In a clinical trial, flu patients given Sambucol recovered on average 4 days earlier, in 3.1 days compared to 7.1 days for those given placebo, when taken within 48 hours after onset of symptoms.(1)
Another clinical trial reported that almost 90% of flu patients receiving Sambucol showed a significant improvement in Influenza B symptoms, including fever, and were symptom free within two to three days, as compared to at least six days with placebo.(2)
Scientific discoveries from in vitro studies have stipulated that the antiviral activity of Sambucol inhibits hemagglutinin and can help relieve flu symptoms, by helping to reduce reproduction of several influenza viruses when taken within 48 hours after onset of symptoms.(2),(3), (4)
(1) Zakay-Rones etal. J Int Med Res.2004;32(2):132-40.
(2) Zakay-Rones etal. J Alt Compl Med.1995;1(4):361-9.
(3) Balasingam S, etal. In IV International Conference on Influenza, Preventing the Pandemic, Bird Flu Vaccines. London, June 23–24. 2006.
(4) Catchpole A, Balasingam S. Retroscreen Virology. (2)2010,pp.1-8.