Do not use if allergic to any ingredient. If cough persists beyond 7 days, or is accompanied by fever, wheezing, breathlessness, chest pain, or blood in sputum, consult a doctor. Use with caution in diabetes (contains honey/sugars) and in patients with hypertension/heart disease if using large/prolonged doses (licorice may affect blood pressure and potassium). Not a substitute for prescription therapy in asthma/COPD or serious infections.