Care Simple Linctus Paediatric - Childrens Cough Medication: Care Simple Linctus Paediatric is a childerns cough medication that provides symptomatic relief. Recommended for patients under the age of 12. If you require cough medication for patients over the age of 12 please click here. This medicine contains citric acid monohydrate. Citric acid monohydrate is a compound from citrus fruits. Linctus is a syrup-like liquid, used for oral ingestion of medication. Coats the throat and helps reduce irritation that causes coughing. You should consult a doctor if the symptoms do not improve. We advise all patients to read the patient information booklet.