Care Simple Linctus is a cough medication that provides symptomatic relief. Recommended for patients aged 12 and above. This medicine contains citric acid monohydrate, a compound from citrus fruits. Linctus is a syrup-like liquid used for oral ingestion of medication. It coats the throat and helps reduce irritation that causes coughing. You should consult a doctor if your symptoms do not improve. We advise all patients to read the patient information booklet.