Affiliate Disclosure None of our reviews are sponsored. We earn a commission when you purchase items through our links.
Best-Tomcat-Rat-Poisons: photo

Tomcat Rat Poison (Reviews) – Ingredients & Effectiveness – Chunks & Pellets (2022 Buyer’s Guide)

What is the best Tomcat rat poison? Depending on the situation, you may choose fast-acting and highly toxic bromethalin or slow-acting diphacinone that kills only when multiple doses are consumed. Tomcat baits are formulated as chunks or pellets. The former ones are designed for a bait station and have a hole inside. Pellets are more versatile and suitable for mixing with all kinds of food items. There is also a bait product designed to withstand adverse weather conditions.

Tomcat Bait Chunx Pail 4 LB
The active ingredient of this poison is bromethalin, an acute toxicant that can be used only in rural and agricultural settings. Ideal for severe rat infestations. The mold- and moisture-resistant chunks have multiple edges, food-grade ingredients, are palatable, and low in paraffin.

Tomcat Bait Chunx Pail 4 LB min: photo
Check the current price

Tomcat All Weather Bait Chunx, 4 Lb
This is the best rat poison to use in adverse weather conditions. Formulated as chunks flavored with peanut butter, this bait is highly palatable to rats. For safety reasons, it contains slow-acting diphacinone that kills only after multiple feedings.

Tomcat All Weather Bait Chunx, 4 Lb min: photo
Check the current price

Motomco 008-32345 Tomcat Rat and Mouse Bait Pellet, 10 lb
This 10 lbs canister is a cost-efficient solution for rat control in large areas. Made with diphacinone, it should be applied in and around agricultural structures. The bait comes in the form of small and versatile pellets and kills rodents within 4 days, without bait shyness.

Motomco 008-32345 Tomcat Rat and Mouse Bait Pellet, min: photo
Check the current price

Tomcat Rat & Mouse Killer Refillable Bait Station
Created as a pre-baited station, it is easy-to-use and efficient. The box is weather- and tamper-resistant, reusable, and is designed for holding 2 poison blocks at a time. It features a transparent window for bait monitoring. Fifteen blocks with fast-acting bromethalin are included.

Tomcat Rat & Mouse Killer Refillable Bait Station min: photo
Check the current price

Motomco Bait Station
This bait station is very reliable as it is tamper-resistant, has a security key, and 8 bait security rods. You can mount it to the wall vertically and horizontally. The box is easy to maintain as it comes with a removable tray. It is designed for both indoor and outdoor use.

Motomco Bait Station min: photo
Check the current price

Why Tomcat?

This is a well-known brand on the rodent control market that offers a variety of high-quality and efficient products. Tomcat baits are fresh tasting and very appealing to rats and mice. Manufactured using an advanced formulation process, they attract rodents, including those resistant to other poisons. They boast a long shelf life and an enticing flavor. There is also a line of weather-resistant baits that preserve their effectiveness under any weather conditions when applied outdoors.

Types of Tomcat Rodent Baits

Tomcat baits are available in large pails, with a volume ranging from 4 to 10 pounds. This is an economical option for everyday rodent control, allowing you to efficiently apply rat poison to both small and large areas as well as to hard-to-reach areas.

Made in the form of chunks or pellets, they satisfy different customer needs. The advantage of chunks is that they have a hole inside and can be easily placed on the rod in a bait station or pinned to any surface. Pellets are smaller in size and more versatile. You can easily mix the pellets with rats’ favorite food to make the bait more attractive to them.

How long does Tomcat rat poison take to work | Poison ingredients

Tomcat rat poisons differ by the active ingredient used. They are based on either bromethalin or diphacinone. These are not just different chemical compounds — bromethalin or diphacinone have a different mode of action.

Bromethalin is an acute toxin that kills rodents by disrupting their nervous system. It is a fast-acting poison, so a single dose is sufficient for a rat to die. The downside of this ingredient is the absence of an antidote, which is why it is considered to be very dangerous to use around pets and livestock.

Diphacinone is a slow-acting poison that requires multiple feedings to kill a rat or mouse. Due to the delayed effect, it is often preferred for application in residential areas where small children or pets run a risk of accidental poisoning. It kills rodents by causing internal bleeding.

