Yahoooooo, my friend survived the flu, really I thought I lost him. He got the flu shot, so we got the flu. I bought the Robintussin at $10.00 and the store brand at $3.99, for many weeks = $50.00 for 2 people. I had to be careful because I take the Tylenol and Ibuprofens. The choking and heart wow, I worked with him, not died. I could not do this naturally. I even use the inhaler that I feel its the only thing that got me well. Good luck for you if you get this flu.