This is an OTC that I gave on my own family on a monthly basis. Even my small 2 yr. old child. After a few months, I then went to bimonthly, tapering down and eventually off. I do not sell this product, although, I can tell you that you can pick it up at any pharmacy, especially Walgreen’s in the band aid isle. I am not liable for your misuse of this product, nor any type of results by taking it. I am simply sharing what helped us!