Some Tomcat rat poisons come placed inside of a bait station to prevent any potential harm to children and pets. There are both refillable and disposable bait stations, with the latter being cheaper. In our assessment, it is more cost-efficient to buy reusable bait stations, however, much depends on the level of infestation. In addition to baits, Tomcat offers rodent traps and repellents for rodents, ensuring an integrated approach to pest control management.

The Effectiveness of Tomcat Baits Based on Scientific Evidence

The Tomcat brand is not just popular with customers, but it is also referred to in scientific studies on rodent control products. Scientists from the University of Nebraska-Lincoln mention this brand, along with D-Con and JT Eaton, as a manufacturer of both slow-acting and fast-acting rodent poisons.

They note that bromethalin-based products are more toxic and should be preferred in areas where rodents are abundant. Since such poisons kill after a single dose is consumed, they are recommended for situations where there are other alternative food sources that cannot be removed. In this case, it may be hard to get rodents to consume the bait several times in succession. The advantage of using baits containing diphacinone is that they are much safer and will not lead to bait shyness.

Researchers at Purdue University highlight the importance of using bait stations, which can be non-tamper-proof or tamper-proof like the Motomco Bait Station. This container comes with a security key and eight bait security rods. It can be mounted to the wall both vertically and horizontally and is equipped with a removable tray that makes cleaning easier.

Outpost Rat Bait Station | Single Station Targets Small Mice Up to Large Rats | Position Horizontal or Vertical | Made in USA

According to the experts, there are three reasons for placing baits in containers rather than broadcasting them around the ground.

  1. Bait stations decrease the chance of accidental poisoning of pets and livestock.
  2. They allow you to easily monitor whether and how often rats eat the poison. But keep in mind that rodents may store bait to eat it later.
  3. Boxes preserve the freshness of baits, protecting them from dust, manure, rain, and snow. Contrary to popular belief, rodents tend to avoid dirty or contaminated food.

Best Tomcat Rat Poison Reviews

Below, you will find a review of the best Tomcat rat poisons at a price ranging from $15 to $46. There are more toxic baits that can be used in and around agricultural facilities only and multi-dose poisons that can be applied in residential areas as well. Some poisons are formulated as chunks and are ideal for use in a bait station while others come in the form of pellets and are particularly efficient when a large area needs to be covered.

Tomcat Bait Chunx Pail 4 LB | Best Overall

Tomcat With Bromethalin Bait Chunx Pail, Pest Control for Agricultural Buildings and Homes, Kill Rats and Mice, 4 lbs.

This is the most popular product from the Tomcat brand and here is why. The Tomcat Bait Chunx is both efficient and safe for use. It should be used only with a bait station because its active ingredient, bromethalin, is a potent toxicant. Moreover, you can use it only in rural and agricultural settings. The reason for using bromethalin-based baits is that they are good at controlling severe rat infestations.

The product effectively eliminates both roof and Norway rats as well as mice. Once they consume a lethal dose, they stop feeding and starve to death. The first deaths will occur in two days and more, so this product will not cause bait shyness in rats. The bait chunks are made with multiple edges that are appealing to rats, stimulating them to gnaw. They are resistant to mold and moisture, so feel free to place it outdoors. On top of that, these bait chunks are highly palatable as they include food-grade ingredients and are low in paraffin.

Customers recommend this product and one of them notes that since rats are territorial, it is useless to kill just one colony because another one will move in soon. The only way to keep them away, he says, is poisoning. The Tomcat bait did a great job and “was disappearing every night.”

Tomcat Bait Chunx Pail: Check the current price

Tomcat All Weather Bait Chunx, 4 Lb | Best for Humid Environments

Tomcat All Weather Bait Chunx, 4 Lb

If you live in a region with unfavorable weather conditions, this product will solve your problem seamlessly. It can be used in a variety of baiting situations and remains effective in moist environments. Another advantage of this option is palatability. The poison chunks are flavored with peanut butter, which is the rats’ favorite. Like the previous product, this one also contains food-grade ingredients and just an insignificant amount of paraffin. The bait block features the unique shape and edges that are preferred by rats.

The baits are made with diphacinone, a multiple-feed poison that acts as a blood thinner. Since a single dose is not lethal, it is considered to be safer than bromethalin to use around target animals and small children. Customers rate it highly and say that it is an excellent outside weather bait product. One of the buyers highlights that the chunks stay good in the bait station as long as the lid is on tight. They are not washed away by rains and do not grow moldy.

Tomcat All Weather Bait Chunx: Check the current price

Motomco 008-32345 Tomcat Rat and Mouse Bait Pellet, 10 lb | Best for Large Areas

MOTOMCO, 10 lb 008-32345 Tomcat Rat and Mouse Bait Pellet

If you need to get rid of rats in a large area, choose this product. For less than $50, you get a 10-pound pail of rat poison. Not only is it cost-efficient but it is also convenient to use in and around agricultural structures. The bait comes in the form of small pellets that can be mixed with corn, nuts, or any other food preferred by rodents. This will help to avoid bait shyness and encourage rats to eat the poison. Once a rat consumes the bait, it will take at least 4 days for the rodent to die, meaning other rats will not associate their buddy’s sickness with your poison.

That said, the product is made with diphacinone, a poison that requires several feedings to kill. This makes the pellets a safer option to use around livestock in farms. Besides, they are resistant to mold and moisture, so you can safely place them through the barnyard in any weather. But make sure that neither livestock nor pets and children have access to the poison.

Customers are satisfied with the efficacy of this poison, Tomcat Rat Pellets and seem to be satisfied with the purchase. One of the buyers describes the poison as “incredible” and recommends placing it around the interior of an infested shed or other such facilities.

Motomco 008-32345 Tomcat Rat and Mouse Bait Pellet: Check the current price

Tomcat Rat & Mouse Killer Refillable Bait Station | Best Pre-Baited Station

Tomcat Rat & Mouse Killer Child & Dog Resistant, Refillable Station for Indoor and Outdoor, 1 Station and 15 Poison Refills

What separates this Tomcat product from others on the list is that it is a pre-baited station. No need for touching dangerous substances, just place the box where rats travel — somewhere within 20 to 100 feet between their nests and the source of food. More importantly, neither kids nor dogs will be able to open the bait station because it is tamper-resistant. However, the product is reusable, meaning it needs to be refilled with bait if you are going to continue to use it after rodents eat all that is inside.

The pack includes one station with 15 bait blocks, with each block killing up to 3 rats. Since the box can hold up to 2 blocks simultaneously, you can refill it up to eight times. The bait is made with bromethalin, a highly poisonous neurotoxin. The baits station is weather-resistant and can be safely placed outdoors. It is made with a transparent window allowing you to easily check whether there is enough bait in the box.

The Tomcat Rat & Mouse Killer has received almost 100% approval in customer reviews. Buyers draw attention to the fact that it is made with a dangerous poison that has no antidote, so it is important to handle it very carefully. But this bait station is worth using as it really helps eliminate a rat problem. Besides, it is easy to use. Just load bait chunks and monitor them through the built-in window without opening the box.

Tomcat Rat & Mouse Killer Refillable Bait Station: Check the current price

Tomcat Poison vs Neogen Ramik: Pros&Cons

Neogen Ramik Green Fish Flavored Weather Resistant Rodenticide Nuggets, 4 lb bag (00615)

If you are looking for a cheaper alternative, try the Neogen Ramik Green Fish Flavored Rodenticide Nuggets. Founded in 1982 in Michigan, today, Neogen is a trusted American company that offers solutions for food and animal safety. It makes rodent control products with different active ingredients including diphacinone, bromethalin, and zinc phosphide. The baits are available in the form of blocks, pellets, place packs, meal bait, and nuggets.

This poison is formulated as nuggets that look like natural food. Made with .005% diphacinone, it kills rodents slowly but surely. However, the product does not seem to be very palatable to rats. While it is flavored with fish and contains a mix of grans — something that is supposed to attract rodents — rats do not rush to eat it immediately.

One of the buyers says that initially, he thought that the stuff did not work because the bait disappeared but rats were still there. But after a while, they all were gone. As it turns out, rats had been storing the bait nuggets and only recently ate it. This means the product does work but it is not something that rats cannot resist eating.

Neogen Rat Poison


  • A very good value. It is much cheaper than Tomcat.
  • Weather-resistant and is suitable for outdoor use.
  • Made without the use of wax.
  • The bag is resealable.


  • Rats may not eat the bait immediately because it does not seem to be highly palatable.
  • May not work on the second try.

Tomcat Rat Poison


  • A higher quality of ingredients.
  • The Tomcat bait is very palatable both to rats and mice.
  • Made with only a small amount of wax.
  • Weather-resistant. There is also a.n option developed specifically for use in bad weather conditions.
  • Does not cause baits shyness.


  • Tomcat baits are more expensive.

What Buyers Say: Customer Reviews

In this review, a blogger says that he had rats in the attic. They were climbing through the walls and getting into the kitchen. And then, he purchased the Tomcat rat & mouse killer. It looks like a mousetrap, which prevents dogs and cats from grabbing and eating the toxic bait. He put this thing in the attic and it really works! Since that time, he has not had a rat problem for months.

This blogger has reviewed the Tomcat mouse killer, which is supposed to catch up to 12 mice. It has hardcore chemicals in there, so you really need to be careful with this stuff. He notes that it is guaranteed that if it does not catch mice, you can send your receipt and they will send your money back. The bait station should be placed at the highest point along the wall, 8 to 12 feet apart. Mice eat the bait, walk away, and die.

Poison Bait for rats and mice “Tomcat All-Weather Bait Chunx 4 Lb” Review

We have prepared the review of one of the best sellers in the category of rats and mice baits. Is it worth to use “Tomcat All Weather Bait”, how effective does it work, what do customers say about it, the features of product, tips and questions about using— all you need is in our product review.

Specs of product:

  • Product Dimensions: 10 x 10 x 10 inches ; 4 pounds
  • Shipping Weight: 4.7 pounds
  • Price: around $20

Short product description:

  • Tougher than a barnyard cat for controlling rats and mice.
  • Manufactured with human food-grade ingredients and makes a bait so palatable that rats and mice cannot resist.
  • Bait is produced in 4 and 9 pounds.

Active ingredient:

  • Diphacinone is authorized by USDA for use in official establishments operating under the Federal meat, poultry, shell egg grading and egg products inspection program.
  • It is not quite as toxic to rodents as brodifacoum, but can result in the same level of control.

{code 1239}

Pros of Tomcat All Weather Bait:

  • It works so fast. A lot of consumers say that they began finding dead rats the next day or within the next week or two, it depends on the stage of rodent infestation in house or attic. Also check our article, how to get rid of dead rat smell, if you can not find the corpse of rat and it started to stink.
  • It’s enough to deal with rodent problems for a very long time: “Once the immediate problem is resolved, I’ll just leave the bait blocks in place and check them about once a month. If one is eaten, I’ll replace it at once. No more rats!”.
  • Tomcat bait is easy to use and works against mice, squirrels, voles, raccoons, chipmunks and other rodents that damage your life.
  • “This product is just like the bait professional exterminators use in Protecta bait traps. Costs less than exterminator visit and does the same job!”
  • In many cases, it is even more effective than rat traps because some rats have too big size for traps.

Cons of bait:

Some consumers say that this bait doesn’t work because «apparently there are mice resistant to anti-coagulant based poisons». It can be true in some cases. It might happen also because rats and mice are very canny and if they’ve seen that one died from this bait they can reject eating it. Then you should change the bait and use another active ingredient (Our review of all rodenticides and their ingredients you can read in Best Rat and Mouse Poison Baits).

Features of using product:

  • Always use a bait station if you have pets. Be aware that these bait blocks are attractive to more than just rats – and dogs too. But fortunately, the chemical isn’t very dangerous for dogs in the concentrations in the bait blocks (birds are more susceptible to poisoning, be careful!). The baits have holes to insert the steel rods in a bait station which keeps them away from other animals.
  • Rats can gather up the blocks and take them back to their nest, where they will die. So you might think that the bait doesn’t work because you don’t see the rats’ corpses.
  • These blocks of bait don’t dissolve after just one rain! It’s so important if you use it outdoors!

Advice from customers:

  1. «You need to keep your baits out at all times in case they didn’t ingest enough. I don’t think it’s one bite and they’re dead so be consistent».
  2. One man said he took a plastic shoe box, drill a hole in each end and put the block inside with the lid on. Then put that home-made bait station in the chicken house along the walls where he usually saw the mice running.
  3. «Use the peanut butter and sugar added to the crushed/powdered “Tomcat” bait chunks – and you’ll get rid of rats!».

