It is surprising tha a vet would recommend splitting the dose. There is no way to know if the med has been evenly distributed. Ivermectin (heartguard) kills all baby worms that are 45 days old and younger. If you miss a month there will be a 15 day period where your dog could be affected by mosquitos.
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |