Synopsis

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

Magnolia biondii (Xin Yi Hua), the flower bud of the magnolia tree, has a long history of use in Traditional Chinese Medicine (TCM). It is most commonly employed to treat nasal congestion, sinusitis, and related upper respiratory complaints. However, in some traditional formulations, Magnolia biondii is also used to help relieve cough, especially when associated with dryness or phlegm retention. The rationale in TCM is that Magnolia biondii has properties that can help "disperse wind-cold" and "unblock the nasal passages", which can indirectly ease cough that arises from upper respiratory obstruction or irritation.

There is little to no robust modern scientific research specifically validating Magnolia biondii for the treatment of dry cough. Most available studies focus on its anti-inflammatory, antimicrobial, and antioxidant properties, or its efficacy in treating rhinitis and sinusitis. The traditional use for cough is thus based more on historical practice and the broader TCM theory rather than targeted clinical evidence.

In summary, the use of Magnolia biondii to support or treat dry cough is primarily justified by traditional use, with moderate evidence in the form of historical records and inclusion in classical herbal formulas. Scientific validation for this specific indication remains limited.

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