Histidine (Histidinum) - amino acid. Is used for the treatment of hepatitis, ulcer disease of the stomach and duodenum. Produced in the form of histidine hydrochloride (Histidini hydrochloridum). Administered intramuscularly in a dose of 5 ml of 4% solution every day for 25-30 days. Then make 5-6 injection every 2-3 months. Released in sealed to 5 ml of 4% solution.