Pholcodine Linctus is for the symptomatic relief of unproductive coughs. Codeine Linctus helps to relieve dry and tickly coughs through its main ingredient of pholcodine which is a cough suppressant. Codeine Linctus comes in the form of easy to use liquid medication that must be taken orally. However Codeine Linctus may not be suitable for children. Do not administer this to children without seeking medical advice.