Queen Elizabeth Ⅱ of Great Britain is said to regularly take with her on her travels a box containing a medicine made with arsenic and snake's venom.
相識無「白丁」據說英國許多皇室相信自然療法。倫敦每日郵報曾經報導：女王旅行時經常攜帶一個黑色的小盒子，正統派醫生若知道盒中的內容，定會大吃一驚﹘﹘那是由花卉、砒霜、毒蛇液…… 等製成的藥品。