To safely induce vomiting in your dog, the recommended method is to use 3% hydrogen peroxide. Here are the key steps and precautions:

• Dosage: Give 1 teaspoon (about 5 ml) of 3% hydrogen peroxide orally for every 10 pounds (4.5 kg) of your dog's body weight. This can also be expressed as 1 ml per pound of body weight or 1 teaspoon per 5 pounds in some sources. Do not exceed a total of about 3 tablespoons for larger dogs

• Administration: Use a syringe or turkey baster to give the hydrogen peroxide directly into your dog's mouth. Be careful to avoid inhalation, which can cause aspiration

• Wait and repeat: Most dogs will vomit within 10-20 minutes. If vomiting does not occur, you may repeat the dose up to a maximum of three or four times, waiting about 10 minutes between doses

• Aftercare: Stay with your dog during the process to prevent re-ingestion of vomit, and monitor their appetite, energy, and bowel movements afterward. Always consult a veterinarian after inducing vomiting, even if successful

• When NOT to induce vomiting: Do not induce vomiting if your dog has ingested corrosive substances (like bleach, drain cleaners), sharp objects, hydrocarbons (gasoline, kerosene), or if the dog is already showing symptoms of toxicity or has certain medical conditions (e.g., brachycephalic breeds, megaesophagus, laryngeal paralysis)

• Avoid unsafe methods: Never use salt, baking soda, mustard, or washing soda crystals to induce vomiting, as these can be dangerous or ineffective

If you suspect your dog has ingested something toxic, contact your veterinarian or an emergency animal hospital immediately before attempting to induce vomiting. In summary, the safest home method to make your dog throw up is to use 3% hydrogen peroxide at the correct dose, with vet guidance and awareness of contraindications