I thought this product worked well until one of my cats started to lose hair. It got to the stage where I noticed him pulling out mouthfuls! I took the cat to the vet and told him I suspected the Bravecto Plus; he examined the cat for fungal/ringworm and did a skin scrape. He agreed it is possible the Bravect and I returned the next supply I bought from him days earlier to top-up their flea and tick treatment. My cat is now on Niralone and his hair loss has stopped. Now I am very worried what to get my cats against ticks and flees in the area?