Updated:04 November 2026
Rank 1-16 of the best Rat Poisons
Our recommendation Price Customer rating
1. Comparison winner
Roshield Mouse & Rat Bait Sachet Kit (4 x 150g)
Roshield Mouse & Rat Bait Sachet Kit (4 x 150g)
Available immediately
free shipping
  • approved rodenticide poison effective for controlling mice and rats
  • highly palatable with high energy content, preferred by rodents
  • can be used indoors and outdoors, resistant to different weather conditions
Our rating
9,9
very good
2. Bestseller
Pest Expert Rat Killer 1.5kg
Pest Expert Rat Killer 1.5kg
Available immediately
free shipping
  • maximum legal strength single-feed poison: effective concentration of brodifacoum 0.0029%
  • high palatability with wholewheat grain formula for assured uptake
  • suitable for use indoors and around buildings, including sheds, lofts, kitchens, and business premises
Our rating
9,9
very good
3. Best value
ROSHIELD 700g Rat & Mouse Poison Blocks
ROSHIELD 700g Rat & Mouse Poison Blocks
Available immediately
free shipping
  • high poison strength with bromadiolone 0.0025% for effective control of rats and mice
  • formulated for excellent palatability with culinary grade wheat flour and other food-grade materials
  • weather resistant and suitable for indoor and outdoor use, tolerating humidity and damp conditions
Our rating
9,9
very good
Elixir Gardens Rodex Rat Poison 1kg
Elixir Gardens Rodex Rat Poison 1kg
Available immediately
free shipping
  • contains anticoagulant for effective rodent control
  • includes red dye to indicate rodent consumption
  • designed for use in varied weather conditions
Our rating
9,8
very good
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks 1.5 kg
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks 1.5 kg
Available immediately
free shipping
  • up to six times stronger than other rodenticides available in the UK with Brodifacoum concentration at 0.0025%
  • highly palatable to rodents with a blend of food-grade ingredients and design that encourages gnawing
  • formulated to withstand extreme weather conditions, suitable for outdoor baiting
Our rating
9,8
very good
Pest Expert Formula 'B+' Rat Poison Grain Bait 1kg
Pest Expert Formula 'B+' Rat Poison Grain Bait 1kg
Available immediately
free shipping
  • up to six times stronger than other rodenticides with brodifacoum 0.0029%
  • made from wholewheat grain for high palatability to rats and mice
  • effective in various weather conditions, suitable for indoor and outdoor use
Our rating
9,8
very good
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks, 600 g (2 × 300 g)
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks, 600 g (2 × 300 g)
Available immediately
free shipping
  • up to six times stronger than other poisons on the UK market
  • highly palatable with a unique blend of food-grade ingredients
  • weatherproof and suitable for outdoor use
Our rating
9,6
very good
Pest Expert Formula B+ Rat & Mouse Killer, 900g (15 x 60g), Brodifacoum
Pest Expert Formula B+ Rat & Mouse Killer, 900g (15 x 60g), Brodifacoum
Available immediately
free shipping
  • contains brodifacoum at 0.0029% for maximum legal poison strength
  • formulated without wax using wholewheat grain for high palatability
  • designed for resistance in various weather conditions
Our rating
9,6
very good
Pest Expert Rat/Mouse Killer Bait Blocks with Bait Box
Pest Expert Rat/Mouse Killer Bait Blocks with Bait Box
Available immediately
free shipping
  • contains a high concentration of brodifacoum for fast and effective single-feed action
  • highly palatable formulation to increase bait uptake
  • specially formulated to resist extreme weather conditions making it suitable for indoor and outdoor use
Our rating
9,5
very good
Deadfast Mouse and Rat Killer Plus, Green
Deadfast Mouse and Rat Killer Plus, Green
Available immediately
free shipping
  • contains an active ingredient effective against mice and rats
  • formulated to ensure rodents consume a lethal dose in one feeding
  • suitable for indoor and outdoor use
Our rating
9,4
good
Rat & Mouse Bait Blocks with Brodifacoum, 300g
Rat & Mouse Bait Blocks with Brodifacoum, 300g
Available immediately
free shipping
  • contains 0.0025% brodifacoum, providing maximum strength against rodents
  • bait is highly attractive, designed to lure rats and mice
  • moisture-resistant blocks suitable for all weather conditions, both indoors and outdoors
Our rating
9,4
good
ROSHIELD Rat/Mouse Poison Blocks 300g
ROSHIELD Rat/Mouse Poison Blocks 300g
Available immediately
free shipping
  • highly palatable poison control bait for effective eradication of rats and mice
  • suitable for all weather conditions, including indoor and outdoor use
  • use within tamper-resistant bait stations
Our rating
9,1
good
Pest Expert Formula B+ Rat Bait Killer 800g
Pest Expert Formula B+ Rat Bait Killer 800g
Available immediately
free shipping
  • contains brodifacoum at 0.0029% for effective rodent control
  • formulated with high-quality wholewheat grain for palatability
  • designed for use indoors and around buildings
Our rating
9,0
good
The Big Cheese All-Weather Rodent Blocks, 30 x 10g
The Big Cheese All-Weather Rodent Blocks, 30 x 10g
Available immediately
free shipping
  • contains difenacoum for rodent control
  • moisture-resistant bait retains effectiveness in wet conditions
  • suitable for indoor home use or outdoor use around buildings
Our rating
9,0
good
RatKil Rat Poison 25g Sachets
RatKil Rat Poison 25g Sachets
Available immediately
free shipping
  • delivers a lethal dose of poison in a single feeding
  • contains cereals highly attractive to rodents
  • suitable for use both indoors and outdoors
Our rating
8,9
good
CritterKill Rat & Mouse Poison Blocks 300g
CritterKill Rat & Mouse Poison Blocks 300g
Available immediately
free shipping
  • contain 0.0025% of industrial strength difenacoum for effective elimination of resistant rats and mice
  • suitable for use both indoors and outdoors
  • designed to withstand varying weather conditions
Our rating
8,6
good

Similar Rat Poison comparisons

Rat Poisons buying guide: How to choose the right product from the above Rat Poisons test or comparison

Understanding Rat Poison: What You Need to Know

What is Rat Poison?

