Sentinel Spectrum® Chews provide powerful, vet-approved protection against six major internal and external parasites — all in one tasty, beef-flavored monthly chew. Trusted by veterinarians and pet parents alike, Sentinel Spectrum is designed for year-round protection against heartworms, fleas, and a full range of intestinal worms

Formulated with milbemycin oxime, praziquantel, and lufenuron, this all-in-one preventative targets the life cycle of parasites, stopping infestations before they start.

Protects Against:

Heartworm Prevention

• Prevents deadly heartworm disease (Dirofilaria immitis)
  

Monthly use ensures continuous protection against mosquito-transmitted larvae

Fleas

• Inhibits flea egg development (via lufenuron)
• Breaks the flea life cycle to prevent future infestations

Note: Does not kill adult fleas — best used with adulticide like Capstar or NexGard for full control

Tapeworms

•  Controls Dipylidium caninum and Taenia pisiformis tapeworm infections

Added protection for dogs who scavenge or eat infected prey

Roundworms

• Treats and controls Toxocara canis and Toxascaris leonina

Hookworms

• Targets Ancylostoma caninum, A. braziliense, and Uncinaria stenocephala

Whipworms

• Effective against Trichuris vulpis

Why Choose Sentinel Spectrum?

• Broad-spectrum  internal parasite coverag
• Convenient once-a-month oral chew
• Trusted multi-active formula used by vets worldwide 
• Soft beef-flavored tablet dogs love
• Ideal for dogs who frequent dog parks, daycare, or travel