---
product_id: 69422520
title: "FirstAct Plus Flea Treatment for Dogs, Extra Large Dogs 89+ lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs"
brand: "tevrapet"
price: "$63"
currency: NZD
in_stock: true
reviews_count: 8
category: "Tevra Pet"
url: https://www.desertcart.nz/products/69422520-firstact-plus-flea-treatment-for-dogs-extra-large-dogs-89
store_origin: NZ
region: New Zealand
---

# Kills fleas & ticks within 24 hours Waterproof formula for lasting effect 3 monthly doses of continuous protection FirstAct Plus Flea Treatment for Dogs, Extra Large Dogs 89+ lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs

**Brand:** tevrapet
**Price:** $63
**Availability:** ✅ In Stock

## Summary

> 🐾 Protect your XL bestie like a pro—no fleas, no ticks, no compromises!

## Quick Answers

- **What is this?** FirstAct Plus Flea Treatment for Dogs, Extra Large Dogs 89+ lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs by tevrapet
- **How much does it cost?** $63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/69422520-firstact-plus-flea-treatment-for-dogs-extra-large-dogs-89)

## Best For

- tevrapet enthusiasts

## Why This Product

- Trusted tevrapet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Acting Formula:** Starts killing pests within 24 hours to keep your dog itch-free and happy.
- • **Break the Pest Cycle:** Kills flea eggs and larvae to stop infestations before they start—no more endless scratching.
- • **Quality You Can Trust:** Made in Germany with rigorous testing and backed by a satisfaction guarantee for peace of mind.
- • **Triple Shield Defense:** 3 monthly topical doses deliver nonstop flea & tick protection for your XL dog.
- • **Vet-Grade Ingredients:** Powered by Fipronil & (S)-methoprene—the same trusted actives as Frontline Plus, without the brand markup.

## Overview

FirstAct Plus Flea Treatment offers XL dogs (89+ lbs) a vet-quality, waterproof topical solution with 3 monthly doses. Using the same active ingredients as Frontline Plus, it kills fleas, ticks, eggs, and larvae within 24 hours, breaking the pest lifecycle and providing continuous protection. Manufactured in Germany and backed by a satisfaction guarantee, it delivers premium flea and tick control without the premium price.

## Description

desertcart.com : FirstAct Plus Flea Treatment for Dogs, Extra Large Dogs 89+ lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs : Pet Supplies

Review: Working good - No fleas or ticks on my dog. None greasy. Works great.
Review: Flea and Tick repellent - The product was simple to use. Open vial and apply to dogs back.

## Features

- 3 MONTHLY DOSES OF FLEA TREATMENT FOR DOGS: Each pack of TevraPet FirstAct Plus contains three (3) topical applicators of waterproof flea medicine for dogs that instantly begins to kill and control fleas and flea eggs, larvae, ticks, and chewing lice - and provides continuous protection for up to 30 days after each application
- VET QUALITY FORMULA, EASY TO USE: FirstAct Plus uses Fipronil and (S)-methoprene - the same safe and effective active ingredients as Frontline Plus for Dogs. This powerful formula starts to kill fleas and ticks within 24 hours. Simply apply the applicator to the skin on the back of your dog’s neck and the formula will migrate through the skin providing whole-body protection
- THE SAME ACTIVE INGREDIENTS AS FRONTLINE - FOR FAR LESS: It's worth repeating: Just like Frontline Plus, FirstAct Plus's powerful active ingredients REPEL and KILL fleas and ticks on contact and stop reinfestations. At TevraPet we firmly believe you shouldn't have to pay the "Brand tax" to protect your dog, and we are committed to providing affordable, veterinarian quality solutions without sacrificing an ounce of safety, effectiveness, or reliability
- BREAK THE FLEA LIFECYCLE - KICK THE ITCH: Unlike other flea and tick repellents that only temporarily suppress pest activity, FirstAct Plus for Dogs kills flea eggs and larvae to stop infestations dead in their tracks and breaking the flea and tick life cycle. With FirstAct Plus your dog spend his or her time enjoying life both indoors and outside - no more worrying about biting bugs
- QUALITY ASSURED, RESULTS GUARANTEED: Every dose of FirstAct Plus is produced at our facility in Germany to the exacting standards we demand for our own pets, and rigorously tested for quality and potency. Every single dose we sell is backed by the TevraPet guarantee - if you (or your dog!) are unsatisfied for any reason simply contact us for courteous assistance and a no-questions asked refund

