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Read All Reviews : Activyl for Dogs

Description :

Fleas are a perennial problem in pets. Proper sanitary measures can reduce the prevalence of flea infestation but these annoying pests manage to recur in spite of precautions. Flea eggs and larvae are more of a problem than adult fleas.  It needs a lethal remedy to fight this menace and various topical spot-on solutions available are just the right thing to do.

Activyl for Dogs is one such product from Merck that addresses the flea problem. A onetime application every month provides complete protection against adult fleas and its larvae and eggs, effectively preventing flea reinfestation.

How Activyl Works?

The active ingredient, Indoxacarb in Activyl acts using a process that reacts with flea’s own enzymes. The active ingredient spreads through the pet’s skin. As soon as a flea bites the pet, it also absorbs Indoxacarb which when reaching the flea’s gut changes the enzymes. This is what called bioactivation - the flea dies due to the paralyzing effect of the ingredient.

Average Rating
Based on 15 ratings

Top Reviews

Best for my dog!

This stuff is amazing- totally waterproof which I find is essential for dogs, no need to plan their baths around flea treatments which is handy in all seasons. It also has no odor which is bonus. If other brands have failed to hold in your dog’s coat, give this a try.

Perfect solution

Activyl is the perfect solution to kill fleas from my dog. It has also shown a great effect by restricting the reinfestation of fleas in my dog.


Awesome! Activyl was recommended by the vet when a friend adopted a shelter dog. We, too, tried it and have had no "breakthrough" infestations as we did with the previous product.

Great prices

I hate using any medication on my three dogs because of all the chemicals they have into them. However, I got totally wrong when I tried Actvyl as it worked perfectly without any side effects . Good product with great prices and at vetsupply it is absolutely free without any charges for shipping.

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