We also use the Revolution. It has the flea and heartworm in one dosage. We like it because it is dosed more specifically on weight. I have 2 girls on the 1-5 lbs. and 3 on the 5-10 lb. You can wash them after 24 hours too without compromising the effectiveness. I have never seen a flea on my girls...EVER!
I would also recommend that you get your baby tested before starting any heartworm prevention. |