Rats cause humans to lose millions of dollars due to the massive destruction their damaging teeth bring. This is why controlling their number is a must to prevent their spread,  which could translate to further destruction of properties.

Rat poisons are among the most effective remedy that you can use to achieve this. However, the results would depend on the quality of the poison that you will use.

To help you prevent this infestation of rats, our team of pest control experts has chosen five excellent rat poisons for you to choose from. After a series of comprehensive observations and tests, we have proven how effective and reliable they are. To further guide you in this review, our experts personally compared, graded, and ranked the items.

After spotting the best choice for you, be sure to click the buttons below to see their best deals on Amazon! With that, here are five of the best options that we rounded up especially for you.

Best Rat Poisons Comparison & Rating

Rat Poisons

Features

JT Eaton 166004 709-PN Bait Block Rodenticide Anticoagulant Bait, Peanut Butter Flavor, for Mice and Rats (9 lb Pail of 144), Green
  • 144 blocks
  • effective anticoagulant
  • 0.005% of the active ingredient Diphacinone
Neogen Ramik Fish Flavored Weather Resistant Rodenticide Mini Bars, 4 lb. Pail
  • 2-Diphenylacetyl-1, 3-Indandione
  • fish flavor
  • wet or damp areas
NEOGEN RODENTICIDE 40-Pack Havoc Mouse and Rat Killer, 50gm
  • packed in tightly sealed packets
  • no need to open the packets
  • strong anticoagulant property
Farnam Rodentex Multi-Feed Bars, 4 lbs (4, 16 oz bars)
  • four 16-ounce bars
  • resistant to moisture and molds
  • potent anticoagulant properties
Fasttrac Blox, Fastrac Rodenticide 4lb pail
  • stops rodents from further feeding after consuming lethal dose
  •  resistant to weather conditions
  • 24-hour effect

1. JT Eaton 166004 709-PN Bait Block Rodenticide

JT Eaton 166004 709-PN Bait Block Rodenticide Anticoagulant Bait, Peanut Butter Flavor, for Mice and Rats (9 lb Pail of 144), Green
Specifications:
97% Overall

Dimensions

11 x 11 x 10 inches

Weight

9.5 pounds

Unit

Blocks

Quantity

144 pieces

99%
potency
96%
efficacy speed
95%
ease of use
97%
value for money
Pros:
  • Comes with a special peanut butter flavor.
  • Highly effective anticoagulant for killing rats.
  • Features the 0.005% of the active ingredient Diphacinone.
  • Perfect for eliminating both big and small rodents.
  • Comes in a tamper-evident and resealable pail.
  • Provides 144 blocks of potent rat poison.
  • The poison comes in one-ounce blocks.
Cons:
  • The blocks tend to attract ants.
  • Rats become more active after spreading the poison, but only for a short period.
Final Take:

When it comes to killing rats and mice, this is one of the best products there is. The rodents simply can’t resist the blocks of poison, which will slowly destroy them from the inside out. Once you start setting out blocks in strategic places, you will only need to wait for the results. This is thanks to the presence of the active ingredient Diphacinone, which is a potent anticoagulant. The scent of the poison covers this chemical up quite well while the flavor is irresistible to the rats.

2. Neogen Ramik Fish Flavored Weather Resistant Rodenticide

Neogen Ramik Fish Flavored Weather Resistant Rodenticide Mini Bars, 4 lb. Pail
Specifications:
95% Overall

Dimensions

1.25 x 2 x 4.13 inches

Weight

4 pounds

Unit

Mini-bars

Quantity

64 pieces

95%
potency
94%
efficacy speed
96%
ease of use
93%
value for money
Pros:
  • Kills rats and mice in all kinds of weather.
  • This can be used both indoors and outdoors.
  • Comes in manageable mini-bar portions.
  • Features 2-Diphenylacetyl-1, 3-Indandione.
  • Attracts rodents with the fish flavor.
  • Perfect for wet or damp areas.
Cons:
  • Bigger rats take longer to kill, but smaller mice die with the first dose.
Final Take:

Using this rat poison pretty much guarantees that the rats and mice in your house will die. With the smaller variety of rodents, you will most likely succeed with the first dose. With the bigger species, you will need a considerable level of exposure to guarantee death. The good news is that this product is irresistible to pests. This means that they will be eliminated and it’s just a matter of time.

3. NEOGEN RODENTICIDE

NEOGEN RODENTICIDE 40-Pack Havoc Mouse and Rat Killer, 50gm
Specifications:
93% Overall

Dimensions

12 x 12 x 14 inches

Weight

10 pounds

Unit

Packs

Quantity

40 pieces

92%
potency
93%
efficacy speed
95%
ease of use
92%
value for money
Pros:
  • Perfect for eliminating Norway rats, roof rats, and house mice.
  • Can be spread around homes and industrial, commercial, agricultural, and public buildings.
  • Capable of killing mice in a single night.
  • The poison is packed in tightly sealed packets.
  • No need to open the packets since the rats will simply chew through them.
  • Great for any kind of weather outdoors.
  • Features a strong anticoagulant property.
Cons:
  • The packets of the poison can be dragged by the rats around the house.
  • Only available in buckets instead of individual packets.
Final Take:

This is one of the most convenient rat poisons available in the market. You don’t even need to touch or be exposed to the poison directly. Just place the packets in the right locations and the rats will do the rest. The effects are quite fast, as well, with rats and mice seeing a significant reduction in a week or less. The packets protect the poison even during bad weather, as well. Once the rodents have ingested the poison, the anticoagulant will guarantee their deaths.

