1 teaspoon grated fresh ginger, or 1-2 lumps of preserved ginger, chopped. In Oklahoma, pharmacists are required to obtain a valid photo identification before dispensing any controlled, dangerous substance. Instead, I simply copied the web link and pasted it into my browser window, and came up with exactly what I knew I would- another "Canadian Pharmacy" web site. http://ru.ph-ed-plus.nspu.ru/article/17754