This product never gets my loved cat sick. It's cost-effective as well as effective against those pesty fleas.
Verified purchase: Yes | Condition: New
I originally purchased these drops from Tractor Supply and they worked for the first 3 months (3 applicaitons). Then, after running out, I purchased these same drops from ebay since it was a little cheaper, but they didn't work like the first 3 did. I had the same issue with the PetArmor and PetAction drops not working after the first few applications, but I finally found that the Advantage II drops work consistently for my dog and cat.
Verified purchase: Yes | Condition: New
After four to five months of using Sentry with little or not reduction of fleas, I asked my vet. She told me that her practice has found that Sentry's ingredient (Fipronil) is no longer effective. Fleas have developed a resistance. While more expensive, I have found that Advantage II, which the vet recommended, is effective.
Verified purchase: Yes | Condition: New
Came super fast so that was great because my cats were getting attacked by fleas even me. As soon as i put it on i noticed my cats immediately stop scratching themselves. They do scratch here and there but time for a bath.
Verified purchase: Yes | Condition: New
Product worked for me for all of my cats. I had no issues but definitely had relief from the itching. I think we were fighting chewing lice!
Verified purchase: Yes | Condition: New
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