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Originally Posted by ladyjane  They say that Sentinel is safe if a puppy is 4 weeks and over 2 pounds. I believe that Heartgard is not given until six months. |
My vet is very confident its not Sentinel. I'm ruling nothing out yet at this point. Max is 4 pounds and very very strong. He and Cooper are playing tug of war and they are almost equally matched. It's so odd to me because he is in such incredible physical shape.