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highlights
  • Multi-spectrum treatment for dogs
  • Protects against both external and internal parasites
  • Tasty flavored tablet makes administration easy
  • Long-lasting formula protects for one month
  • Provides protection against Fleas, heartworms, roundworms, hookworms, whipworms
  • Information
  • Features
  • How to Use
  • Safety
  • Sentinel Ingredients
Information
tab article

Sentinel Flavor Tabs for Dogs

What is Sentinel? Sentinel is a palatable pork, liver-flavored tablet for dogs that offers broad-spectrum protection against both external and internal parasites. This monthly formula for dogs is composed of high-quality ingredients to protect four weeks and older puppies and dogs that weigh 2 lbs or greater.

Sentinel Flea and Worm Treatment Sentinel for dogs prevents and controls fleas. This monthly tablet for dogs prevents heartworm disease caused by Dirofilaria immitis. It controls adult hookworms and kills and controls roundworm and whipworm infestations. To achieve complete flea control, it is recommended to use an adulticide in conjunction with Sentinel.

How does Sentinel work?

Sentinel Flavor Tabs for dogs contain two powerful ingredients, lufenuron and milbemycin oxime. Lufenuron breaks the flea life cycle by preventing egg development and stopping them from maturing into adults. Milbemycin oxime interferes with the neurotransmission of parasites. It kills the tissue stage of heartworm larvae and thus prevents heartworm disease. Plus, it eliminates the adult stage of hookworm, roundworm, and whipworm infestations.

Features
Benefits

  • Broad-spectrum formula
  • Palatable pork, liver flavor dogs love
  • Easy-to-administer tablet form
  • Controls and prevents flea infestations
  • Prevents heartworm disease
  • Kills adult hookworms, roundworms, and whipworms

How to Use
Directions

  • Administer Sentinel Flavor Tabs orally, once every month.
  • The recommended minimum dosage is 0.23mg/lb milbemycin oxime and 4.55mg/lb lufenuron.
  • Alternatively, these tablets can be given by hiding in dog food. For optimum results, ensure that the dog completes the meal.
  • For adequate absorption of the treatment, give Sentinel Flavor Tablets immediately after or together with their regular meal.

Follow the table below for accurate dosage administration:

Dog Weight(Lbs)

Milbemycin oxime Per Tablet

Lufenuron Per Tablet

Number of Tablets Per Month

11 – 25 lbs

5.75 mg

115 mg

One

26 – 50 lbs

11.5 mg

230 mg

One

51 – 100 lbs

23 mg

460 mg

One

For over 100lbs dogs, appropriate combination of tablets should be given

Safety
Safety

A transient shock like reaction may occur on giving Sentinel to a dog with adult heartworm infection. To avoid this, it is a must to consult a veterinarian and get your dog tested for adult heartworm infection. If found infected get the dog treat first for the adult heartworm infection and then after start Sentinel treatment.

Sentinel is safe to be given to puppies from 6 weeks of age and breeding dogs. Also, it can be given to collies dogs which are sensitive to ivermectin.

Though it is highly safe but in some rare cases the dog might show adverse reactions like vomiting, diarrhea, depression or pruritus. Please contact your vet in case of any unusual signs displayed after treatment.

Sentinel Ingredients
Ingredients

  • Milbemycin Oxime
  • Lufenuron

Sentinel Reviews (36)

Product Rated 4.6/5 (36 customer reviews)

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Janice – December 04, 2025
Great

It works great! I prefer this one for my pet..

Harold – November 23, 2025
Works well

This one is a rock star. Works really well for my pet..

Nancy – October 13, 2025
Goodbye fleas

An effective flea preventive for my pet. My goodbye to fleas!.

Neal – September 03, 2025
Tasty flavor

My pet actually enjoys the dosage. It has very tasty flavor..

Donald – August 13, 2025
Good to go with

A good product to go with. It works well for my pet..

Jeremy – July 23, 2025
Good flea remover

A good flea remover for my buddy..

Mia – June 03, 2025
Good heartworm preventive

It is a very good heartworm preventive for my pet..

Lennox – March 31, 2025
Tasty treatment

It is like a treat for my pet. She loves the taste..

Kane – February 10, 2025
Effective for heartworm protection

Very effective option for my pet's heartworm protection..

Kane – February 10, 2025
Effective for heartworm protection

Very effective option for my pet's heartworm protection..