The Panacur C 4 gram Canine Dewormer Treatment is designed for large dogs weighing up to 40lbs. This product, made by the trusted brand Panacur, contains Fenbendazole as its main ingredient. Each pack includes 2 packets of treatment, ensuring a comprehensive solution to worm infestations in your furry companion. This product is a reliable and effective option for maintaining your dog's health and eliminating pesky parasites.