Metronidazole once ate 30 tablets should be immediately to the hospital, follow the doctor’s instructions for vomiting, gastric lavage, diarrhea and other emergency treatment, and can be combined with drug therapy, serious cases, the need for blood purification treatment. 1. Emergency treatment: the patient should immediately seek medical attention, follow the doctor’s instructions to take vomiting, gastric lavage and other ways to discharge or remove the drug, if the discharge of drugs less, also need to conduct diarrhea, to reduce drug absorption. 2. Drug treatment: intravenous injection of sodium chloride, potassium chloride and other drugs as prescribed by the doctor, to correct the water electrolyte disorders, the use of polyunsaturated phosphatidylcholine to reduce liver damage; pantoprazole, omeprazole, etc. to reduce gastric mucosal damage. 3. Blood purification: if the above treatment is invalid, blood purification treatment can be carried out according to the doctor’s instructions, in order to facilitate the removal of toxic substances in the blood. Accidental ingestion of 30 tablets of metronidazole can be self-stimulated with a finger to stimulate the throat to spit out the drug, if the time of taking too long, you should immediately go to the hospital, or call the emergency number.