![Man paddling in a canoe with two dogs](https://www.sentinelpet.com/wp-content/uploads/sites/64/2021/09/home-hero-img-huge@2x.jpg)
SITE MAP
![Man and two dogs in a red canoe](https://www.sentinelpet.com/wp-content/uploads/sites/64/2022/03/site-map-mobile-hero-image-e1646155933849.png?w=750)
SITE MAP
HOME
SENTINEL SPECTRUM Chews
SENTINEL FLAVOR TABS
FACTS ABOUT HEARTWORMS & OTHER PARASITES
REBATES
GET SENTINEL
KEEP IN TOUCH
PRODUCT LABELS
SENTINEL SPECTRUM CHEWS
SENTINEL FLAVOR TABS
FOR VETERINARIANS
PRIVACY POLICY
TERMS OF USE
CONTACT US
![Sentinel logo](https://www.sentinelpet.com/wp-content/uploads/sites/64/2021/10/sentinel-brand-products-logo.png?w=301)
For technical assistance or to report a suspected adverse drug reaction, contact Merck Animal Health at 1-800-224-5318.
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.