Not the same formula but I’ve taken Gan Mao Ling both as a prophylactic and a cure for cold and flu many times. Knocks respiratory viruses right out if taken at the first symptoms.
That looks interesting.
I’ve often used Boiron’s Oscillococcinum when I’ve felt cold or flu symptoms coming on. I’m convinced that it greatly shortens the misery, and I swear by it.
But it’s homeopathic, and would probably get the same short shrift here that other natural things do.