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  • Rated4/5
  • (7 Reviews)
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Sentinel Heartworm Prevention for Dogs

Sentinel flavored tablets are tasty beef flavored chews for preventing heartworms. They are also used for killing and controlling fleas, roundworms, hookworms, whipworms, and tapeworms. The oral treatment saves the pet from several parasite borne diseases. It can be administered to all breeds of puppies and dogs.

How it works?

A Novartis / Elanco product, Sentinel are flavored tablets for preventing heartworm infection and for treating fleas and gastrointestinal worms. The beef flavored tablets contains Lufenuron, an Insect Development Inhibitor (IDI) that destroys the larval stages of heartworm, fleas and other parasites. It prevents re-infestation by killing the immature life stages of fleas and heartworms.

The powerful treatment remains active for four consecutive weeks. The tasty chews can be administered to puppies and adult dogs and is safe for pregnant female dogs.

Kindly note that as Novartis is now part of Elanco, the manufacturer’s name may differ on the product packs according to the stock availability.

This product worked great for my dog

I am guessing my monthly topical treatment was not working on my new dog. I had to switch brands. this chew goes all well on multiple parasites.

better than other one

it is much effective than a previous treatment, would recommend

First time purchaser

Got this as my aunt suggested. lets wait and watch how it will turn now. so far so good.


I am a breeder of schnauzers for 20 yrs. and have been using sentinel for at least the last 10. It is the only preventative I have found safe for pregnant moms. We have never had any birth defects. No flees ticks or worms. Our dogs live on the avg 14-16 yrs. outstanding. Never seen any side effects. Puppies are not born with round worms either!!!

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