Evidence supporting the use of: Onosma bracteatum
For the health condition: Colds (with fever)

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Synopsis

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

Onosma bracteatum, commonly known as "Gaozaban" or "Bugloss," has a long history of use in traditional systems of medicine, particularly in Unani and Ayurvedic medicine, for the treatment of colds accompanied by fever. Historical texts and ethnobotanical surveys report its use as a demulcent, expectorant, and febrifuge, believed to soothe coughs, reduce throat irritation, and help bring down fevers. The plant is frequently incorporated into polyherbal formulations prescribed for respiratory ailments, including colds and associated symptoms such as fever and sore throat.

However, while traditional usage is well documented, the scientific evidence directly supporting its efficacy for colds with fever is limited. Some in vitro and in vivo studies have demonstrated anti-inflammatory and antioxidant properties of Onosma bracteatum extracts, which could theoretically contribute to symptom relief in febrile colds, but these studies are preliminary and do not directly evaluate clinical outcomes in humans with colds or fever. There are also reports of antimicrobial activity, but again, these are not specific to cold viruses or clinical scenarios.

In summary, the use of Onosma bracteatum for colds with fever is primarily grounded in traditional medicine practices, with a modest level of supportive evidence (rating: 2) given the lack of robust, direct clinical studies validating this indication.

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