How Much Hydrogen Peroxide To Give. The typical 3% hydrogen peroxide concentration found in stores can be used as a disinfectant, or you can dilute it to a 0.5% concentration, which still has some effectiveness, using a mixture of 2.5 parts water and 0.5 parts 3% hydrogen peroxide. The suggested dosage is 1 teaspoon per 5 pounds of the dog's body weight by mouth, with a maximum dose of 3 tablespoons for dogs who weigh more than 45 pounds.
What to watch out for when using hydrogen peroxide to induce vomiting the maximum amount of hydrogen peroxide a dog can ingest is 45 milliliters. The maximum amount of hydrogen peroxide to be given at any one time is 45 ml, even if a dog weighs over 45 pounds. How much the dog should take:
