my dog is slowly being weaned off steroids, prednisone , and it is about that time again where he needs to take his heart worm preventives as well. is it okay for me to give him both heart worm preventives and prednisone?

my dog is pregnant and i noticed white worms in her stool can i give her medication without harming her puppies?

We have given our dog his heart worm and flea/tick meds regularly, since adopting last Feb. We have used all his heart worm medication and wondered if we need to continue it. If I remember correctly, I think it is optional to keep them on it year round, but wondered if anyone else stops the heart worm medication during the winter months. Any suggestions are appreciated.