  
 Sentinel is a monthly heartworm and flea control pill. Sentinel prevents heartworm disease, controls flea populations, hookworm infections, removes and controls adult roundworm and whipworm infections. 6-month supply and 12 month supply.
A prescription is required for Sentinel. Please place the order and provide your vet’s name, phone number, fax number along with your pet’s name and weight on the 2nd page of the order form. Once we receive the prescription approval we will ship your order. We do not accept faxed prescriptions.
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