Rat poison is a chemical substance designed to eliminate rats and other rodent pests. It typically comes in various forms, from pellets to blocks, and works by targeting the rodent’s bloodstream or digestive system.

Why Use Rat Poison?

In urban settings, rats can pose significant health risks by spreading diseases and contaminating food supplies. Using rat poison can be an effective method to manage these populations, especially when other methods, like traps, may not provide complete control.

Understanding the Ingredients

Rat poisons contain various active ingredients, including anticoagulants that cause bleeding in rats, and neurotoxins that disrupt normal bodily functions. It’s crucial to understand these chemicals to make informed decisions about their use.

Types of Rat Poison: Choosing the Right Solution for Your Needs

Anticoagulant Rodenticides

This type of poison works by preventing the blood from clotting. The rats may not show immediate symptoms, giving you more time to eliminate the population before they discover the bait. Brands usually require multiple feedings before the rats consume a lethal dose.

Non-anticoagulant Rodenticides

These poisons act faster than anticoagulants and may lead to death within hours. However, they can pose a higher risk to pets and non-target animals. Always consider the environment where you plan to apply such poisons.

Bait Stations vs. Loose Bait

Bait stations protect the poison from moisture and non-target animals, while loose bait is easier to deploy in places where rats are active. Depending on where your infestation is occurring, one may be more suitable than the other.

How to Apply Rat Poison Safely and Effectively

Read and Follow Instructions

Understanding the manufacturer’s instructions is crucial for effective application. Each product will have specific guidelines regarding dosage and placement, ensuring that the poison works as intended.

Choose the Right Location

Apply rat poison in areas where you’ve seen signs of rat activity, such as droppings or gnaw marks. Avoid placing the poison near children, pets, or food sources to minimize risks.

Wear Protective Gear

When handling rat poison, using gloves and a mask is advisable to protect yourself from accidental exposure. This way, you can ensure both your safety and the effectiveness of the application process.

Tips for Preventing Future Infestations

Seal Entry Points

Rats can enter through surprisingly small openings, so inspecting your home for gaps and cracks and sealing them can dramatically reduce the chance of new infestations.

Maintain Cleanliness

Keeping your living space tidy by clearing out food waste and clutter can deter rats from making your home their own. Regular cleaning can go a long way in keeping pests at bay.

Consider Natural Deterrents

Using natural deterrents like peppermint oil or ultrasonic repellents can complement your efforts in preventing future invasions, creating an uninviting environment for rats.

Where to Buy Rat Poison: Finding Reliable Retailers

Online Retailers

Many reputable online retailers offer a wide variety of rat poisons. Before purchasing, reading customer reviews can help you ensure that you’re buying a product that is both effective and safe.

Local Hardware Stores

Local hardware or gardening stores often carry a selection of rat poisons. Speaking to knowledgeable staff can also provide insights into the best solution for your specific needs.

Pest Control Specialists

If you are unsure about which type of rat poison to choose, consulting with pest control specialists can be extremely beneficial. They can recommend effective products based on their experience and expertise.

Table of contents
  1. Understanding Rat Poison: What You Need to Know
  2. Types of Rat Poison: Choosing the Right Solution for Your Needs
  3. How to Apply Rat Poison Safely and Effectively
  4. Tips for Preventing Future Infestations
  5. Where to Buy Rat Poison: Finding Reliable Retailers

Overview

1. Comparison winner
Roshield Mouse & Rat Bait Sachet Kit (4 x 150g)
Our rating
9,9
very good
Roshield Mouse & Rat Bait Sachet Kit (4 x 150g)Available immediately
2. Bestseller
Pest Expert Rat Killer 1.5kg
Our rating
9,9
very good
Pest Expert Rat Killer 1.5kgAvailable immediately
3. Best value
ROSHIELD 700g Rat & Mouse Poison Blocks
Our rating
9,9
very good
ROSHIELD 700g Rat & Mouse Poison BlocksAvailable immediately
Elixir Gardens Rodex Rat Poison 1kg
Our rating
9,8
very good
Elixir Gardens Rodex Rat Poison 1kgAvailable immediately
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks 1.5 kg
Our rating
9,8
very good
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks 1.5 kgAvailable immediately
Pest Expert Formula 'B+' Rat Poison Grain Bait 1kg
Our rating
9,8
very good
Pest Expert Formula 'B+' Rat Poison Grain Bait 1kgAvailable immediately
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks, 600 g (2 × 300 g)
Our rating
9,6
very good
Pest Expert Formula B+ Rat and Mouse Killer Bait Blocks, 600 g (2 × 300 g)Available immediately
Pest Expert Formula B+ Rat & Mouse Killer, 900g (15 x 60g), Brodifacoum
Our rating
9,6
very good
Pest Expert Formula B+ Rat & Mouse Killer, 900g (15 x 60g), BrodifacoumAvailable immediately
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