Questions & Answers about Tomcat All Weather Bait:

How long does the bait last?

It depends on rodent population. A bucket lasts most of the summer and fall. In the winter, it can last for all season.

Where should I put it out and how?

You should put it on the floor or ground, no dishes. Don’t worry about your floor, everything’s gonna be alright, but keep your pets away from these baits areas just in case. There are a lot of areas where a bait can be placed, such as: rooms, attic, corners of the garage, basement and others infected places. You can also put it in a special bait stations if you need. Just remember to place the poison or bait stations where you have seen the most rodent activities.

How long does it take for the rodent to die after eating the bait?

It does seem to take from several hours to several weeks: mice may die even for a day, but the population of rats die more slowly, within a week or two, because they are larger than mice.

You May Also LIke


Affiliate Disclosure

None of our reviews are sponsored. We earn a commission when you purchase items through our links. Learn more

Recent Posts

Send Us A Message

You May Also LIke

14 thoughts on “Tomcat Rat Poison (Reviews) – Ingredients & Effectiveness – Chunks & Pellets (2022 Buyer’s Guide)”

  1. Hilary, no, rodents poisons don’t dehydrate. Poison baits disrupt the blood’s ability to clot, causing internal bleeding and rodents die from internal hemorrhages. Some of these products are able to affect the nervous system, liver and kidneys’ functions.

  2. I have mice in my ceiling. If i put a trap up there with the mouse die in the walls and start smelling bad

  3. This stuff is crap!
    Your customer service don’t care.
    Told me to call the place I bought it and they will do nothing about it.
    20 bucks in the garbage.
    I am so disappointed in this product. I should have read the reviews before buying.

  4. This stuff is Great my woman friend bought a house with a ton of picker brush surrounding the yard , She dident know it was infested with huge Norway rats. Not knowing she began feeding the birds and soon the rat were under her porch by the dozens. We bought Tomcat and the first day we placed it out it killed 5 rats.. very happy ……..

  5. Ive had it for 3 days. The mice are nowhere to be seen already. I had the bait station but they found the box and had a feast. Starting to smell a stench

    1. I’ve been using this product and Ramik blocks for almost 2 years and to the tune of over a thousand dollars and the problem is only getting worse. I live on a standard residential lot and my neighbors on either side don’t have a rodent problem. My house is well maintained no garbage laying around. I am at my wits end on what to do next.

  6. The smell of dead mice/rats goes away in about 10 days. I’ve read where there is a paint with ‘smell retardant’ in it. lol I will outlive the smell. But I can’t deal w a perpetual mouse colony. I did find a hole that led inside & crammed it tight with steel wool. I’ve only had 1 or 2 before & easily got rid of them. Now because of the new construction in late fall and a couple of fires in nearby homes, I gotta be really infested because they kept eating the other stuff I had. My last hope.

  7. We had a serious problem of rats. And these are big rats. I got the Tomcat poison started working about 3 days later I the only problem I had one died under the porch besides that it’s very effective and it’s well worth your money

  8. Took a few days to finally see some action..but after that I`m using a block a night. Used about 10 so far. Am I killing that many or is it the same mouse/rat that i`m feeding each night? Initially loaded the bait station with 2 blocks but they`re eating it so fast I am using 1 per night. Just checked it this morning 7/17/18 and its empty. Box reads each block kills 5-6 mice…so I killed 50+ mice with the 10 blocks??

  9. This year January 2019 I bought 4 kg Tomcat blocks, and placed some blocks in my Allotment in the Green house and around it , The rats consumed at least 3 kg within 2 weeks, only just I got some result as some of the Baits still laying around , I quess it takes longer then 2 weeks for the poison to take affect, some blocks were tied up with a zip tie ,but the loose ones were taken away.with a bit of luck I could reduce the rodents. the bottom line is if you wanna get rid of the rats ,patience !

  10. Big rats been eating 3 or 4 bars a night for 3 weeks now haven’t seen or smelt a dead one yet how long do I keep using it I’m on bag 4 of the 18 count bags

  11. Have been using the anti-coagulant chunks in Mid-west bait stations for years and it is very effective. Now part time in Arizona and find some melted. Would the bromethalin chunks work better in very hot conditions?

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top