Petco offers Sentinel both online and at their in-store .
: Ensure you select the correct color-coded box based on your dog's current weight: Brown : 2–10 lbs Green : 11–25 lbs Yellow : 26–50 lbs White : 51–100 lbs where to buy sentinel flavor tabs
: You can use the Merck Animal Health Vet Finder to see which local clinics near you carry the brand. Petco offers Sentinel both online and at their in-store
Reputable online pharmacies like Allivet , Fetch Pet Rx , and Valley Vet Supply are authorized sellers that handle the prescription verification for you. Quick Buying Tips Fetch Pet Rx
Banfield Pet Hospital and VCA Animal Hospitals sell them directly through their official online shops. :