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Your dog just ate something they shouldn’t have — chocolate, grapes, a sock, medication off the counter. Whether you should make them vomit depends entirely on what they ate and when. Done right, induced vomiting can prevent a poisoning; done wrong, it can turn a bad situation into an emergency. Read the “do not” list first.
Step Zero: Call Before You Act
Call your vet, an emergency clinic, or a poison hotline (ASPCA Animal Poison Control: 888-426-4435; Pet Poison Helpline: 855-764-7661) before inducing vomiting. Tell them what was eaten, how much, and when. Vomiting only helps within roughly 1-2 hours of ingestion — after that, the substance has moved past the stomach.
When You Should NOT Induce Vomiting
- Corrosives or petroleum products — bleach, drain cleaner, batteries, gasoline: they burn twice if they come back up
- Sharp objects — bones, glass, skewers
- Your dog is drowsy, seizing, or having trouble breathing — aspiration risk
- Brachycephalic breeds (Pugs, Bulldogs, Frenchies) — high aspiration risk; let the vet do it with injectable medication
- It has been more than 2 hours — vomiting accomplishes nothing
The Only Home Method Vets Accept: 3% Hydrogen Peroxide
If — and only if — a professional has told you to proceed:
- Use fresh 3% hydrogen peroxide (nothing stronger; old flat bottles don’t work)
- Dose: 1 teaspoon (5 ml) per 10 lbs of body weight, maximum 3 tablespoons (45 ml) even for giant breeds
- Give by syringe or turkey baster toward the back of the tongue; a small meal beforehand helps it work
- Walk your dog gently — movement triggers the vomiting, usually within 10-15 minutes
- If nothing happens, you may repeat once. Never a third dose.
- Collect a sample of the vomit for the vet, and go in for a check even if all came up
Never use salt (sodium poisoning), mustard, ipecac, or fingers down the throat — all dangerous, none reliable.
After the Vomiting: The Recovery Window
Hydrogen peroxide irritates the stomach lining, and the toxin plus the vomiting episode disrupts the gut. For the following days: small bland meals (boiled chicken and rice), constant water access, and gut flora support — a liquid probiotic for dogs helps restore the microbiome after the upheaval. If soft stool follows, our guide to diarrhea in dogs covers the protocol. Watch 48 hours for lethargy, repeated vomiting, or blood — any of these means back to the vet.
Prevent the Next Scare
Dog-proof like you would toddler-proof: medications in closed cabinets, chocolate and grapes off counters, trash secured, xylitol products (gum, some peanut butters) out of the house entirely. Keep the poison hotline number on your fridge. More emergency and health guides at Dog Health Insider.
Scientific References
- Khan SA, Mclean MK, Slater M, et al. Effectiveness and adverse effects of the use of apomorphine and 3% hydrogen peroxide solution to induce emesis in dogs. J Am Vet Med Assoc. 2012;241(9):1179-1184. (PubMed)
- Niedzwecki AH, Book BP, Lewis KM, et al. Effects of oral 3% hydrogen peroxide used as an emetic on the gastroduodenal mucosa of healthy dogs. J Vet Emerg Crit Care. 2017;27(2):178-184. (PubMed)
- Cote DD, Collins DM, Burczynski FJ. Safety and efficacy of an ocular insert for apomorphine-induced emesis in dogs. Am J Vet Res. 2008;69(9):1360-1365. (PubMed)
This article is informational — always contact your veterinarian or a poison control hotline before inducing vomiting, and seek immediate care for corrosive or sharp-object ingestion.