Best pill Simparica TRIO is our top pick for the best flea and tick treatment for dogs in pill form. The fast-acting chewable tablet kills more parasites than any other oral product. It begins ...

The tapered vials make application a snap. Capstar Oral Flea Treatment for Dogs: available at Amazon Capstar doesn’t produce a preventative effect, but it does a great job killing fleas and ...

Oral medications: Oral flea medications come in tablets or chews your dog consumes. These treatments typically work ...