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Effipro Plus is a topical flea and tick treatment for dogs from 8 weeks old, combining fipronil to kill adult fleas and ticks with pyriproxyfen to stop flea eggs and larvae from developing. It is waterproof and lasts up to four weeks per dose. It also claims control of biting mosquitoes, which matters for heartworm risk. Compared with single-ingredient spot-ons, the added insect growth regulator gives it an edge on breaking the flea life cycle, though it does not repel ticks and cannot be used on cats.
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Lowest price we've seen: $40.13 on Nov 11 at HealthWarehouse.com. Tracked across 7 stores since Nov 11.
Owners generally rate it well for clearing fleas and keeping them away, and like that it stays effective through baths and swimming. A minority report irritation at the spot and say it did not fully clear heavy tick pressure.
Virbac EFFIPRO Plus is a topical flea and tick treatment for dogs and puppies 8 weeks of age or older. It contains the active ingredients fipronil and pyriproxyfen. It targets fleas, flea eggs, flea larvae, ticks and chewing lice, and it helps control biting mosquitoes, which can carry heartworm disease.
The waterproof solution is applied to the skin and works for up to four weeks. It should be applied no more often than every 4 weeks. This package is for dogs weighing 23 to 44.9 lbs and contains 3 doses, a 3-month supply. The concentrations of the ingredients differ between dog and cat products, and this product cannot be used on cats.



