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My dogs were refusing to eat the Heartguard or throwing it up so i changed them to Revolution and everything seems great. what are your thoughts on this product? It’s very hard to get from our vets. Thanks.

Karen
Georgia

When Revolution was released ten or twelve years ago, it looked set to revolutionize (Heh! Get it?) parasite prevention in pets. It was billed as a once monthly topical preventative for heartworm, roundworm, and several other parasites.

But Revolution appears to suffer from being a jack of all trades and a master of none. Most dermatologists I know feel that it is of only middling effectiveness against fleas.

And more seriously, dogs’ skin appears to be relatively impervious to the active ingredient in Revolution. Many experts have questioned the efficacy of the product as a heartworm preventative in dogs. (Cats do appear to absorb the product, and therefore most experts believe that Revolution works well as a heartworm preventative in cats.)

When it comes to heartworm prevention, Revolution is probably better than nothing. But if your dog won’t take oral Heartgard or Interceptor, you may want to consider switching to Advantage Multi. It is a topical product that appears to be very effective against heartworm.