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Brand: Sentinel
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Sentinel Spectrum Tasty Chews

4.9 / 5
Reviews: 67
Summer Sale - Get 5% Discount - Use Code: "SUM22"

Sentinel Spectrum for Dogs - Flea, Heartworm and Wormer Treatment Control

A monthly tasty chew given for the prevention and control of fleas, heartworm and intestinal worms in dogs.

Sentinel Spectrum is a multi-spectrum dewormer treatment for dogs. It prevents heartworm infection by killing immature form of heartworm. The oral treatment controls adult hookworms, and removes and prevents roundworms, tapeworms, and whipworms. It provides long-term protection and controls flea infestations and flea allergy dermatitis in dogs by preventing the development of flea eggs and larvae. *Does not kill adult fleas currently on the dog. This monthly dosage protects dogs from all the harmful intestinal worms, prevents heartworms and controls flea infestations -long-term.

How does it work?

Used in the prevention, control and treatment of various worm infections, Sentinel Spectrum is an excellent oral treatment for dogs. It contains milbemycin oxime, which disrupts worms’ nervous system, and cause death. It eliminates the immature stage of the heartworm larvae and the adult stage of hookworms, roundworms and whipworms. Sentinel Spectrum also contains lufenuron, an insect development inhibitor, which breaks the flea life cycle by inhibiting flea egg development. It prevents flea eggs from hatching and thus prevents and controls flea infestation by breaking the flea life cycle. Does not kill existing adult fleas on the dog.

  • Before administering Sentinel Spectrum, weigh your dog first.
  • Administer Sentinel Spectrum once a month on the same day of each month year round.
  • Provide the tablet directly into the mouth or mix it with food and give. Ensure that the entire dose has been swallowed.


Dog weight Dog size color
Up To 4Kg Very Small Orange
4 To 11Kg Small Green
11 To 22Kg Medium Yellow
22 To 45Kg Large Blue
  • Sentinel Spectrum is an effective preventive against heartworms and other intestinal worms.
  • It comes in palatable beef-flavored chewable tablets that are like treats for dogs.
  • Sentinel Spectrum provides the broad spectrum coverage against gastrointestinal parasites such as hookworms, roundworms, whipworms and tapeworms.
  • It kills flea eggs, flea larvae and prevents flea infestation in dogs. Does not kill existing adult fleas on the dog.
  • Sentinel Spectrum is easy to administer in dogs.
  • It is safe to use in pregnant and lactating animals.
  • Sentinel Spectrum is for dog use only.
  • Keep it out of reach of children and pets.
  • Store in a dry place at room temperature.


  • In rare cases, adverse reactions like vomiting, diarrhea, depression/lethargy or pruritus have been reported.
  • Contact your vet if any unusual signs are seen after treatment.


  • This product must be administered MONTHLY to prevent heartworm infection.
  • It is recommended for use all year round.
  • Please seek advice from your veterinarian regarding heartworm testing PRIOR to using this product if:
  • your pet is older than 8 weeks of age when you start using this product OR
  • one of the monthly doses is missed or is late by more than 1 week.
Target Species Dogs
Mode of administration Oral
Active Ingredients Milbemycin Oxime
Manufacturer Elanco
Brand Name Sentinel Spectrum

APVMA Approval Number

Sentinel Spectrum Tasty Chews For Small Dogs 4 To 11Kg (Green) 62392/53216
Sentinel Spectrum Tasty Chews For Large Dogs 22 To 45Kg (Blue) 62390/53219
Product Reviews
Reviews: 67
5 Star 4 Star 3 Star 2 Star 1 Star

Sentinel Spectrum Tasty Chews

Sentinel Spectrum Tasty Chews

Do you recommend this product to others?

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Effective product

Sentinel Spectrum is an effective treatment. Quite good.


Keep It Up!

This was my first order for Vet Supply and I am really satisfied by their customer services, as I received my ordered item several days earlier than expected and with no shipping charges.


Very easy to administer

I have been giving this oral chewable to my dog since last few months and it is totally worth it. It treats all the worms and fleas with no apparent side effects.


Peace of mind

I have been using this product on my Maltese Poodle for a few years now and never had an issue. She has never had a negative reaction to the product and gobbles it up each month just like a treat! Gives me peace of mind that she is protected from nasties.


no more fuss

these chews quite tasty, so hard times during dosage

Have A Question?
Q: I have a male Bernese 62 kg what should I use for flee tick & heartworm protection.

A: Choose any from Sentinel Spectrum, Nexgard Spectra, Credelio Plus

By, on Nov 22, 2021
0 3
Q: I have a 6 month old Boxer pup. Is she too young to start on sentinel? Thanks

A: Do not use in puppies less than six weeks of age. Do not use in dogs or puppies less than two pounds of body weight.

By, on Nov 11, 2021
1 3
Q: Hi I was wondering what I could give my dog for paralysis ticks and ticks as I have already bought and given him Sentinel?

A: Please ask your Vet

By, on Sep 14, 2021
2 2
Q: What is the difference between Sentinel and Sentinel spectrum for dogs?

A: Sentinel Spectrum contains a third active ingredient called Praziquantel. This ingredient is effective against tapeworms.

By, on Aug 20, 2021
1 3
Q: What is better for cavoodle puppy Nexgard Spectra or Sentinel spectrum to start them on?

A: Please ask your vet.

By, on May 21, 2021
1 3
Q: What's the difference between Sentinel Spectrum as Comfortis Plus?

A: Sentinel Spectrum Protects against heartworm, intestinal worms,tapeworm and fleas by stopping them from breeding. Comfortis Plus Kills fleas rapidly and, controls intestinal worms including roundworm, hookworm and whipworm and also provides protection from heartworm.

By, on Mar 02, 2021
4 2
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Summer Sale
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