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Active Ingredients | Fipronil |
| Brand | TevraPet |
| Customer Reviews | 4.0 out of 5 stars 866 Reviews |
| Item Form | Drops |
| Item Volume | 0.41 Fluid Ounces |
| Item Weight | 1.25 Ounces |
| Scent | Topical |

## Product Details

- **Active Ingredients:** Fipronil
- **Age Range (Description):** All Life Stages
- **Allergen Information:** Allergen-Free
- **Brand:** TevraPet
- **Dog Breed Size:** Giant
- **Item Form:** Drops
- **Item Volume:** 0.41 Fluid Ounces
- **Item Weight:** 1.25 Ounces
- **Scent:** Topical
- **UPC:** 190623000157

## Images

![FirstAct Plus Flea Treatment for Dogs, Extra Large Dogs 89+ lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs - Image 1](https://m.media-amazon.com/images/I/81kRZkt+GhL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Has anyone used this product in the Pacific Northwest and had any luck?**
A: Its awful, I put it on two of my dogs and they scrached and itched for months.  I was beginning to worry, but after 4 months they stopped.
Do not buy this product.

**Q: What do you recrecommend for heartworm prevention**
A: My Dr give the medication

**Q: fluralaner what product contains this?**
A: Please do not use this product. It does not work and it's poison for your pet, spoken from experience. I used it and was not happy, neither were my dogs. I currently bathe my dogs 1x per week with dawn dish soap, just lather and leave on for 3 min. Rinse and fleas are dead. No more fleas since starting this routine. I urge you to Google the dangers of these products to your animals since so many pet owners are not made aware. Best of luck .

**Q: “I put this on my dogs and cat last night and still itching like crazy. How long until it works??”**
A: I would recommend Capstar (nitenpyram is the active ingredient) to immediately get rid of fleas. They'll all die within in 24h and then the topical can then be used as a preventative. 

Also, my dog actually got fleas while on the TevraPet FirstAct Plus product. My vet told me that fleas in our area are resistant to Tevra and Frontline and recommended the Capstar and then using the Bayer Soresto flea collar, which lasts for 8 months. No more fleas at our house!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Working good
*by S***R on January 29, 2026*

No fleas or ticks on my dog. None greasy. Works great.

### ⭐⭐⭐⭐⭐ Flea and Tick repellent
*by K***N on August 15, 2022*

The product was simple to use. Open vial and apply to dogs back.

### ⭐⭐⭐⭐ Listen up folks...
*by J***H on July 15, 2023*

Listen up folks, this flea medication will not give you the results you are looking for, overnight. So please don't expect to see immediate results. If that is what ur looking for, maybe you should seek a vets treatment. Because this is above all, the best flea medication for rhe money! You really can't beat the price. This stuff takes a good Week to start completely keeping your furbaby flealess.. and I know we have fleas in the yard.. and there ARE NO FLEAS on my babydog! My Yogi Bear has flea dermatitis, and he chews, chews, and keeps on chewin til he's a giant scab. Fortunately I gave this medication another try for a longer period (about another week) and I'm SO GLAD I did! My boy is so much more calm and relaxed now that he's not infested with aggervating fleas! Whoohoooo! Shout out to the makers of this medicine!

## Frequently Bought Together

- FirstAct Plus Flea Treatment for Dogs, Extra Large Dogs 89+ lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs
- TevraPet FirstAct Plus Flea and Tick Topical for Cats over 1.5lbs, 3 Dose Waterproof Flea and Tick Control/Prevention for 3 Months
- FirstAct Plus Flea Treatment for Dogs, Small Dogs 6-22 lbs, 3 Doses, Same Active Ingredients as Frontline Plus Flea and Tick Prevention for Dogs

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-25*