---
product_id: 117619757
title: "for Dogs Flea, Tick & Mosquito Treatment & Prevention for Medium Dogs (21 – 55 lbs) , 6 month supply"
brand: "vectra 3d"
price: "฿8783"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/117619757-for-dogs-flea-tick-and-mosquito-treatment-and-prevention-medium
store_origin: TH
region: Thailand
---

# Waterproof after 24 hours Kills fleas in 4 hours Repels & kills fleas, ticks & mosquitoes for Dogs Flea, Tick & Mosquito Treatment & Prevention for Medium Dogs (21 – 55 lbs) , 6 month supply

**Brand:** vectra 3d
**Price:** ฿8783
**Availability:** ✅ In Stock

## Summary

> 🐾 Shield your best friend with fast, fuss-free protection!

## Quick Answers

- **What is this?** for Dogs Flea, Tick & Mosquito Treatment & Prevention for Medium Dogs (21 – 55 lbs) , 6 month supply by vectra 3d
- **How much does it cost?** ฿8783 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/117619757-for-dogs-flea-tick-and-mosquito-treatment-and-prevention-medium)

## Best For

- vectra 3d enthusiasts

## Why This Product

- Trusted vectra 3d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Longevity:** Backed by 15 years of proven effectiveness, ensuring your medium dog stays protected month after month.
- • **Rapid Action Defense:** Starts reducing flea bites in just 5 minutes—because your dog deserves instant relief.
- • **All-in-One Protection:** Guards against fleas, ticks, mosquitoes, lice, mites, and biting flies—complete pest control in one easy step.
- • **Effortless Application:** Quick-drying, fragrance-free, and non-greasy topical treatment that fits seamlessly into your busy lifestyle.
- • **No Prescription Needed:** Convenient, vet-quality protection available without the hassle—because your dog’s health shouldn’t wait.

## Overview

Vectra 3D Medium Dog Monthly Treatment & Prevention offers a 6-month supply of vet-trusted, rapid-acting topical protection for medium dogs (21-55 lbs). It kills fleas within 4 hours, repels multiple pests including ticks and mosquitoes, is waterproof after 24 hours, and requires no prescription—making it the ultimate hassle-free defense for your dog’s comfort and health.

## Description

for Dogs Flea, Tick & Mosquito Treatment & Prevention for Medium Dogs (21 – 55 lbs) , 6 month supply

## Features

- Trusted for 15 years, Vectra 3D Medium Dog Monthly Treatment & Prevention protects dogs 21 to 55 lbs. and 8 weeks of age or older from fleas, ticks, mosquitoes, lice, mites (excluding mange mites), and biting and sand flies
- Begins reducing flea feeding (bites) in 5 minutes. Kills fleas in 4 hours.
- Repels and kills fleas, ticks and mosquitoes, no bite required
- Easy-to-apply topical treatment that is quick drying, fragrance-free, non-greasy and waterproof after 24 hours
- No prescription required

## Product Details

- **Brand:** VECTRA 3D
- **Item Form:** Topical Drops
- **Scent:** Unscented
- **Item Weight:** 0.05 Ounces
- **Active Ingredients:** Dinotefuran
- **Item Volume:** 0.15 Fluid Ounces
- **Allergen Information:** Abalone Free
- **Dog Breed Size:** Medium
- **Age Range (Description):** 8 Weeks or Older
- **UPC:** 851321007090

## Images

![for Dogs Flea, Tick & Mosquito Treatment & Prevention for Medium Dogs (21 – 55 lbs) , 6 month supply - Image 1](https://m.media-amazon.com/images/I/71IIIaFBGgL.jpg)

## Available Options

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

## Questions & Answers

**Q: does this work against biting flies?**
A: We had used for several years and it worked.  But last year had to take Georgia to vet for scratching.  She had fleas so this did not work.  Bad that I had ordered early to have and seller would not take the new package back. We ended with $150 bill and our vet put Georgia on Bravecto pills.  Just make sure if order 6 doses before you need since company will not take them back even though I had receipt of vet bill.

**Q: My girl back andd forth between 53-58#, which one should I get?**
A: If it was my dog I would get the 56# and up size if my dog’s weight tended more often  toward 58#.  The difference is in the amount of product to put on the dog.   The bigger the dog, the more product needed.   I would also consider whether my dog is flea allergic, and if the area has a lot of fleas or ticks.

**Q: What is expiration date?**
A: This product is a US EPA registered product, it does not have an expiration date

## Frequently Bought Together

- Vectra 3D for Dogs Flea, Tick & Mosquito Treatment & Prevention for Medium Dogs (21 – 55 lbs) , 6 month supply
- Vectra 3D for Dogs Flea, Tick & Mosquito Treatment & Prevention for Large Dogs (56 to 95 lbs) , 6 month supply

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**Shop now:** [https://www.desertcart.co.th/products/117619757-for-dogs-flea-tick-and-mosquito-treatment-and-prevention-medium](https://www.desertcart.co.th/products/117619757-for-dogs-flea-tick-and-mosquito-treatment-and-prevention-medium)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-07*