A note to our customers: Sentinel is not available nationwide due to a halt in production. There is no expected date for production to resume. Letter from Manufacturer.

In an effort to assist you in meeting all your pet's medication needs, we are offering the following alternatives to Sentinel in the chart below. As always, we want to offer you the best in customer care, therefore, after you have made your selection, we will contact your vet for approval. Don't miss a dose of heartworm preventative. Heartworms can be fatal.