Merck Activyl for cats and kittens 8 weeks+ 2-9Lbs $79.99 Brand Merck Animal Health Type Spot-On Treatment EPA Registration Number 773-93 Model Merck Animal Health ACTIVYL for Cats and Kittens MPN 044973 UPC 8713184153135 condition New For cats and Kittens 8 weeks & Up 2-9 LBS ONLYOnce a month treatment3 monthly doses