May help support the respiratory system. Plantain fresh plant juice also known as ribwort. Traditionally plantain juice has been taken for its beneficial effects on the respiratory system. because it is so well tolerated by the human body the juice is also a popular choice for children. plantain is primarily used by people with cough symptons who find that it relieves irritation and also has antiseptic, anti inflamatory, astringent and mucolytic qualities.