Treatment for active heartworm infection in dogs consists of a series of injections given in the muscle of the back. (tulsapetsmagazine.com)
Dogs must be tested for active heartworm infection before starting heartworm preventative medication. (oakhillsanimal.com)
If milbemycin is inadvertantly given to a dog with active heartworm infection, the microfilariae are killed much faster than with the ivermectin products. (vin.com)