Angelica Si Ni Teapills (Dan Gui Si Ni Wan)Plum Flower Angelica Si Ni Wan Teapills (Dang Gui Si Ni Wan) is a classical Chinese Medicine formula (c. 3rd century) which acts to warm and open the channels, dispel cold, and relieve pain. It was originally created to treat cold stiff hands and feet due to blood deficiency, and also addresses the related symptoms of cold limbs, numbness, cramping, and joint pain; this makes this formula potentially helpful for conditions such as arthritis, Raynauds