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Originally Posted by BabieChloe  What I don't like about sentinel though is that it has a dewormer and I feel that's unnecessary.. or is it? |
The component in Sentinel that controls heartworm (milbemycin oxime) also treats for whipworm, hookworm, and roundworm, so there isn't another dewormer added to it. The second component -- lufenuron -- prevents flea eggs from developing.
There is another newer product, Sentinel Spectrum, that does have a third component that treats for tapeworm, and if that's what you are talking about I would have to agree with you. There is no need to treat for tapeworm if fleas are not present.
The Ivermectin in Heartguard (and Heartguard Plus) controls heartworm, while Heartguard Plus does have another deworming component -- pyrantel -- that is for roundworms and hookworms.
With regards to standard Sentinel or Heartguard/Heartguard Plus, they are all fine. I started using Sentinel about 16 years ago, and before that used Heartguard. They have been around a very long time with a great track record.