Trifexis vs Seresto

Your family - both fur and human - deserve the very best treatment. With that in mind, we have created a comparison chart between two popular parasite treatment options, Trifexis Chewable Tablets and Seresto. Armed with this and the information below, we believe you'll be able to make an informed choice to protect your pet.

What are the differences between Trifexis and Seresto

The most notable difference between these products is that Seresto is a collar, designed to fit comfortably around your pet’s neck. Trifexis is a chewable tablet given to your pet. Seresto enables you to only change out the collar as infrequently as every 8 months, while Trifexis is given once a month. Puppies must be at least 7 weeks old to apply the collar, while using Trifexis requires them to be at least 8 weeks and 5 pounds.

Trifexis contains Spinosad and Milbemycin Oxime, and it begins to kill fleas in as little as 30 minutes. It eliminates all fleas within 4 hours. Seresto's collar contains the active ingredients of Flumethrin and Imidacloprid, which are slowly released in low concentrations to kill fleas within 24 hours and ticks within 6 hours. Trifexis has the added benefit of killing off intestinal parasites such as hookworm, and roundworm, and it prevents heartworm. Meanwhile, the Seresto collar prevents fleas and ticks from latching on. This gives your pet a shield against pesky critters. Seresto also treats chewing lice and sarcoptic mange.

Both products are safe for use in dogs when used according to label directions. However, unlike Seresto, Trifexis has not yet been evaluated for use in breeding, pregnant, or lactating dogs. Nexgard is not available for cats. However, Seresto makes a collar for cats, and its benefits are comparable to the canine counterpart.

Trifexis is only available with a prescription from your veterinarian. Seresto is available over-the-counter. Your vet should be able to answer any questions related to side effects, precautions, or special care for your dog.

Final Thoughts on Trifexis vs Seresto

The cost associated with both products is comparable to other prescription and over-the-counter medications. Your veterinarian might recommend that you administer both to your pet for broad-spectrum protection. Some pet owners and their veterinarians may decide to switch over to Seresto to protect breeding, pregnant, and lactating dogs.

For protection against internal parasites, Trifexis is a great choice. If sarcoptic mange, chewing lice, and ticks are the primary concern, Seresto might be the best option.

If you still have questions on which oral flea and tick treatment is best for your furry friend, our pharmacists are standing by to offer pet parent consulting.

Feature Trifexis Seresto
Kills Fleas Yes Yes
Repels Fleas No Yes
Kills Flea Eggs and Larvae Yes Yes
Kills Ticks No Yes
Repels Ticks No Yes
Repels Mosquitoes No No
Prevents Heartworm Yes No
Other Parasites Roundworm, hookworm, and whipworm Chewing Lice and Sarcoptic Mange
Waterproof Yes since taken orally Yes
How Long to work Kills 100% of biting fleas in 4 hours Kills fleas in 24 hours and repels or kills re-infesting ticks within 6 hours
Taste Beef Flavored N/A
Active Ingredient Spinosad and Milbemycin Oxime Flumethrin and Imidacloprid
RX Required Yes No
Application Type Chewable Tablet Collar
Dosing 1 tablet per month 1 collar lasts up to 8 months
Age Puppies 8 weeks and older and weigh more than 5 lbs. Dogs 7 weeks and older
Manufacturer Elanco Animal Health Bayer Animal Health
Safety Not yet evaluated for use of in breeding, pregnant, or lactating dogs. Breeding, pregnant, and lactating dogs may use.