Plantain contains a dry extract of plantain leaves (Plantago lanceolata). Plantain is a plant traditionally used to relieve dry cough. It contains mucus that coats the mucous membrane of the upper respiratory tract and thus reduces the irritation of the mucous membrane to cough. Plantain liquid dietary supplement is taken three times a day, depending on age, in an amount of 5 to 10 ml. It can be taken by children older than 3 years.