If your child swallowed rat poison, call Poison Control immediately at 1-800-222-1222. If your child is having seizures, difficulty breathing, or is unconscious, call 911 instead. While you wait for guidance, remove any remaining poison from your child’s mouth, find the product container, and do not try to make your child vomit.
What to Do Right Now
Stay calm and act quickly. Your first call should be to Poison Control at 1-800-222-1222 (available 24/7 in the United States) or 911 if your child is showing serious symptoms like difficulty breathing, seizures, extreme drowsiness, or loss of consciousness. Poison Control specialists handle these calls every day and will walk you through exactly what to do based on the specific product and your child’s size.
Before you call, gather three pieces of information:
- The product container or packaging. The brand name, active ingredient, and EPA registration number on the label are critical. If you can’t find the container, note the color and shape of the bait.
- Your child’s age and weight.
- The time the ingestion happened and roughly how much your child may have eaten.
Remove anything still in your child’s mouth. Do not give syrup of ipecac or try to induce vomiting. For some types of rat poison, vomiting can actually cause additional harm. The Poison Control specialist or emergency physician will decide whether any stomach-emptying measures are appropriate.
Why the Type of Rat Poison Matters
Not all rat poisons work the same way, and the type your child swallowed determines how dangerous the situation is and what treatment looks like. This is why finding the product container is so important. There are three main categories sold in the U.S.
Anticoagulant Rodenticides
These are the most common type found in homes. Consumer bait stations in the U.S. typically contain either chlorophacinone or diphacinone (first-generation anticoagulants). Professional-grade products may contain more potent second-generation versions like brodifacoum or bromadiolone. All of them work by blocking your body’s ability to recycle vitamin K, which is essential for blood clotting. Without functioning clotting factors, uncontrolled internal bleeding can occur.
The dangerous part about anticoagulant poisons is that symptoms don’t appear right away. Blood clotting problems typically show up 3 to 7 days after a toxic dose is swallowed. Your child may seem perfectly fine for days before signs of bleeding develop: unusual bruising, nosebleeds, blood in urine or stool, pale skin, weakness, or difficulty breathing. This delay is exactly why professional medical evaluation matters even if your child looks fine right now.
Bromethalin
Bromethalin is one of the most common active ingredients in consumer mouse and rat bait stations. It works differently from anticoagulants. Instead of affecting blood clotting, it targets the nervous system by disrupting how cells produce energy. Symptoms can include muscle tremors, seizures, and loss of coordination. This type requires different treatment than anticoagulant poisons, and there is no specific antidote, which makes rapid identification and early treatment especially important.
Zinc Phosphide
Zinc phosphide is more commonly used in agricultural settings than in home products. When it reaches the stomach, it reacts with stomach acid to release a toxic gas called phosphine. Symptoms appear fast, often within 30 minutes: nausea, vomiting, and stomach pain, sometimes with a garlic-like odor on the breath. This type can rapidly progress to serious cardiovascular and organ problems. Inducing vomiting with zinc phosphide is particularly dangerous because phosphine gas released during vomiting can damage the lungs and even harm anyone nearby who inhales it.
What Happens at the Hospital
If Poison Control or 911 directs you to the emergency room, bring the product container with you. The treatment your child receives depends entirely on which poison was ingested and how recently.
For ingestions caught early (generally within one hour), doctors may give activated charcoal. This is a liquid your child drinks that binds to the poison in the stomach and prevents the body from absorbing it. It works best the sooner it’s given. For larger ingestions, it may still be helpful up to four hours after swallowing.
For anticoagulant rodenticides, doctors will order blood tests to check your child’s clotting ability. Because it takes 2 to 5 days for clotting problems to show up in blood work, your child may need to return for follow-up testing even if initial results look normal. The antidote is vitamin K1, which restores the body’s ability to form blood clots. For first-generation anticoagulants, treatment may last a few weeks. Second-generation anticoagulants are far more persistent in the body. In serious poisoning cases involving these longer-acting products, vitamin K1 treatment has lasted an average of 168 days, with some cases requiring treatment for months or even longer.
For bromethalin and zinc phosphide, there is no specific antidote. Treatment focuses on removing the poison from the body as quickly as possible and managing symptoms as they arise.
When a Small Amount Still Needs Attention
Parents often wonder whether a tiny nibble is really an emergency. The answer is: always call Poison Control, even for a small amount. Children are much smaller than adults, so a dose that seems trivial can be significant relative to their body weight. A 25-pound toddler is affected by a much smaller quantity than an adult would be. The Poison Control specialist will calculate whether the amount your child ingested is likely to be toxic based on the product, the active ingredient concentration, and your child’s weight. In some cases, they may tell you it’s safe to monitor at home. In others, they’ll direct you to the ER. Let them make that call rather than guessing.
What to Watch for in the Days After
If Poison Control advises home monitoring (which can happen with very small ingestions of anticoagulant products), watch your child closely for the next one to two weeks. Signs that need immediate medical attention include unexplained bruising, bleeding gums, blood in the stool or urine, nosebleeds that won’t stop, unusual paleness or fatigue, and shortness of breath. Any of these could signal that the poison is affecting your child’s ability to form blood clots.
For bromethalin exposures being monitored at home, watch for changes in coordination, unusual eye movements, lethargy, or muscle tremors. These symptoms can develop within hours to days after ingestion.
Preventing Future Exposure
Children are naturally curious, and many rat poison products are designed to look and smell appealing to rodents, which unfortunately also makes them attractive to toddlers. Bait stations sold for home use are required to be tamper-resistant, but “tamper-resistant” doesn’t mean childproof. If you use rodenticides in your home, place them in areas completely inaccessible to children: behind heavy appliances, inside locked utility rooms, or in crawl spaces. Consider switching to snap traps or electronic traps that don’t involve toxic bait.
Keep the Poison Control number, 1-800-222-1222, saved in your phone and posted somewhere visible like the refrigerator. In a poisoning emergency, having that number immediately available saves critical minutes.