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Sentry FiproGuard is a monthly topical flea and tick treatment for dogs 89 to 132 pounds, sold as a six-month supply of tubes. Its active ingredient is fipronil, the same insecticide used in Frontline Plus, but FiproGuard has no methoprene or other insect growth regulator, so it kills adult fleas and ticks and chewing lice without the extra egg and larval control Frontline Plus adds. Owners report fast flea kill, a mild odor and waterproof protection that holds up to swimming. It suits large-dog owners who want a straightforward fipronil drop treatment and are willing to apply it carefully along the back.
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Lowest price we've seen: $41.99 on Nov 11 at Chewy. Tracked across 1 store since Nov 11.
Owners mostly report that FiproGuard kills fleas quickly, has little smell and keeps working through swimming. Complaints center on residue and discoloration on the coat and on the liquid spreading down the back during application.
Sentry FiproGuard is a topical flea and tick treatment for dogs weighing 89 to 132 pounds. Its active ingredient is Fipronil at 9.70%. It kills adult fleas and ticks and protects against chewing lice.
The treatment also stops the flea life cycle by killing flea eggs and flea larvae for up to 12 weeks. It is fast acting and waterproof. It can be used on puppies eight weeks and older.
To apply, squeeze the tube firmly and put all of the solution on the dog's skin as a stripe. Start at the back of the neck and stop at a point midway between the neck and tail.
