Evidence supporting the use of: Waterhyssop
For the health condition: Cough (spastic)

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Synopsis

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

Waterhyssop (Bacopa monnieri) is an herb widely used in Ayurvedic medicine, primarily as a cognitive enhancer and nervine tonic. However, traditional texts and ethnobotanical sources also document its occasional use for respiratory complaints, including coughs—particularly those described as "spastic" or associated with bronchial irritation. In Ayurveda, Bacopa is considered to have expectorant and anti-inflammatory properties, and it is sometimes included in formulations aimed at soothing the throat and reducing cough reflexes, although it is not a primary anti-tussive herb.

Despite its traditional use, scientific evidence supporting waterhyssop's effectiveness specifically for spastic cough is minimal. Most pharmacological research focuses on its neuroprotective, anxiolytic, and antioxidant effects, rather than respiratory actions. Some preclinical studies suggest that Bacopa monnieri extracts possess anti-inflammatory and antispasmodic properties, which could theoretically benefit coughs characterized by bronchospasm, but these findings are not directly linked to clinical outcomes in humans with cough. No controlled human trials specifically address its use for cough or bronchospastic conditions.

In summary, waterhyssop's use for spastic cough is rooted in traditional medicine, with only limited and indirect scientific support from preclinical studies. Its rating is low due to the lack of robust clinical evidence.

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