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Activyl for Dogs

Activyl For Medium Dogs 22 – 44 lbs Pink

Pack Size Qty. Price Sale Price  
4 Pack
$89.80 $53.88 By Product



Activyl Flea Spot-On for Dogs

Activyl for dogs is one-time monthly spot-on treatment that kills adult fleas and prevents re-infestations. It kills adult fleas within 8 hours of application and actively attacks flea larvae for four weeks. The waterproof solution is a safe flea treatment for 8 weeks and older puppies and dogs. Quick to dry and easy to apply, Activyl is an absolute flea treatment for puppies and dogs.

Activyl for dogs is a fast acting flea treatment that kills adult fleas and flea larvae in dogs. It gives strong protection against fleas for a span of four weeks. With adulticidal and larvicidal properties, the active ingredient indoxacarb kills adult fleas within 8 hours and eliminates flea larvae for an entire month.

Manufactured by Merck Animal Health, Activyl topical treatment kills parasites through the method of bioactivation. The method involves activating indoxacarb through flea’s own enzymes. Once activated, it destroys fleas, and larvae by impeding nerve transmission, paralyzing and finally kills. The odor-free, waterproof treatment suits eight weeks and older puppies and dogs.

Key Benefits
  • Fast action treatment that kills fleas within 8 hours.
  • Attacks flea eggs and larvae, and thus stops multiplication of these external parasites.
  • It uses new technology to control flea.
  • Waterproof treatment that remains effective even after pets get wet.
  • Prevents flea re-infestations.
  • Assists in treating Flea Allergy Dermatitis (FAD).
  • Odorless topical treatment that remains effective even after exposure to sunlight.
Direction of use

Activyl for dogs comes in five color-coded packs categorized as per the weight of dogs. Blue for puppies and toy dogs, Rust for small dogs, Pink for medium dogs, Magenta for large dogs and purple for extra large dogs. Refer the dosage table for details.

Part the fur between the shoulder blades of the pet until the skin is visible. For small dogs, apply at only one spot while for larger dogs apply at 2-3 spots across the backbone of the dog.

To apply, place the tip of the opened pipette on the skin and squeeze out the liquid until the applicator is empty. For large dogs, distribute equally at different spots.

Allow the area to be dry and do not bath the pet for the next 24 hours. Do not apply on pregnant and nursing female dogs. Consult a veterinarian before treating weak, debilitated and sick pets.


Dog Size

Dog Weight


Puppies/toy dog

4.1-14 lbs

1 applicator with 0.51 ml/0.02 fl oz

Small dogs

14.1-22 lbs

1 applicator with 0.77 ml/0.03 fl oz

Medium dogs

22.1-44 lbs

1 applicator with 1.54 ml/0.05 fl oz

Large dogs

44.1-88 lbs

1 applicator with 3.08 ml/0.1 fl oz

Extra large dogs

88.1-132 lbs

1 applicator with 4.62 ml/0.16 fl oz

  • Do not use on puppies younger than 8 weeks of age.
  • Avoid children and pets to play or groom the treated pet until the application site is dry.
  • Avoid any contact with pet’s eyes and mouth.
  • Stop the pet from licking the application site as ingestion of Activyl is harmful.
  • Ingestion may result in excessive salivation, abnormal shaking of head, licking of the face and squinting.
  • Wash hands and exposed skin with soap and water. Otherwise, it may result in skin irritation.
  • Consult a veterinarian, if the pet shows any signs of reaction.