It is a nutritional supplement that helps fight colds, flu, coughs, runny nose, helps improve the respiratory system, and helps strengthen the immune system. How to use: Adults: 10 ml each time, 1 to 4 times a day. Children (by weight): 10 to 12 kg: 5 ml per day (1.5 ml in 2 or 3 doses) 13 to 15 kg: dose 5 ml, 2 times a day. 16 to 24 kg: dose 5 ml 3 times a day. 25 to 40 kg: Dose 10 ml 2 to 3 times a day.