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7 Best Rat Poisons – Comparison & Reviews

Last Updated: 05.02.23


The Essential Guide to Finding the Best Rat Poison + Reviews


Finding the best rat poison may not be that easy since you might not have the necessary time to go through all the related information. For this reason, our team has decided to give you a hand and bring you the answers you need. We’ve carefully reviewed the benefits each product offers, gathering data from previous buyers and experts in the field, and concluded that the rat poison you should keep in mind as a first option is Farnam’s Just One Bite II. Effective even for the resistant Norway rats, this product contains bromadiolone as the main active ingredient, which is a substance known for its potency. Moreover, the formula has an appealing taste so rats and mice enjoy eating it, and the lethal dose can be ingested in a single feeding. Its effects are seen within 4 to 5 days. If you cannot find this particular product in your area, the closest alternative to keep in mind is MOTOMCO’s Tomcat.



Comparison Table


The Good
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7 Best Rat Poisons (Reviews) in 2023



Since you’re probably looking for the best poison for killing rats, we’ve decided that it might be useful to know what the most effective alternatives you can find on the market are. In the next section, you’ll find a selection of these chosen based on multiple expert and customer reviews.



1. Farnam Just One Bite II 1.5-Ounce Pellet Packs


If you are in the market for some good rat poison, but you are not sure which product can get the job done with less hassle on your part, then you should keep reading to see what Farnam’s Just One Bite II has to offer. The product comes as 1.5-ounce pellets and there are 86 of these in the package.

We know that mice and rats are pesky creatures that can cause a lot of damage around any property, so the high number of satisfied customers is a testimony to this product’s efficiency. According to previous buyers, mice and rats gobble the pellets, since the taste is irresistible to them.

If you want to minimize the mess associated with catching these rodents, you can create little bait stations in plastic containers, and strategically place them along the paths of rats and mice within the yard or garage.



The Just One Bite II poison delays death by 4 to 5 days, which means that there is no bait shyness that you need to worry about.

There are many types of rats and mice around, but this product can help you get rid of most of them, even of Norway rats which are known for being very resistant.

Given the formula, rodents enjoy eating these rat poison pellets, which means that they can consume lethal doses even in a single night’s feeding.

As for rat poison ingredients, the main one in this product is called bromadiolone, also known as super-warfarin thanks to its potency.



Even though you’ll get rid of the pesky rodents, you will still have to deal with cleaning up once the product works.

In rare cases, house mice might not be that much into the bait, but this problem was not noticed when it comes to outdoor rats.

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2. Motomco Tomcat Mouse and Rat Pack


If you are dealing with a rat infestation and you need to find a cheap rat poison that can easily get the job done, MOTOMCO’s product is definitely worth a closer look. According to the manufacturer, Tomcat is actually tougher and more effective than a barnyard cat when you need to control the rats and mice population on your property.

If you decide to purchase this product, then you also need to make sure it’s correctly placed around your yard and home. What you need to do is to look for signs of the rodents’ presence along walls, corners, and other concealed places, and then proceed to placing the poison where they can easily reach it. You should also remove any other food sources, as much as possible.

The producer also recommends maintaining a fresh supply of bait around the property for at least 10 days, or until any signs of mouse and rat activity have disappeared. However, do take any necessary measures to protect your pets from finding and ingesting the poison.



Those who have given this product a try stated that it’s very effective, thus paying for itself in a short amount of time by saving otherwise ruined feed.

The formula takes between 4 and 6 days to kill rats and mice, which means any bait shyness is avoided.

The package contains 3-ounce packs that you can conveniently open and place wherever needed.

Thanks to the enhancers and food-grade ingredients added to the formula, the bait is highly appealing and palatable for mice and rats.



One 3-ounce pack might not be enough to kill more than one rat, so you should apply between 1 and 5 Place Pacs at intervals of 15 to 30 feet in infested areas.

Keep it away from children and pets, since they tend to be curious.

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3. Tomcat All Weather Bait Chunx


There are several types of rat poison you can choose from, and the choice depends on your preferences, as well as on the conditions present around your property. If you have tried rat poison blocks in the past and they have proven the right type of bait, then you will probably want to know a bit more about the All Weather Chunx.

This product is specially formulated to be tougher than others or even than a cat when it comes to regaining control over your yard or farm, by dealing with rodents. We all know how much damage they can cause.

