Quick view Sentinel Spectrum Chews for Dogs 2-8 lbs (up to 4 kg) - Orange 3 Chews Sentinel Spectrum Was: $56.27 Sale Price: Now: $45.02 A monthly tasty chew given for the prevention and control of fleas, heartworm, and intestinal worms (including tapeworm) in dogs. Benefits & Features: Broad-Spectrum Protection: Prevents... Qty in Cart: 0 Quantity ( in cart): Decrease Quantity: Increase Quantity: Price: Was: $56.27 Sale Price: Now: $45.02 Subtotal: Add to Cart