To induce vomiting after ingesting something poisonous (after consulting with poison control centers or emergency services), adults are generally advised to take 15–30 ml of ipecac syrup followed by 3–4 glasses of water.⁹ Children age 1–12 years should take 15 ml of ipecac syrup followed by 1–2 glasses of water. Children under age 1 year should be given 5–10 ml syrup followed by one half to 1 glass of water. The poisoned subject should be kept moving and the head kept upright after taking ipecac. It may take up to 30 minutes before vomiting occurs. A second application of 15 ml followed by more water can be used if vomiting does not occur after 30 minutes. If vomiting still does not occur after the second use, it is best to go immediately to the nearest hospital to have the ipecac pumped out of the stomach and obtain further help for the original poisoning. Milk or carbonated drinks should not be substituted for water after taking ipecac, as they might interfere with ipecac’s absorption and efficacy. Activated charcoal will also interfere with the absorption and efficacy of ipecac. Charcoal should only be given after ipecac has caused vomiting. Ipecac should never be used to induce vomiting of caustic poisons such as gasoline, acids, or bleach. Ipecac tincture and fluid extract are much stronger than ipecac syrup. Ipecac tincture or fluid extract should never be taken in the amounts listed above for ipecac syrup.