Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Clerodendrum trichotomum, also known as Harlequin Glorybower, has a history of traditional use in East Asian herbal medicine, particularly in China and Japan. Traditional texts and ethnobotanical surveys indicate that various parts of the plant—especially the leaves and roots—have been used in decoctions or poultices for treating respiratory ailments, including cough, asthma, and symptoms consistent with lung congestion. The rationale in folk medicine is typically based on the plant’s perceived anti-inflammatory and expectorant properties. However, scientific validation for these effects is limited. While some phytochemical studies have identified the presence of flavonoids, saponins, and other compounds with potential anti-inflammatory or antitussive activities, there are very few experimental or clinical studies directly evaluating its efficacy in treating lung congestion in humans or animal models. Therefore, the use of Clerodendrum trichotomum for lung congestion is primarily justified by tradition, with only preliminary pharmacological evidence and no robust clinical trials. The overall evidence rating is moderate for traditional support, but low for scientific validation.

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