Sentinel Spectrum


Sentinel Spectrum is used to treat fleas, heartworms, roundworms, hookworms, whipworms, and tapeworms in dogs.

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Sentinel Spectrum Basics

Sentinel Spectrum controls heartworms, fleas, roundworms, hookworms, whipworms, and tapeworms in dogs.  This product contains Milbemycin Oxime, Praziquantel, and Lufenuron.

Sentinel Spectrum requires a prescription from your veterinarian. It comes as a chewable tablet that is administered once every 30 days. Each chewable is cured, cut, and packaged in a protective blister pack to preserve freshness.

Sentinel Spectrum Directions

Use as directed by your veterinarian, and follow all instructions printed on the prescription label. Administer by mouth once each month.

Store at room temperature, protected from light and moisture.

Sentinel Spectrum Dosage for Dogs

  • 2 – 8 lbs: Give 1 tablet by mouth 1 time monthly.
    • 2.3 mg of Milbemycin
    • 46 mg of Lufenuron
    • 22.8 mg of Praziquantel
  • 8.1 – 25 lbs: Give 1 tablet by mouth 1 time monthly.
    • 5.75 mg of Milbemycin
    • 115 mg of Lufenuron
    • 57 mg of Praziquantel
  •  25.1 – 50 lbs: Give 1 tablet by mouth 1 time monthly.
    • 11.5 mg of Milbemycin
    • 230 mg of Lufenuron
    • 114 mg of Praziquantel
  • 50.1 – 100 lbs: Give 1 tablet by mouth 1 time monthly.
    • 23 mg of Milbemycin
    • 460 mg of Lufenuron
    • 228 mg of Praziquantel
  • Over 100 lbs: Give a combination of two tablets equaling your pet’s total weight. 
    • Give combination of tablets by mouth 1 time monthly.

Sentinel Spectrum Warnings

Keep out of the reach of children and pets. Sentinel Spectrum is not intended for human use. Do not use in dogs and puppies weighing less than 2 pounds and less than 6 weeks old. Dogs should be tested for heartworms prior to administering this medication. Using Sentinel Spectrum in dogs with pre-existing heartworm infections could lead to serious adverse effects. Use with caution in pregnant or lactating animals. If you notice any behavioral or physiological changes in your pet while administering this product, contact your veterinarian immediately.

If you have any additional questions regarding this product, please contact us at (877)220-6337. A member of our pharmacy staff will be happy to assist you!

Additional information

Weight Range

2-8lbs Orange (Sold in Single Months), 8.1-25lbs Green (Sold in Single Months), 25.1-50lbs Yellow (Sold in Single Months), 50.1-100lbs Blue (Sold in Single Months)