The effects of berry on acute respiratory viral infections: A rapid review of clinical studies.

Brief Overview: Collectively the evidence obtained from across five clinical studies involving 936 adults indicate that mono-herbal preparations of L. berry (), when taken within 48 hours of the onset of acute respiratory viral infection, may reduce the duration and severity of common cold and influenza symptoms in adults. There is currently no evidence to support the use of berry for the treatment or prevention of COVID-19.

The effects of on viral respiratory infections in humans: A rapid review.

Brief Overview: Based on the evidence identified in this rapid review, preparations and herbal complex preparations including may be a therapeutic option for treating early symptoms of respiratory tract infections. The best effectiveness for preparations has been proven for coughing, as an expectorant and to reduce the frequency and intensity of cough. Only weak evidence was found for all other researched symptoms.