Prospan Cough Syrup is an effective treatment for chesty (productive) coughs. Prospan contains active ingredient Hedera Helix (Ivy Leaf Extract) which helps liquify and clear mucus from the airways and relax and calm convulsive coughing. Troublesome and painful coughing is calmed but not blocked.
 
Active ingredient of Prospan Expectorant & Prospan Infant Drops: Hedera Helix equiv. 43.75mg/mL dry leaf.