot, but I think it's just the Ivermectin. She is 7 years old, and has had no problems with it all these years. I could find out for you-and the dosage-if you need.