板蓝根能预防感冒吗？

Core Viewpoint - The article discusses the efficacy and limitations of Banlangen (Isatis root) in preventing and treating colds, emphasizing its traditional use in Chinese medicine and the lack of substantial clinical evidence supporting its antiviral properties [1][2][3]. Group 1: Efficacy of Banlangen - Banlangen is recognized for its antiviral and antibacterial properties, with some studies indicating its active components can inhibit certain viruses in vitro, but these findings have not been confirmed in human clinical trials [1][2]. - The immune modulation effect of Banlangen is highlighted as a key aspect of its pharmacological activity, enhancing the body's defense mechanisms while preventing excessive inflammatory responses [1]. Group 2: Limitations and Risks - The antiviral effects of Banlangen are limited, with no high-quality clinical evidence supporting its use against influenza or other viral infections, and it is not recommended by the World Health Organization (WHO) as a primary antiviral medication [2]. - Banlangen is suitable only for specific types of colds, particularly wind-heat colds, and may exacerbate symptoms in cases of wind-cold colds or bacterial infections [2]. - Potential adverse reactions include allergic responses, gastrointestinal discomfort, and possible liver and kidney function impacts, necessitating caution in certain populations [2]. Group 3: Recommendations for Use - Banlangen may be used as an adjunct treatment for mild wind-heat colds, but medical attention is advised if symptoms persist beyond three days [4]. - Individuals with allergies, pregnant women, infants, and those with liver or kidney issues should use Banlangen under medical supervision [4]. - Caution is advised when combining Banlangen with Western medications, with recommendations to space doses by at least two hours to avoid interactions [4].