Bowhouse Online Store - Voted Best of Sydney for All Your Pet Needs  

Bowhouse Online Store  • T 02 8011 0200  • E


New & Improved
ZIWI logo 
For Dogs or Cats
Top Brands


Sentinel Spectrum Chews - All round flea and worm protection for your dog

Sentinel Spectrum Chews: All round flea, heartworm and intestinal worm protector

Customer Rating 


Extras or Savings Package

Bookmark and Share

            Spectrum for Dogs

Sentinel Spectrum Chews

Protect your dog against deadly heartworm and intestinal worms and from fleas - for less than A$2.50 a day.

Sentinel Spectrum Flavour Tabs for Dogs protects against all 3 parasite groups:

1  Heartworm.
2  Intestinal worms - roundworm, whipworm, hookworm and tapeworm.
3  Fleas.

Sentinel Spectrum is also suitable for puppies: it is available in small dog sizes that can be given to puppies from 2 weeks of age.

Sentinel Spectrum

  • Prevents heartworm infection
  • Controls roundworm, whipworm, hookworm and tapeworm.
  • Prevents and controls fleas long-term
  • Treats flea allergy dermatitis.

One beef-flavoured chew administered once a month, is all it takes to protect your dog against the most dangerous worms and fleas. 

SENTINEL® SPECTRUM comes in 4 different packs, each containing 6 tablets:

Pack Colour Dog Size 3-pack 6-pack
Brown Very Small Dogs 0 to 4 kg $42.95 $79.95
Green Small-Medium Dogs 4 to 11 kg $44.95 $84.95
Yellow Large Dogs 11 to 22kg $46.95 $89.95
Blue Extra Large Dogs 22 to 45 kg $49.95 $94.95

For giant breeds over 45kg, administer more than one tablet each month
  e.g. for a Great Dane 60 to 80kg,
administer 2 tablets for extra large dogs each month.

Multi-buy offer:
Buy 2 or more 6-packs of Sentinel, or Sentinel together with Advantix, and save $1 per pack of Sentinel.  

We endorse this Product:
Our own dogs - 2 sociable and active outdoor great danes -  have taken Sentinel at the beginning of every month, plus Advantix in the middle of the hot humid summer months when tick protection is vital, and they have never had more than momentary botheration from fleas!

It is normal for dogs to become a little "flushed" on their underside while this product works its magic.
That's why we prefer to administer it at bed-time, after they have been well-exercised, and around subsequent feeding time, when all they want to do is sleep.

Please note that Sentinel acts as a growth inhibitor, preventing fleas from multiplying on your dog.
It is possible for adult fleas to land on your dog and cause it bother, although they will not be able to multiply and cause total infestation. 

If this happens, then we recommend Capstar as a fast-acting knock-out of the adult fleas - but you will probably find this unnecessary if you are combining Sentinel with Advantix to doubly protect your dog.



  • Can kill, cause heart disease and organ failure
  • Untreated, advanced cases can kill within 72 hours of symptoms appearing
  • Spread by mosquitoes, so all dogs are at risk 
About gastro-intestinal worms

Intestinal Worms


  • Cause diarrhoea, vomiting, abdominal pain, stunted growth and a “pot belly” appearance
  • Roundworm are present in most puppies when born and can also be picked up by dogs from soil


  • Cause bloody diarrhoea, which can develop into anaemia and in extreme cases death
  • Attach to the intestinal lining, leaving bleeding intestinal wounds
  • Are picked up from the environment, and passed through faeces of infected dogs
  • Larvae can be swallowed or can penetrate the skin
  • Can be dangerous for all dogs, especially puppies
  • Cause bloody diarrhoea and anaemia
  • Are picked up from the soil, and passed through faeces of infected dogs
  • Frequently evade detection
  • Live in the small intestine
  • Cause irritation around the anal region
  • Are picked up by eating fleas or uncooked offal from infected animals
  • Can cause serious risk to humans


  • Can cause extreme discomfort and a serious canine skin condition called flea allergy dermatitis
  • Spread tapeworm, another parasite that may affect your dog

Note: This product does not control Ringworm:

Ringworm is in fact not a worm, but a fungal complaint.
It manifested itself badly in the warm humid NSW climate that we  experienced last summer, and is easily identified by use of the Urine-Free Black Light. 
If your dog has ringworm, then we recommend you try Neem Oil shampoo or soap and/or Malaseb shampoo (call 02-9300 9390 to order). 
If the problems persists more than a week after treatment, then see your vet.
And it's infectious, so keep your dog away from other animals and kids till you are sure it is cleared up.

The SENTINEL SPECTRUM 100% Guarantee

SENTINEL SPECTRUM will prevent heartworm and control hookworm, roundworm, whipworm, and tapeworm in your dog(s). In the unlikely event that your dog shows clinical signs of disease caused by any of these worms and tests positive, when SENTINEL SPECTRUM has been administered according to the label and leaflet instructions, Novartis Animal Health will reimburse all reasonable costs incurred in treating those diseases.

SENTINEL SPECTRUM will control flea infestations in your home.

For more information, visit the Novartis web-site by clicking here.

If your dog really doesn't like ingesting tablets, then you might consider an alternative "spot-on" treatment.
We recommend either Revolution or Advocate - both very effective 3-in-1-treatments easily administered by application to the dog's skin around the top of the spine.
And for total protection against ticks and midges, use Advantix topical treatment mid-month.

Currently there are no reviews for this product.
Currently there are no questions for this product.

Shopping Cart
Your basket is empty
Please click here to sign in or register.
Last Visited Products

Home | Help | Search | View Cart | Check Out | Contact Us

Bowhouse   •  T 02 8011 0200     E