That’s why the fact that Tomcat’s All Weather Chunx are made with food-grade ingredients as well is great since this makes them highly appealing for the rats and mice.

In case you are not sure how many blocks you should place at first, you can start with one on each corner known to be on their trails and then check all of them the next day to see if any replacement is needed.



This poison takes about a week to kill rats and mice, which means that they won’t suspect what made them sick in the first place, which might otherwise lead the entire population to avoid the product.

Since this is an all-weather formula, you can safely use it outdoors as needed.

It can be easily placed in areas such as barns and garages, without being too messy.

Thanks to its appealing flavor, the Chunx are palatable, so you will start seeing results in just a matter of days.



Other pets might be attracted by the poison as well, so you need to be very careful when you place it, especially if you have dogs as well.

Unfortunately, poisoned rodents tend to die in rather inaccessible places, which means you will need to make some efforts to get rid of them.

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4. Tomcat Bait Chunx Pail


As you are looking for an effective rat killer poison, you should know that the main active ingredient used is very important, since different chemical substances have different effects on rat populations. If you are dealing with a severe infestation, then it’s a good idea to go for a powerful one such as the Tomcat Chunx Pail.

This formula contains Bromethalin as the premium active ingredient, a substance that has become one of the most widely used pesticides in recent years. Bromethalin is known for ensuring excellent results when it comes to controlling high rats and mice populations since it only takes around 2 days to kill a rodent after the lethal dose was ingested.

This means that is works faster than anticoagulant types of baits, but whether you should choose this alternative depends on various factors, such as the level of infestation and the conditions present around your property.



These bait chunks are made using Motomco’s proprietary extrusion process which means that they feature multiple edges to successfully ignite a rodent’s desire to gnaw.

Each of these chunks is made with small amounts of paraffin and other food-grade ingredients that ensure a highly palatable bait.

Since Bromethalin is a potent poison that affects the victim’s nervous system, each block can kill around 12 mice.

Another effect of this poison is that rodents stop feeding altogether after ingesting a toxic dose, which means that less bait is used to get rid of them.



Given that we’re talking about a potent formula, you need to make sure pets or children cannot have access to it.

Some users state that the bait gets eaten, but they don’t see any rats or mice around, alive or dead (which might be a good thing, considering there’s no need to dispose of them).

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5. Neogen Rodenticide Ramik Mouse and Rat Bars Box


As you’re going through rat poison reviews, you might notice that these products come in various shapes and sizes, and you can choose the most convenient one for your needs. In the case of the Ramik Bars offered by Neogen Rodenticide, these can be successfully used around apartment buildings, as some previous buyers have stated.

Delivered in a 4-pound box, that contains 4 bars weighing 16 ounces each, the Ramik product is effective in controlling roof rats, Norway rats (known for their resistance), house mice, and other similar types of rodents.

Moreover, the formula also ensures that the bars are moisture and mold-resistant, so even if they are not eaten right away, they remain effective for a longer period. According to the manufacturer, the product should only be used indoors, which means that you can purchase it if you need to place bait in buildings or transport vehicles.  



Made with a technology that ensures a highly attractive and palatable flavor, this rat and mouse poison successfully retains its sweetness and freshness, even in humid or otherwise difficult conditions.

Each box contains 4 bars that weigh 1 pound each, making the entire process of placing them less messy.

If you don’t need to use an entire bar at once, these can be broken into smaller pieces and strategically placed around the interior space.

The active ingredient is diphacinone, known for its potent anticoagulant effects on rodents.



Since this product should only be used indoors, if you are looking for something effective to place around your backyard, you need to look for other alternatives.

Some users have noticed that rats can remove the entire bar, so if you want to avoid this, you can wire them through which forces the rodents to eat them on the spot.

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6. First Strike Soft Bait Rat Mice Rodenticide Poison


First Strike’s product is more than merely a rat poison powder, it’s a new concept introduced into what rodenticide management entails. The first thing you should know about this bait is that it is highly effective, given that rodents accept it right away. It comes as bait blocks that are fixed on horizontal or vertical bars and that can be used as regular ones.

In terms of the main active ingredient, this is called Difethialone, it was developed by Liphatech, and it’s one of the most advanced rodenticides available on the market. Moreover, the product is designed to be used in bait stations, and given its irresistible flavors, it’s chosen by rats and mice even when other sources of food are available, thus competing for their attention.

The manufacturer also developed a special type of packaging for this product, and it is one that allows some of the aroma to escape so that rodents are attracted and quickly dealt with, especially in cases of high infestations.



