Activyl Tick Plus vs. Seresto for Cats Comparison

Activyl Tick Plus

Learn More

all weights, 15" collar length

Learn More

Sentinel Flavor Tabs

Learn More

Kills Fleas

Repels Fleas

Kills Flea eggs and Larvae

Prevents Development

Kills Ticks

Repels Ticks

Kills and/or Repels Mosquitoes

Prevents Heartworm

Other Parasites Information

Controls adult hookworms and removes and controls adult roundworms & whipworms

Waterproof (shampooing once a week can reduce effectiveness)

N/A

Safe for pregnant or nursing Pets

How long does it take to work

Reapply every 30 days.

Begins to work Immediately, However, pre-existing flea populations may continue to develop and emerge.

Taste

Applied to skin

Beef Flavor

Active Ingredient(s)

Indoxacarb, Permethrin

Milbemycin Oxime/Lufenuron

RX Required

Dosage

Usage

Video

Coming soon

Vet Review

When the Activyl product line came out several years ago, it was touted as a totally novel new product on the market that would not have the problems of emerging flea resistance to products that has believed to been increasing in recent years with the old standby products in some cases. It supposedly works through a unique process of bioactivation using only the flea enzymes in activating the main ingredient, indoxacarb, in killing fleas. Along with the permethrin ingredient for tick coverage and control, it would seem like this would be a first line or excellent choice for those looking for a novel and comprehensive flea/tick product for their dogs. And while it is also effective in preventing flea eggs and larvae from developing as well, and can be highly effective in today's war against fleas and ticks, I have seen occasional problems with this product, as reported by clients. While its deeper penetration in the fatty oils of the skin may be a benefit, and while the product is not reported to be absorbed systemically, I have seen occasional and severe side effects reported by animal guardians. As with most other topical products in this venue, this particular product can occasionally cause irritation and itching at the site of application, which while usually only transient for a day or two, in some pets the itching and allergic reaction has been noted to intensify, necessitating anti-itch medications for relief. Some clients have also reported an odd odor from the application site for a while, as well as an oily film, which may persist for a few days. While many clients do report this product highly effective when other competitor products may have failed them recently, these occasional reactions are important to note, especially in a very sensitive or geriatric animal, and/or one with a chronic medical condition. On very rare occasions, clients have reported digestive side effects, as well as rare neurological weakness, stiffness or even spasms. While the vast majority of clients are satisfied with this product's performance and reliability, the decision on using this stronger, newer way of flea and tick control, should be made after careful consideration of patient history, as well as discussion with the local veterinarian. I give this product an overall rating of a 4, with an ease of use of a 5, with a mid-rating safety level of 3.

Sentinel is a wonderful combination of the heartworm prevention pill interceptor and the flea control product program both in this one pill. Many clients enjoy the convenience of having such broad acting internal and external parasites in one pill, without having to worry about giving two separate medicines. Lufenuron, which is the main flea control ingredient, stops the flea life cycle in its track at the egg and larval stage, thus being like a birth control pill for fleas who get on our pets. Given that the main problem of fleas is how rapidly they reproduce, this pill literally stops escalating growth of flea populations, before they can become established in our homes, where most of the flea life cycle occurs. The main disadvantage to this product is that it does not kill or repel adult fleas, so in situations with already established heavy infestations, it is best combined with a great topical product like advantage or front line or with the oral adulticide flea pill Capstar for maximal effect. The only other rare disadvantage I see is the slight increase in reactions when two products are combined into one like this, but fortunately this is not common in clinical practice. With milbemycin for prevention of heartworms and controlling and treating most common intestinal worms, I overall highly recommend this versatile product.

Our expert panel consists of licensed veterinarians and the knowledgeable staff of PetMed Express, Inc. d/b/a 1-800-PetMeds. Neither the Company nor any of its employees or consultants make any warranties, expressed or implied, or representations about the accuracy or completeness of the content or the content of any site or external sites. Likewise, no legal liability or responsibility is assumed for the accuracy or completeness of any information, or usefulness of products discussed. While every effort has been made to accurately represent the qualities and characteristics of each product, which for the most part were taken directly from the websites of the manufacturers, we are not responsible for any errors. The information presented is for educational purposes only and is intended to be a supplement to, and not a substitute for, the expertise and professional judgment of your veterinarian. The information is NOT to be used for diagnosis or treatment of your pet. You should always consult your own veterinarian for specific advice concerning the treatment of your pet. The information is not intended to cover all possible uses, directions, precautions, warnings, allergic reactions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for your pet. It is not a substitute for a veterinary exam, and it does not replace the need for services provided by your veterinarian. Note: Any trademarks are the property of their respective companies.