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Sergeant's Pronyl OTC MAX for Cats and Dogs Review

Sergeant’s Pronyl OTC MAX for Cats and Dogs Review


Are you looking for an effective, middle-of-the-road flea and tick treatment?

If so, you’re in good company. Most pet owners battle fleas at one point or another and most of us would rather avoid them than try to get rid of them!

The problem is that monthly flea treatments can get expensive and many of them don’t even work, so it’s just hard-earned money wasted.

Relax now, because we’re here to help you out. Today we’re going to take a look at Sergeant’s Pronyl OTC MAX for cats, dogs, kittens and puppies in order to decide if the product is safe and effective. We’ll take a look at the ingredients and see what real-life users have to say about it so that you can make an educated choice regarding your flea control program.

Company Claims

The claims for this product are fairly simple. They claim that their product kills the following in as little as an hour:

  • Fleas
  • Ticks
  • Lice
  • Larvae
  • Flea eggs

They also claim that the product is waterproof and controls reinfestations. It supposedly works for 30 days.

The treatments comes in a 3-month supply packaged in individual doses for small and medium dogs and for cats

Active Ingredients

  • Fipronil
  • Methoprene

How it Works

Both of these are the same ingredients as the spot ons that you get from the vet, including Frontline. Fipronil is a neurotoxin that blocks signals to the insect’s brain and causes death by hyperexcitation It’s also one of the more durable products because it’s supposedly less water-soluble than other 30-day products.

Methoprene is a growth inhibitor that keeps the larvae and eggs from maturing so that they can’t bite and breed.

What Are Users Saying?

The majority of people who use this products (both cat and dog owners) are happy with it. There are people who report that it doesn’t work but they are the minority. There were also a handful of people who reported that it works wonderfully but caused their dogs to itch. Nobody reported this for cats that I could find.

The price is extremely competitive at $8 or less per dose.

Usage Information

Apply between the shoulder blades of your dog or cat and allow to dry for 24 hours before bathing. Reapply every 4 weeks.

Product Warnings and Side Effects

Your pet may experience irritation at the site of application If this gets bad, wash the area with warm, soapy water. If it doesn’t get better or worsens, contact your vet. You may also notice a white, greasy or powdery substance at the application site the day after you put it on. Just wash off with a sponge.


Pronyl OTC MAX seems to be an effective product that will cost less out of pocket than Frontline or other products. The ingredients are good and there are very few negative reports. Overall, we feel comfortable recommending this product for use on healthy dogs, cats, puppies and kittens.

Click here to find even better deals on Pronyl Max OTC.

If you’ve used Pronyl Max OTC on your dog or cat for fleas, please let us know how it worked for you in the comments section below.

7 Responses to “Sergeant’s Pronyl OTC MAX for Cats and Dogs Review”
  1. Kittenfuud says:

    Our cat is strictly an indoor cat, so we were surprised to see fleas at all, much less AFTER summer! Bought some Pronyl OTC Max around 3wks ago. They are dying down, but there is NO WAY they are gone. We still see them on his face and he is still snatching, altho not AS much. I am going in the next 2 wks the stuff will take hold and he’ll be a happy kitty again. Jury’s still out on this product-and the whys persist about the timing of this indoor-boy’s infestation! Thinking of trying the flea collar if this doesn’t stop-waiting the full 30 days to either switch or continue, of course.

  2. Theresa says:

    The Pronyl worked for my dog. I am looking to buy it again.

  3. Shannon says:

    We have been battling fleas all summer. We have tried flea collars, Frontlin drops, and our dogs have had more baths in the last 3 months than they have had in a year. Applied Pronyl last week and so far No Fleas! This stuff works great. Happy Furr Babies!

  4. Kim says:

    I’ve used Pronyl OTC Plus on my dog and cat with great results as far as fleas go. However, Hello, Dolly does have severe itching that I haven’t been able to resolve. Never even thought it might be from the Pronyl. And it still may not be. I just don’t know other than there is no flea activity on her so it isn’t fleas. But my problem is thathat she has grown immensely and is now 81.4 pounds and I haven’t been able to find Pronyl for her size.

    • M says:


      You should be able to order it and have it delivered to your door. Hope that helps..

  5. Lesli says:


  6. Margaret says:

    I went on vacation with my dashund. He got fleas and lice. I found pronyl at the local dollar general. I put it on him and his itching and scratching decreased within an hour and by morning the fleas and lice were gone.
    I will use it on him again. Bought some for my cats also.

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