4. Farnam Rodentex

Farnam Rodentex Multi-Feed Bars, 4 lbs (4, 16 oz bars)
Specifications:
92% Overall

Dimensions

1 x 1 x 1 inches

Weight

4 pounds

Unit

Bars

Quantity

4 pieces

91%
potency
90%
efficacy speed
92%
ease of use
93%
value for money
Pros:
  • Comes in four 16-ounce bars.
  • Works in all weather and climates.
  • Suitable for both wet and dry areas.
  • Resistant to moisture and molds.
  • The bars will keep for years.
  • Features potent anticoagulant properties.
Cons:
  • Rats will require a much bigger dosage for the poison to take effect.
  • Takes time to take effect.
Final Take:

This is one of the hardiest rat poisons you can find. You can use it both indoors and outdoors, and it will still kill rats even during bad weather. You can put this in a wet area for a week and you’ll start finding rat corpses soon after. The same goes for spots that are quite hot and dry, which could dehydrate other brands. The bars themselves make it easy to divide the poison into reasonable portions.

5. Fastrac Rodenticide Fasttrac Blox

Fasttrac Blox, Fastrac Rodenticide 4lb pail
Specifications:
90% Overall

Dimensions

7.75 x 7.95 x 7.5 inches

Weight

4.54 pounds

Unit

Blocks

Quantity

12 pieces

92%
potency
90%
efficacy speed
89%
ease of use
90%
value for money
Pros:
  • Kills mice as fast as 24 hours.
  • Rodents can stop feeding after receiving a lethal dose.
  • Highly resistant to weather conditions.
  • Perfect for attracting mice and rats.
  • The instructions are easy to follow.
  • By-products and impurities are removed by Bromethalin.
Cons:
  • It can also attract other rodents like squirrels.
Final Take:

This rat poison is highly effective and can kill rodents as fast as 24 hours. Its appeal is quite potent, as well, since rats, mice, and even other animals can’t get enough of it. The anticoagulant properties of the poison take effect almost immediately. Using this product, you can clear out a severe rat infestation in a matter of weeks. You will be cleaning up a lot of dead rats in no time.

Best Rat Poisons - Buyer's Guide

Bait or Poison

Not all baits are rat poison and the same thing is true in reverse. Some baits can have poison in them but they are made more as a way to lure rats into traps rather than kill them. So you need to make sure that you are getting a substance that is designed to actually kill the rats. Otherwise, the effects might not be what you are looking for.

taste and smell

Many rat poisons are given scents and flavors that would appeal to rats. These would then entice the rats to nibble on the poisons even as it is killing them. However, not all rat poisons will be scented and flavored. Even with those that are, they are not necessarily that effective at luring in the pests. So make sure to choose your rat poison with this in mind.

quantity

You can buy rat poisons in packets and you can also purchase them in buckets. How much you get will depend on the severity of the infestation, the size of the area you will apply the poison in, and the quality of the poison. Small farms or large gardens will typically need a large amount to cover the area. For apartments or small houses, though, a few bars or packets would likely be enough.

form

Rat poison can be pellets, powder, bars, and blocks. These are important considerations because they can dictate what you can do with the substances. Pellets are difficult to place in narrow, cramped, or elevated areas. With a block, you can break off a piece and throw it in the space between the ceilings and your roof. Powder, on the other hand, can be mixed with the garbage more effectively.

extra features

Some rat poisons can come with extra features that are intended to make them more effective. This can include more enticing colors, being weatherproof, and more. If your situation warrants it, you can get rat poisons with those or other special benefits. If not, your typical flavored and scented variety will be enough.

Best Rat Poisons - FAQs

Are rat poisons better than rat traps?

Results can vary depending on the poison and the trap. In many cases, rat poisons have a higher chance of killing more rats due to the fact that there is no need to set anything up. You just take pellets, blocks, or bars and place them in areas where you think the rats are coming from. Setting up traps, on the other hand, can be a lot of work. They are also limited in the number of rats they can kill.

Are rat baits the same as rat poisons?

It depends on the bait. Some baits are only artificial substances that are meant to attract rats so that they can be trapped. Others are actual rodenticides and will also kill the rats quickly once they have been caught. It’s a good way to make doubly sure that the rats will die in case they manage to escape the trap.

Why do rat poisons need to be flavored?

Rat poisons are given additional qualities like taste and smell in order to entice rats to eat them. If the rats believe that they are eating food or leftovers, they will be less hesitant to do so. On top of that, rats have an extremely sensitive sense of smell. They can detect poison once they have been around it long enough, so food scents are added to hide the poison for as long as possible.

What does it mean when rat poison is meant for Norway rats?

Norway rats are one of the most common rats found in the world and despite their name, they actually come from Asia. They boarded ships from one place and then would disembark in another. When a rat poison says that it can kill Norway rats, it simply means that it will eliminate the most common rat around you.

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