Vetsupply: This powerful treatment aids in treating roundworms, hookworms, whipworms, tapeworms and hydatid tapeworms. It is a safe treatment for all breeds of dogs and can be given to pregnant bitches, which should be treated at mating, before whelping, and then every 3 months. Moreover, this treatment is extremely easy to use. Besides, it is recommended for puppies over the age of 3 months.