Marco Polo went to China...for the Rhubarb!
In Marco Polo's time, everyone knew about using Chinese rhubarb for occasional constipation. Chinese rhubarb rhizome (different from rhubarb the food) was the most sought after herb of its time and a big reason for East-West trade for almost a thousand years. Dr.Shen's Rhubarb is an herbal blend that brings out the best qualities of Chinese rhubarb. It's a tonic (strengthening) formula with mild laxative effect. If constipation does last more than a week, it is prudent to consult a physician. Using this or any laxative during pregnancy should be avoided.

SOURCE: Shen Shi Zun Sheng Shu (Master Shen's Book for Revering Life), by Shen Jin-Ao, 1773 AD, and Pi Wei Lun (Treatise on the Spleen and Stomach) by Li-Ao, 1249 AD

Ingredients:
Rhubarb Rhizome, Rhei Rhizoma Da Huang
Chinese Foxglove Root, Rehmannia Glutinosa Radix, Sheng Di Huang
Ophthipogon Tuber, Ophiopogonis, Tuber, Mai Men Dong
Tang Kwei Root, Angelica Sinensis, Dang Gui
Peach Seed Kernel, Persica Semen, Tao Ren
Unripe Bitter Orange, Citri Immaturus Fructus, Zhi Ke