Do not use longer than advised; seek medical help if cough persists >7 days, is recurrent, or is associated with fever, wheezing, breathlessness, chest pain, or blood in sputum. May cause drowsiness—avoid driving/operating machinery if affected. Use caution in children, elderly, pregnancy/breastfeeding, asthma/COPD, liver disease, and if taking other cold/cough medicines (risk of duplicate ingredients). Avoid use if allergic to any components.