The side effects of licorice tablets include gastrointestinal reactions, such as nausea and vomiting. In addition, the drug should be used with caution in women during pregnancy and lactation, and its use in the elderly and children is not very clear. Its taste is difficult for some people to accept, and it is supposed to be used by people with some digestive tract diseases, such as gastritis and gastric ulcer, who should not use this product. This drug should not be taken for a long time, and avoid combining this drug with powerful cough suppressants. It is a protective cough expectorant, and then its other excipients include opium powder, which has a strong cough suppressant effect, camphor and anise oil, which can stimulate the bronchial mucosa to reflexly increase glandular secretion, dilute sputum and make it easier to cough up sputum, so these ingredients are generally combined to form a compound preparation, which has a synergistic effect of cough expectorant.