This poison’s formula is developed in such a way as to preserve its integrity and palatability in both cold and hot environments.

You don’t need to worry about cleaning it afterward since the product is not scattered when consumed by rodents.

A bittering agent is added as well in the pouch in order to avoid any accidental consumption.

According to reviews, the first results are visible after 4 or 5 days, and a rapid rodent depopulation takes place in 5 to 11 days after placing it.



Even though it has that bitter agent included, you need to make sure the poison is kept away from children and other non-target animals, such as pets.

The product should be soft and moist, so if you notice that the one you receive is hard and dry, you should contact the seller for assistance.

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7. Selontra Soft Bait Rodenticide


Things are not always so easy when it comes to finding the most effective rat poison, so you might need to take a bit of time and see what benefits various products can offer. On the other hand, you are not mistaken if you’ve set your eyes on an effective solution such as the Soft Rodenticide offered by Selontra.

This product is specially formulated for mice and rats that are resistant to anticoagulants. Moreover, it can be used in various types of spaces, such as residential, agricultural, commercial, or industrial ones. Since this rodenticide is formulated into a soft and stable block, it offers quick results that are visible within 4 or 5 days, after a lethal dose was ingested.

The active ingredient is cholecalciferol, which works differently from anticoagulant poisons and it’s a relatively safe alternative for non-target species, according to some studies. Of course, this doesn’t mean that you shouldn’t prevent children or pets from having access to it.



Selontra’s Soft Bait is a rodenticide specially developed for rodents resistant to anticoagulants, being an effective alternative to these substances.

Thanks to its ingredients and flavors, it’s a high palatable bait, even if other food sources are around.

This Selontra bait remains stable and durable even under extreme temperatures, and it can be used outdoors as well.

You will be able to see the first results within 4 or 5 days after placing it around your property, whether we’re talking about a home or an industrial site, but the amount you place needs to be tailored according to the size of the area it needs to cover.



The product needs to be used in a bait station that is tamper-resistant, to avoid any children or pets from reaching it.

You don’t have any control over where the rodents might die.

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Yearly Guide & Report


No matter if you are a fan of potent substances and you are looking for something specific such as a liquid rat poison, or if you prefer more friendly alternatives and a natural rat poison is more suited to your needs, there are many things you should be aware of before placing such products around your home or backyard.

You might be an animal lover and therefore not a fan of hurting living creatures, but the truth of the matter is that rats are a pest and they can carry various diseases around your home. That’s why they need to be kept under control since this is a matter of safety. Moreover, there’s a reason rats have been around for centuries.

They are highly intelligent rodents that use any opportunity to find food, and they can also reproduce at alarming rates. If that’s the case in your area, then looking for the best rat poison available and getting the job done is the right approach to this issue.



How do rat poisons work?

We’ve already mentioned that rats are smart. With this in mind, scientists and manufacturers have developed products that act quickly but in a somewhat gruesome manner. Anticoagulant substances, for example, cause rats to bleed out once they are ingested.

Other types of poisons affect the electrolyte levels within the bloodstream, with effects on cardiovascular or urinary systems, and some chemicals even work on affecting the nervous system.

Since there are many types of rats and mice, some being more resistant than others, you might need to talk to an expert if you are dealing with a serious infestation and you are not sure which substance is the right one.

Because rats have developed multiple ways to protect themselves and thrive in any environment, they are very careful when it comes to what they are eating. It might not seem like this at first, but if one individual gets sick after immediately ingesting a certain food, the others grow suspicious and steer clear of it for long periods.

That’s why rat bait manufacturers have developed substances with effects that become visible 4 or 5 days after the lethal dose was ingested. On the other hand, bear in mind that these are often potent products that can affect any living thing, so your children and pets need to be kept away from any type of rat poison to avoid any risks.


Where should the poison be placed?

The effectiveness of such a product is ensured by both its formula and by how well it’s employed. You want to make sure that you place the poison where rats and mice can have easy access to it. You should first look for signs of rodent presence such as nests, droppings, gnawing or sounds of animals moving around.

Then you should place the poison alongside walls, around corners, and in covered areas that rats and mice are using. If you notice that the bait is not eaten after a couple of days, you should refresh it and move it in another place.




1) Keep rats at bay

2) Classes of rodenticides

3) What you should know about rodenticides

4) Diseases rodents can transmit



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