Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Arisaema (commonly known as Jack-in-the-pulpit or cobra lily) is a genus used in traditional medicine, especially in Chinese and Ayurvedic systems. In Traditional Chinese Medicine (TCM), Arisaema species (notably Arisaema erubescens and Arisaema heterophyllum, known as "Tian Nan Xing") have been used historically to address respiratory conditions, including coughs, phlegm, and sometimes symptoms associated with colds. These uses stem from the plant's reputed effect of "transforming phlegm" and alleviating congestion rather than direct antiviral activity. There is, however, little to no modern scientific evidence demonstrating direct antiviral properties of Arisaema against cold viruses (such as rhinoviruses or coronaviruses). Most available scientific literature focuses on the plant’s toxicology and its traditional processing methods, since raw Arisaema is toxic and must be prepared to reduce its irritant effects. No robust clinical trials or pharmacological studies have confirmed its effectiveness specifically as an antiviral for colds. Thus, the use of Arisaema for colds is primarily justified by tradition, not by scientific validation.

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