PROTECT AGAINST
Unseen* PARASITES 
WITH SENTINEL
SPECTRUM CHEWS

COMPARE SENTINEL SPECTRUM CHEWS WITH OTHER LEADING BRANDS

icon: arrow-rightLearn more about parasites in dogs
SENTINEL SPECTRUM CHEWS1Interceptor®
Plus2
Heartgard®
Plus3
2.0 LBS.+YesYesYes
INDICATED AGES6 Weeks+6 Weeks +6 Weeks +
PREVENTS HEARTWORMSYesYesYes
PREVENTS FLEA EGGS FROM HATCHINGYesNoNo
CONTROLS INTESTINAL PARASITES4 Types4 Types2 Types

SENTINEL SPECTRUM CHEWS PROVIDES BROAD-SPECTRUM PROTECTION AGAINST 6 TYPES OF PARASITES1

Heartworms

Milbemycin oxime prevents heartworm disease1

Hookworms

Milbemycin oxime treats and controls adult hookworms1

Roundworms

Milbemycin oxime treats and controls adult roundworms1

Whipworms

Milbemycin oxime treats and controls adult whipworms1

Tapeworms

Praziquantel treats and controls adult tapeworms1

Immature Fleas

Lufenuron prevents and controls flea populations.1

* SENTINEL SPECTRUM Chews protects against heartworm disease, 4 types of intestinal parasites, and prevents flea eggs from hatching.
Indicated for dogs and puppies two pounds of body weight or greater and six weeks of age and older.
A. caninum.
§ Prevents flea eggs from hatching.

PROVEN TO BE SAFE

SENTINEL SPECTRUM Chews has been shown to be safe for puppies as young as 6 weeks of age.1

WHEN SHOULD TREATMENT BEGIN IN PUPPIES?

Heartworms: As early as possible and no later than 8 weeks of age4
Fleas: As soon after birth as possible with an approved product5
Roundworms: Starting at 2 weeks of age with an approved anthemintic6

DOGS LOVE THE BEEF AND BACON-FLAVOR7 OF SENTINEL SPECTRUM CHEWS

In a study of 117 dogs, SENTINEL SPECTRUM was found to be especially well-received1

NEVER FORGET A DOSE

Remember to protect your dog all year round

DOSING FOR SENTINEL SPECTRUM CHEWS

For dogs > 100 lbs., give the appropriate combination of chews

Important dosing information

  • Give SENTINEL SPECTRUM Chews to dogs by mouth, during a meal or immediately after
  • For heartworm prevention, give once monthly for at least 6 months after contact with mosquitoes

Buy more, save more on SENTINEL Brand Products

Now through December 31, 2025, save up to $75 on year-round parasite protection for your pet. Start saving and get your pets protected against the unseen parasites!

Get rebates

Sentinel® Flavor Tabs®

You’ve got options!

SEE IF YOUR VETERINARIAN CARRIES SENTINEL BRAND PRODUCTS

SENTINEL Brand Products require a prescription from a veterinarian.
Enter your ZIP code below to see which ones carry SENTINEL Brand Products.

Find a vet

Important Safety Information

SENTINEL® SPECTRUM® Chews (milbemycin oxime/lufenuron/praziquantel). Dogs should be tested for heartworm prior to use. Mild hypersensitivity reactions have been noted in some dogs carrying a high number of circulating microfilariae. Treatment with fewer than 6 monthly doses after the last exposure to mosquitoes may not provide complete heartworm prevention. For complete product information refer to the product insert.

SENTINEL® FLAVOR TABS® (milbemycin oxime/lufenuron). Dogs should be tested for heartworm prior to use. In a small percentage of treated dogs, digestive, neurologic, and skin side effects may occur. For complete product information refer to the product insert.

For technical assistance or to report a suspected adverse drug reaction, contact Merck Animal Health at 1-800-224-5318.

Sources

  1. SENTINEL® SPECTRUM® Chews product label. Rahway, NJ: Intervet, Inc.; 2020.
  2. Interceptor® Plus. Greenfield, IN: Elanco US Inc.; 2020.
  3. HEARTGARD® Plus. Duluth, GA: Boehringer Ingelheim Animal Health USA, Inc.; 2019.
  4. Current canine guidelines for the prevention, diagnosis, and management of heartworm (Dirofilaria immitis) infection in dogs. American Heartworm Society. Updated 2018. Accessed May 21, 2021. https://d3ft8sckhnqim2.cloudfront.net/images/pdf/AHS_Canine_Guidelines_11_13_20.pdf?1605556516
  5. Fleas. Companion Animal Parasite Council. Updated September 19, 2017. Accessed May 21, 2021. https://capcvet.org/guidelines/fleas
  6. Ascarid. Companion Animal Parasite Council. Updated July 29, 2020. Accessed May 21, 2021. https://capcvet.org/guidelines/ascarid/
  7. Data on file. Merck Animal Health.