$48.99 to $72.99


Sentinel Flavor Tabs by Merck help protect your dog against five different types of parasites: fleas, heartworms, roundworms, hookworms, and whipworms. Sentinel comes in easy-to-give chewable tablets, saving you the headache of trying to trick your dog into taking its medicine. Sentinel Flavor Tabs are given once a month.


  • Broad spectrum protection
  • Protects against fleas, heartworms, roundworms, hookworms, and whipworms
  • Easy to give, tasty tabs


Give tablets as directed by your veterinarian. Tablets should be given with meals monthly. 


Prescription Drug Policy:

Prescriptions CAN NOT be shipped to North Carolina, Hawaii or Alaska at this time.

Prescription drugs can only be shipped upon receipt of an original prescription from a licensed veterinarian. FarmVet can accept an original prescription in one of the following ways:
  • The original prescription may be mailed to:
    1254 Old Hillsboro Rd, Franklin,TN 37069 
  • A licensed veterinarian may fax the Rx to 615-370-8502.
    The fax must originate from the veterinarian's office.
  • A licensed veterinarian can call & leave a voicemail with your prescription information with our pharmacy at 615-277-5602.

Prescriptions are non-refundable. Prescriptions are refillable if indicated by your vet, for up to one year from the original date. At the end of one year, prescriptions must be updated. Written prescriptions must include the veterinarian's license number, telephone number, and address. Federal law restricts the use of Rx drugs to use by, or on the order of a licensed veterinarian.


Give precisely as prescribed by your veterinarian. Your dog should be tested for heartworms before beginning Sentinel. Any active heartworm infections should be dealt with before beginning. Sentinel
Keep away from children and pets.

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