My Jada and Bogie are on advantage multi. This covers fleas,heartworm and other worms. I would like to know opinions on whether to use year round or not. My two use pee pads and are not outside hardly at all. I don't want to do anything to harm them and I just wondered if it hurts to not use it during the winter months as long as they have blood work done in the spring before starting up again.
