Evidence supporting the use of: Pyrrosia
For the health condition: Dehydration

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Synopsis

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

Pyrrosia, particularly Pyrrosia lingua, is a fern commonly used in Traditional Chinese Medicine (TCM). In TCM, it is known as "Shi Wei" and has historically been used to treat conditions associated with "heat" in the body, including promoting urination and alleviating symptoms of thirst and urinary difficulty. The rationale for its use in supporting or treating dehydration comes from its traditional role in clearing heat and generating fluids, as described in classical texts. There are documented uses of Pyrrosia in herbal decoctions intended for individuals experiencing thirst due to febrile diseases or heat-induced fluid loss, which aligns with some aspects of dehydration.

However, there is limited scientific evidence directly supporting Pyrrosia’s efficacy for treating dehydration by modern medical definitions. Most available research focuses on its diuretic, anti-inflammatory, or antioxidant properties, rather than fluid repletion. The evidence rating is therefore moderate in terms of traditional use (2/5), reflecting well-established historical practices within TCM, but not substantiated by robust clinical trials or modern pharmacological studies specifically addressing dehydration. Anyone considering herbal remedies for dehydration should consult a healthcare provider, as proper hydration typically requires medical-grade fluid replacement rather than herbal intervention.

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