1, the efficacy of the Chinese medicine piper betel bark is mainly can be diligent gas broad chest clear lung heat, phlegm, can be used for the treatment of lung heat caused by cough, and phlegm viscous is not easy to cough out, can be used for the treatment of epigastric distension, diaphragm, can also be used for the treatment of a class of coronary heart disease, angina pectoris, for the use of piper betel bark the main contraindications for the use of the spleen and stomach cold patients is not suitable for the use of the patient.

2, because the piper betel has a very good role in clearing heat and phlegm, and cold body people take piper betel is not suitable, and piper betel has a certain drain heat laxative effect, for the spleen and stomach weakness, loose stools patients are also not suitable for taking. Therefore, it is necessary to analyze the condition to determine whether it is appropriate to use.