If your dog just ate drugs, call your veterinarian or an emergency animal hospital immediately. While you’re on the phone or driving there, try to identify exactly what your dog consumed, how much, and when. That information will shape every treatment decision. If you can’t reach a vet right away, call the ASPCA Poison Control Hotline at (888) 426-4435 or the Pet Poison Helpline at 855-764-7661. Both operate 24/7, and a consultation fee may apply.
Your First Steps in the Moment
Grab the pill bottle, baggie, wrapper, or whatever packaging you can find. Your vet needs to know the substance name, the strength or concentration, roughly how much is missing, your dog’s weight, and how long ago the ingestion happened. If your dog vomits on its own, save a sample. All of this helps the veterinary team calculate whether your dog received a dangerous dose and which treatment to use.
Do not try to make your dog vomit unless a veterinarian or poison control professional specifically tells you to. For some substances, inducing vomiting can make things worse, causing chemical burns on the way back up or increasing the risk of aspiration into the lungs. Vomiting is generally only useful if it happens within a few hours of ingestion, and the window varies depending on the drug. A professional can tell you whether it’s safe and walk you through the process over the phone if needed.
If your dog is already having seizures, is unconscious, or is struggling to breathe, skip the phone call and drive directly to the nearest emergency veterinary clinic. Keep your dog warm and as still as possible during transport.
Signs That Something Is Wrong
Different drugs produce very different symptoms, and recognizing what you’re seeing can help both you and your vet act faster.
Opioids (fentanyl, oxycodone, heroin, morphine) tend to cause slowed or absent breathing, extreme lethargy, a blank stare, and unresponsiveness. Most dogs show symptoms within 15 minutes of exposure. Opioid poisoning is life-threatening because the drug suppresses the drive to breathe. An antidote called naloxone (the same Narcan used in humans) can reverse the effects, and some veterinary and first-responder protocols now include it for working dogs exposed in the field. If you carry Narcan and your dog is not breathing, using it intranasally may buy time during transport to a vet, though intranasal use hasn’t been formally studied in dogs.
Stimulants (Adderall, Ritalin, methamphetamine, cocaine) affect the nervous system and heart. Expect extreme agitation, rapid heart rate, dilated pupils, panting, high body temperature, tremors, or seizures. One published case of a small dog exposed to methamphetamine documented a body temperature over 106°F, a heart rate of 186 beats per minute, and repetitive circling behavior. Stimulant toxicity can escalate quickly into dangerous territory, so speed matters.
Marijuana and edibles are among the most common drug exposures in pets. Symptoms include urinary incontinence, disorientation, wobbling or loss of coordination, lethargy, exaggerated sensitivity to touch or sound, and a slow heart rate. Onset ranges from minutes (if the dog inhaled smoke) to several hours (if the dog ate an edible). Most dogs recover fully within 72 hours, and many are treated as outpatients rather than being hospitalized. The bigger danger with edibles is often what else is in the product: chocolate, xylitol (a sugar substitute), or high-fat butter can each cause their own serious problems on top of the THC.
Over-the-counter painkillers like ibuprofen and acetaminophen are toxic to dogs at doses far lower than what humans take. Dogs generally show signs of acetaminophen toxicity at doses above 200 mg per kilogram of body weight, which means even a couple of extra-strength tablets could be dangerous for a small dog. Symptoms include vomiting, dark or tarry stool, lethargy, and in severe cases, liver or kidney failure.
What Happens at the Vet
Treatment depends on how recently the drug was swallowed and what it was. If your dog arrives within the safe window, the vet may induce vomiting with a medication given by injection. This is more effective and safer than home methods. If vomiting isn’t an option, or it didn’t bring everything up, the vet may perform gastric lavage, which involves flushing the stomach directly.
Activated charcoal is one of the most common next steps. Given by mouth, it binds to a wide range of drugs in the stomach and intestines and prevents them from being absorbed into the bloodstream. For certain substances that recirculate through the liver, your dog may receive multiple doses of charcoal over 24 hours.
For fat-soluble drugs like THC, certain insecticides, and some painkillers, vets sometimes use an intravenous fat solution. The idea is straightforward: the fat in the bloodstream acts like a sponge, pulling the drug away from sensitive organs like the heart, brain, and muscles and shuttling it to the liver for breakdown and elimination. This treatment has been used in hundreds of dogs and cats and works best on substances that dissolve readily in fat rather than water.
Beyond decontamination, treatment is largely supportive. That can mean IV fluids to protect the kidneys, medications to control seizures or heart rhythm problems, temperature management for overheating, or simply monitoring in an oxygen-rich environment until the drug clears the system.
Being Honest With Your Vet
Many people hesitate to tell a veterinarian that their dog ate illegal drugs. This is understandable but can cost your dog critical time. Vets need to know the substance to choose the right treatment. A dog on opioids needs a completely different intervention than a dog on stimulants, and guessing wrong can be dangerous.
Veterinarians are not law enforcement. While they have ethical obligations to report suspected animal cruelty, an accidental poisoning is a very different situation. Research into this area has found that pet owners often overestimate the likelihood that a vet will involve authorities. In practice, your vet’s priority is saving your dog, and they need accurate information to do it.
What Recovery Looks Like
Recovery time depends entirely on the drug, the dose, and how quickly treatment started. Marijuana toxicity typically resolves within one to three days, and most dogs walk away without lasting effects. Opioid exposure can resolve within hours once naloxone is administered, though the vet will monitor to make sure the drug doesn’t outlast the antidote. Stimulant and painkiller poisonings are more variable and may require longer hospitalization if the heart, liver, or kidneys were affected.
Once your dog is home, watch for changes in appetite, energy level, urination, and stool quality over the following days. Vomiting, diarrhea, refusal to eat, or unusual lethargy after discharge are all reasons to call your vet back. Some drugs can cause delayed organ damage that only shows up a day or two later, so follow-up blood work is sometimes recommended even if your dog seems fine.
To prevent a repeat episode, store all medications, edibles, and substances in containers your dog cannot open, ideally behind a closed door or in a high cabinet. Dogs are drawn to pill bottles, candy-like edibles, and even powders or residues on surfaces. A dog that got into something once will almost certainly try again.