Panacur Granule Singles by Merck is a dog dewormer formulated with fenbendazole for convenient antiparasitic support. Each oral powder packet contains 222 mg/g fenbendazole (22.2% w/w) to help deworm dogs. Available in single pouches of 1 g, 1.8 g, and 4.5 g to accommodate different dogs and dosing directions on the label. A trusted choice for canine antiparasitic care and dog health & wellness routines. DIN 02297043; non-prescription in Canada (prescription required in Quebec).