Da Huang (Rhubarb Root) – Liquid Extract (Tincture):
Da Huang is the root from any one of three species of rhubarb that all grow naturally in different parts of China. When the leaves turn yellow and wither in the fall, the roots are harvested, cleaned, dried, and sliced for use as medicine.
Da Huang is a strong purgative and is the herb of choice used to address constipation that has as its root cause stagnation and heat, as in the formula Da Cheng Qi Tang (for severe cases) or Mai Zi Ren Wan (for moderate cases).
Use with Caution: Da huang is a strong purgative, and it is recommended to start with a small amount (perhaps 1/2 of a dropper the first time) and wait 2-3 hours to see what happens before moving up to the recommended dosage levels.
Caution #2: DO NOT use this herb if you are pregnant (or think you might be) as it has a strong purgative (i.e. downward) action.