If a Pet has signs of worms (worms in feces) is it safe to give the Pet dog heartguard plus to eradicate worms? The dog which includes worms hasnt been on heartguard for around 2 months and eats other dogs feces… browse far morethree months ago Juan Oh my god! I'm terribly sorry in your loss Krystal! I gave my 2 dogs this pill. My puppy