TevraPet FirstAct Plus Flea & Tick Treatment for Dogs, 6 - 22lbs, 3 Doses (3-mos. supply)

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About This Item

Details

  • FirstAct Plus is formulated with fipronil and (S)-methoprene for comprehensive flea and tick protection.
  • It works to kill existing flea and ticks, provide protection from all stages of ticks, and prevent flea eggs and larvae from developing.
  • The waterproof topical drops kill fleas and ticks on contact before your dog has been bitten.
  • FirstAct Plus for Dogs prevents the development of flea eggs and larvae, helping to stop future infestations before they start.
  • Made in the USA using high quality standards.

Ingredients

Instructions

Learn More About TevraPet From Our Team of Experts

Questions & Answers

5 Customer Questions


Is this a preventative or to use when dogs already have fleas?

Answer by ChewyMay 07, 2023
This flea and tick treatment can be used both as a preventative and to treat existing fleas and ticks.

What are the percentages of each the Fipronil and the (S)-Methoprene?

Answer by ChewyMar 03, 2022
The active ingredients are Fipronil 9.8% and (s)-Methoprene 8.8%.

Does this work only if the flea goes on the area where the liquid was applied?

Answer by ChewyAug 23, 2022
This treatment works to kill fleas and ticks all over your dog.

Is this safe to use on a puppy that is 8lbs. 9 weeks old?

Answer by ChewyMar 13, 2021
This treatment is designed for use only on dogs and puppies weighing 6-22 pounds and 8 weeks of age or older.

4.0
Rated 4 out of 5 stars
793 Ratings

Customers Mention

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

Ease of Use

70% Positive

Effectiveness

69% Positive

Ingredients

72% Positive

Long-Term Benefits

71% Positive

308 Customer Reviews



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

Rated 5 out of 5 stars
By Sam on Nov 13, 2025

Found something that actually worked

I’ve had problems finding a good flea treatment and while my dog still had some flea (she does spend a lot of time outside with us) it has been far better than most

I’ve had problems finding a good flea treatment and while my dog still had some flea (she does spend a lot of time outside with us) it has been far better than most other very expensive products. We do brush her every day along with a flea comb and she’s been almost flea free all summer. I would re this product m.


Rated 4 out of 5 stars
By Mary on Oct 12, 2025

fleas I hate

This needs to be understood that not only is it for DOG use ONLY but if your dog is friends with your cat(s) the dog needs quaratined for 24 hours. Very strongly

This needs to be understood that not only is it for DOG use ONLY but if your dog is friends with your cat(s) the dog needs quaratined for 24 hours. Very strongly stated in directions in package. Not so good for pet families like ours. Probably works great to kill those buggers, however.


Rated 5 out of 5 stars
By Leo on Jan 10, 2026

Medication for a month we'll see

So far it's working hasn't been a month yet The medication hopefully it lasts for a month

So far it's working hasn't been a month yet The medication hopefully it lasts for a month


Rated 5 out of 5 stars
By Cecilia on Nov 23, 2025

Value was on point

With how expensive everything is, I still don’t want my dogs getting sick. I found a reasonably priced flea and tick I can safely use on my dogs.

With how expensive everything is, I still don’t want my dogs getting sick. I found a reasonably priced flea and tick I can safely use on my dogs.


Rated 5 out of 5 stars
By Charlene on Nov 29, 2025

Great Product!

After treating my small dog for the fleas he had, within one day he stopped scratching and I haven't seen fleas again!

After treating my small dog for the fleas he had, within one day he stopped scratching and I haven't seen fleas again!


Rated 1 out of 5 stars
By Tabitha on Oct 17, 2025

Didn't work

This flea and tick repellent simply doesn't work. I gave 3 of the 6 away. And they too said it didn't work for a bad case of fleas. And I encountered ticks with

This flea and tick repellent simply doesn't work. I gave 3 of the 6 away. And they too said it didn't work for a bad case of fleas. And I encountered ticks with this product.


Rated 2 out of 5 stars
By Teresa on Nov 3, 2025

Not working

Our dogs are still getting fleas, not as bad but still getting them. As soon as they go outside they bring a few in and I have to get them off.

Our dogs are still getting fleas, not as bad but still getting them. As soon as they go outside they bring a few in and I have to get them off.


Rated 1 out of 5 stars
By Diane on Oct 10, 2025

Did not work

Several days after applying this flea treatment I saw fleas on my dog. I had to take her to the vet for a flea bath and purchased a different flea treatment.

Several days after applying this flea treatment I saw fleas on my dog. I had to take her to the vet for a flea bath and purchased a different flea treatment.


Rated 1 out of 5 stars
By Sherri on Dec 8, 2025

Not working

Both furbabies still itching and live fleas on them, even after a second dose.

Both furbabies still itching and live fleas on them, even after a second dose.


Rated 5 out of 5 stars
By Edi on Nov 27, 2025

This product has proven to be safe and easily applied.

The ease of obtaining it through Chewy is always reassuring and the price is perfect!

The ease of obtaining it through Chewy is always reassuring and the price is perfect!