Simparica TRIO

Simparica TRIO

Attention Sentinel Users:

We will be phasing out of Sentinel this month. Sentinel has been a fantastic heartworm preventative, internal parasite control agent and flea control tool! However, with the advent of the highly effective Isoxazoline flea and tick monthly products such as Simparica, Credelio, Nexguard and Bravecto, the need for Sentinel as a flea prevention tool has become outdated.

A new product called Simparica Trio will be replacing Sentinel in our pharmacy. It is a monthly chewable tablet that not only kills fleas and ticks within 2 hours, but also prevents heartworms and kills internal parasites.

Another available protocol for your dog is to use Interceptor Plus and Simparica monthly. This will be the most comprehensive preventative combination as Interceptor Plus not only kills roundworms, hookworms, and whipworms like Sentinel, but it also kills tapeworms.

Another great option is to get a ProHeart 12 injection for a year’s worth of heartworm preventative and hookworm control and use Simparica monthly for flea and tick control.

If you simply must have Sentinel, no problem, you can get it on our online pharmacy located on our website or request a written prescription.

We apologize for any inconvenience this may cause but as technology improves outcomes, we want to make sure we are offering you the best options at the most reasonable prices. Of course, we will do our best to clearly explain your options for the protocol that works best for your pet to keep them parasite and disease free.

Yours sincerely,

The doctors at Ruckersville Animal Hospital


8301 Seminole Trail, Ruckersville, VA. 22968

Office Hours



7:00 am-6:00 pm


7:00 am-6:00 pm


7:00 am-6:00 pm


7:00 am-6:00 pm


7:00 am-6:00 pm


8:00 am-12:00 pm