Senergy Topical Solution for Cats, 5.1-15 lbs, (Blue Box), 3 Doses (3-mos. supply)

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About This Item

Details

Senergy is a convenient topical parasiticide for your kitty companion that is designed to help prevent heartworm disease while killing adult fleas and deterring flea eggs from hatching for one month. It may also be used to aid in the treatment and control of ear mite infestations as well as roundworm and hookworm infections.We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.

Ingredients

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FAQ

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4.6
Rated 4.6 out of 5 stars
233 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

88% Positive

Effectiveness

87% Positive

Ingredients

85% Positive

Long-Term Benefits

86% Positive

95 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 3 out of 5 stars
By Suzanne on Jan 3, 2026

I didn’t read carefully

Thought it was flea and tick protection but it doesn’t work on ticks. I was pulling off a tick every day from my outdoor cat.

Thought it was flea and tick protection but it doesn’t work on ticks. I was pulling off a tick every day from my outdoor cat.

Rated 5 out of 5 stars
By Diana on Nov 6, 2025

Ease of use

I was using a different flea product that had the same exact active ingredient as Senergy, but the other product made his hair fall out in the application spot

I was using a different flea product that had the same exact active ingredient as Senergy, but the other product made his hair fall out in the application spot. Senergy works just as well with no side effects.

Rated 1 out of 5 stars
By Mac on Aug 7, 2025

I think fleas are laughing at this stuff as they do cartwheels across my floor!

I was using Revolution Plus and my cat had zero fleas. I decided to try and save some money and try Senergy. I purchased the 3 pack. HUGE mistake! My cat is covered

I was using Revolution Plus and my cat had zero fleas. I decided to try and save some money and try Senergy. I purchased the 3 pack. HUGE mistake! My cat is covered in fleas and my ankles are bit up. I'm flea combing her 2x/day. Each time, I get anywhere from 1 flea to as much as 14. One day, between the 2 combings, I found 22 fleas on her in 1 day. I am vacuuming the whole house every day, which is very tiring. I can't use any chemicals in my home, so I'm trying natural flea sprays that are not working. I have to wait until the 30 days are up to switch her back to Revolution Plus. My poor cat is having allergic reactions to the fleas and scratching. My ankles are itching, too. We are suffering and miserable. Spend the extra money and get something that works. I do not recommend this product and I will NEVER buy it again.

Rated 5 out of 5 stars
By Robin on Sep 13, 2025

Order delivered quickly

I like the auto ship option; it means I won't forget to order a product that I need every 3 months. Chewy gave me a chance to change or delete the order before

I like the auto ship option; it means I won't forget to order a product that I need every 3 months. Chewy gave me a chance to change or delete the order before it was sent. Thank you. Of course, I didn't need it deleted!

Rated 3 out of 5 stars
By Natarsha on Nov 14, 2025

Not sure if I used it right

She tried to lick it off, I’m not sure if I put it on right because she’s still scratching for fleas

She tried to lick it off, I’m not sure if I put it on right because she’s still scratching for fleas

Rated 5 out of 5 stars
By janell on Dec 14, 2025

Similar to Revolution but cheaper

This has same ingredient as revolution but this is less expensive.

This has same ingredient as revolution but this is less expensive.

Rated 5 out of 5 stars
By Lotoya on Oct 4, 2025

My cats hate it

I go on a chase with them to apply it, some clawing and attitudes. It works well and I like it but they don't.

I go on a chase with them to apply it, some clawing and attitudes. It works well and I like it but they don't.

Rated 5 out of 5 stars
By Lauri on Sep 3, 2025

Senergy

We are back in business with the Senergy working for Nellie again. Thank you again for all your help with this issue.

We are back in business with the Senergy working for Nellie again. Thank you again for all your help with this issue.

Rated 5 out of 5 stars
By Debbie on Nov 21, 2025

Great customer service

Less expensive than what I normally get. Works well

Less expensive than what I normally get. Works well

Rated 5 out of 5 stars
By Becky on Oct 1, 2025

Instant relief

Omg, my cats were SUFFERING with ear mites and they're so happy now!!

Omg, my cats were SUFFERING with ear mites and they're so happy now!!