I have been using this for gan mao. it really stops them in their tracks. last one i only had a few doses remaining in the bottle. the symptoms were minimal while i took the formula. when it ran out, the symptoms worsened some: mild rhinitis, sneezing, body aches. but it passed through quickly and without knocking me out.

Advantages: it's handy to have a quick and easy bottle at home so i don't have to go into the clinic and get herbs when i feel one coming on.

Disadvantages: glycerine, childs formula. i double up the dosage for an adult.