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Activyl For Large Dogs 44 – 88 lbs Purple (4 PACK)

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Price: $64.21

Price $64.21
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Activyl for Dogs

Activyl is a swift topical treatment for dogs that is a monthly cure for fleas on the dogs. Made with latest and advanced technology called bioactivation, Activyl is one of its own kinds in the market. A monthly spot-on treatment proves to be efficient against the flea re-infestation and prevents them from causing harm to the dog. The fast acting formula eliminates the adult fleas in addition to destroying flea eggs and larva as well.

Activyl – Treatment for fleas on dogs

A Merck product, Activyl is an innovative product that makes complete use of new developments. The active ingredient present in the topical treatment is Indoxacarb, which is a pesticide that has a unique mode of action on flea control. This ingredient acts by using fleas own enzymes and converts it into a highly potent insecticide. It then blocks the sodium channels of the fleas and paralyzes them.

After applying Activyl on the dog, the remedy spreads in the entire body through the skin of the dog. And, as soon as the flea bites the pet, it absorbs the ingredient thereby triggering the bioactivation process and killing all the adult fleas and disrupting the flea life cycle.

Direction for use
  • Hold the applicator in an upright position away from your face and snap the tip by bending it and folding it back on itself.
  • Part the hair and place the applicator tip against the skin on the base of the skull to avoid licking.
  • Squeeze the applicator firmly and empty the entire contents directly to the skin.
  • Do not touch the treated area until it has completely dried.
  • Repeat the above process again in 30 days.
  • For Larger Dogs: Apply the contents from the shoulder blades till the tail in 2-3 spots along the way.
Key Benefits
  • Monthly spot-on treatment
  • Waterproof and a quick drying product
  • Provides quick relief
  • Odor less and safe to be applied on dogs and puppies of 8 weeks of age
  • Prevents re-infestation of the fleas and destroys the flea life cycle
  • Uses advanced technology
  • Do not reuse the Activyl container.
  • Read the label before opening the pack.
  • Store in cool and dry place.
  • Keep away from the reach of pets and children.
  • Store it away from heated places and open flames.
  • Wash hands after application of the treatment.
  • Do not eat, drink or smoke near the dog while administering the treatment.
  • Do not wash or bathe your pet or let him swim for 24-48 hours after applying Activyl.

For me, it is easy to apply and runs through whole month. Once I apply this, I never find any flea on Rocky or his surroundings.


The results were positive. It is now part of my flea control program to safeguard my pet from fleas.


It is cheap and effective. A must-buy product.