Do not give this product for persistent or chronic cough such as occurs with smoking, asthma, emphysema, or if cough is accompanied by excessive phlegm (mucus) unless directed by a doctor.

• 这个产品不适用长期或是慢性咳嗽，比如由吸咽，哮喘，肺气肿引起的或是咳嗽伴有过多的痰，除非医生指导使用。