Prospan for Children relieves congested coughs and improves expectoration. Prospan for Children is clinically researched to: Relieve congested coughs Clear mucus from the airways Prospan for Children acts as an expectorant helping to thin and loosen mucus in the chest. Prospan for Children helps break up the mucus in the chest and helps it to be expelled. Prospan for Children assists in the relief of congested coughs associated with colds or bronchitis.