 Well, yeah, there's NexGuard, which is just a flea and tick preventive, and then there's NexGuard Plus that has the heartworm preventive in it. I don't know. I haven't priced them out, so I don't know which is more expensive. But NexGuard used with a separate heartworm prevention like Interceptor or HeartGuard is quite often cheaper than the combo drugs like NexGuard Plus or Samparica Trio. Okay, I just talked to my vet tax down there, and $183 no matter which one I get.