Sentinel Spectrum Chewables

  • Monthly tasty chew for the prevention and control of fleas, heart worm, and intestinal worms in dogs.
  • Beef-flavoured and palatable.
  • 97% of dogs accept them straight from the hand.

From $50.95



Style Number: NVA-OHW-00021-CONFIG

Product Detail: Sentinel Spectrum Chewables

Sentinel Spectrum Chewables For Dogs

Sentinel Spectrum is manufactured by Novartis Animal Health Australasia Pty Ltd as a broad spectrum preventative medication against many common canine parasites.

This product is given as a once monthly oral dose and is flavoured to enhance palatability for dogs.

Dogs should be tested for heartworm by their veterinarian prior to beginning on Sentinel Spectrum.

Sentinel Spectrum aids in the control of fleas by ensuring that the life cycle of the flea is interrupted at several stages by interrupting the development of juvenile stages of the flea. Sentinel Spectrum does not kill adult fleas. Another product which kills adult fleas may be required occasionally to kill any adult fleas on the animal.

All animals in the household should be on an effective flea prevention program to ensure maximal effect of this product.

How to use the product

Sentinel Spectrum is given as an oral dosage once a month, preferably on the same date each month. It should be given with a full meal.

Animals are dosed according to weight and as such a growing animal's weight will need to be monitored to ensure the correct dose is given each month during the animal's growth phase.

Treatment can begin at 2 weeks of age in puppies but needs to be given again at 4, 8 and 12 weeks of age before continuing on the regular monthly dosing schedule.


Four different sizes of product are available, each given according to the animal's weight.

  1. Dogs up to 4kg - orange pack
  2. Dogs 4-11kg - green pack
  3. Dogs 11-22kg - yellow pack
  4. Dogs 22-45kg - blue pack

Dogs over 45kg are dosed with the appropriate combination of tablets to equate to their weight. The packs are available in 6 and 12 packs.

Tips and tricks

In order to ensure continuity of coverage with Sentinel Spectrum, doses should be given on the same date each month. Many owners find the 1st of each month to be an easy date to remember. Dose dates should be recorded on the calendar for easy reference.

Sentinel Spectrum are a flavoured chewable tablet so dogs should readily accept the dosage. If they do not accept the tablet it can be given by placing the tablet at the back of the dog's tongue in the middle and then holding the muzzle closed and the head slightly elevated until the dog swallows. A veterinarian or veterinary nurse may be able to teach you this technique if required.

Dogs should only be given the tablet appropriate for their weight. Tablets should not be split and shared between animals.

In the case of severe flea infestations, a thorough cleaning of the animal's environment and bedding is recommended at the start of treatment.

Active ingredients

Sentinel Spectrum contains 3 active ingredients

  1. Milbemycin oxime
  2. Lufeneron
  3. Praziquantel

Contraindications and warnings

Animals that are heartworm positive may have adverse reactions to Sentinel Spectrum; therefore all dogs should be heartworm tested and be free of both adult heartworms and microfilaria prior to starting on this product.

If a dose is missed, contact your veterinarian for advice.

In the case of overdose, contact your veterinarian or poisons information centre.

It's Nice To Know You'll Save More On
Sentinel Spectrum Chewables At Trixan Pet Supplies
Item PETstock Petbarn Vet Products Direct Trixan Pet Supplies Savings
Sentinel Spectrum Chews Green for Small Dogs 4-11kg - 3 Pack $62.99 $60.81 $51.82 $50.95 $12.04
Sentinel Spectrum Chews Yellow for Medium Dogs 11-22kg - 6 Pack $121.99 $113.50 $102.35 $101.95 $20.04
Sentinel Spectrum Chews Blue for Large Dogs 22-45kg - 3 Pack $73.99 $72.99 $61.40 $60.95 $13.04
Sentinel Spectrum Chews Blue for Large Dogs 22-45kg - 6 Pack $132.99 $125.78 $111.51 $110.95 $22.04
Sentinel Spectrum Chews Orange for Very Small Dogs up to 4kg - 6 Pack $102.99 $98.75 $88.00 $86.95 $16.04
Prices correct as at 1st of each month. Comparison based on prices published online. Comparison excludes cost of shipping, promotions or coupons. Prices subject to change without notice.

Ratings & Reviews

Based on 118 Review(s)

Average Rating


Ratings Overview











Most Recent Reviews

Dogs Love Sentinel
Written by Lesley
Apr 17, 2015

My Malamute and Border Collie just love Sentinel. It is such a convenient way to give them what they need. And I LOVE the price. Have recommended Trixan Pet to many friends over the years and even to my Vet Nurse daughter. Thanks :-)

Written by Robbie
Apr 02, 2015

This is the only method our dog will take when it comes to monthly treatment! Thumbs up and value for money.

Great Danes prefer Sentinel!
Written by Mouse
Mar 15, 2015

I have a Great Dane and for over 10 years, Sentinel has been part of his daily health management.. He LOVES the flavour and it's comforting to know this one tastey chewable is keeping him healthy on the inside.

Why I buy Sentinel
Written by Donna
Nov 27, 2014

I love this product as it covers everything I need for my pets in the ease of a single table once a month. Heartworm, all intestinal worms (including tapeworm) and flea control. What more could you ask for?

sentinel spectrum
Written by Gill
Nov 10, 2014

originally purchased on vet advice and have found very effective my grooming lady has never found a flea on my little mate in nearly five years

Written by sara
Nov 06, 2014

I find Sentinel so eay to use. Once a month simple chewable tablet that our dog loves.

Sentinel Spectrum Chewables
Written by Dal
Oct 03, 2014

After using many different products for the control of fleas and worming I came across this product which is so easy for our dogs to chew and they love the taste. Have had not problems with fleas since using. Highly recommend.

Sentinel Large Dog
Written by Ewen James
Aug 20, 2014

I have used this product for 5 yrs & my 2 Mastiff's just love the treats monthly, this product treats for all types of worm & fleas.... Not like the others who only treat for a few worms. We have been to many places & it is great to know they will not pass on or receive any nasty's from other dog's or pass onto the family. Best prices I have found via Trixan Pets by far. Reminder stickers are great to put on the calendar to remind me it is that time of the month again & to re-order.

Written by Tina James
Aug 20, 2014

I have used this product for the past 6 yrs & have found it to be the only number 1 product of it's kind. It treats our dog's for every type of worm & flea treatment, not like the other products that only treat a select type of worm. The dog's enjoy the taste & are very happy to take it monthly without any hesitation. I also do not purchase this product anywhere else but via Trixan Pets as it is the best price all round compared to all other shops, pet shops, vets & chemists including postage. The products are super fast in postage & reliable. I always recommend Trixan Pets & Sentinel to all other dog owners.

Sentinel Spectrum
Written by Fullyhow
Aug 20, 2014

Great product for our two staffies. We give them a tablet each on the first of the month and that's it. The product is excellent and our vet is very happy that our dogs are using it.