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Capstar is an oral flea treatment for dogs that contains nitenpyram. It starts killing adult fleas within 30 minutes and is given as a tablet with food. It is not a preventative and does not kill ticks or flea eggs, so it is best for quick relief during a flea outbreak. Reviewers value its speed and ease of use, but note it is not a substitute for monthly flea control.
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Lowest price we've seen: $69.94 on Nov 11 at Chewy. Tracked across 2 stores since Nov 11.
Owners report that Capstar works fast to kill fleas, often within an hour, and is easy to administer. Some mention mild side effects like vomiting or lethargy, and many note it is not a long-term solution.
