Pinellia should not be taken in conjunction with aconite , as it may increase the toxic properties of this substance.
Pinellia should not be used by pregnant women, those suffering from blood disorders, particularly if there is bleeding, fever or conditions which cause heat in the body.
pinellia is particularly useful for chest complaints. It relieves coughs and cuts through mucus, being especially good for sinus congestion and nasal discharge.
Dosage may be in the form of readily prepared pills, again especially in the case of Chinese herbalism, or in the form of a syrup, in which case the recommended dosage should be followed. The dried rhizome may be taken
traditional Chinese medicine uses a variety of herbs to treat respiratory conditions such as pleurisy. the herb ephedra (Ephedra sinica ) is very effective when used appropriately to open air passages. it has been used very safely in this manner for thousands of years in china to alleviate respiratory difficulties in pleurisy patients. other herbs used include pinellia rhizome (ban xia), trichosanthes fruit (gua lou), platycodon root (jie geng) and many others.