In Traditional Chinese Medicine (TCM), Shang Lu belongs to the 'Cathartic herbs that drain downward' category. The herbs in this category are those whose main purpose is to treat constipation. They're called 'cathartic' because they have an especially strong effect and should only be used for severe intestinal blockage or gastrointestinal swelling.

Furthermore Shang Lu is Cold in nature. This means that Shang Lu typically helps people who have too much 'Heat' in their body. Balance between Yin and Yang is a key health concept in TCM. Those who have too much Heat in their body are said to either have a Yang Excess (because Yang is Hot in nature) or a Yin deficiency (Yin is Cold in Nature). Depending on your condition Shang Lu can help restore a harmonious balance between Yin and Yang.

Shang Lu also tastes Bitter. The so-called 'Five Phases' theory in Chinese Medicine states that the taste of TCM ingredients is a key determinant of their action in the body. Bitter ingredients like Shang Lu tends to have a cleansing action on the body by clearing Heat, drying Dampness and promoting elimination via urination or bowel movements.

The tastes of ingredients in TCM also determine what Organs and Meridians they target. As such Shang Lu is thought to target the Bladder, the Spleen, the Kidney and the Lung. In TCM the impure water collected by the Kidneys that cannot be used by the body is sent to the Bladder for storage and excretion as urine. The Spleen on the other hand assists with digestion, Blood coagulation and Fluids metabolism in the body. The Kidneys do not only regulate the urinary system but also play a key role in the reproductive system and the growth and aging process of the body. In addition to performing respiration, the Lungs are thought in TCM to be a key part of the production chain for Qi and the Body Fluids that nourish the body.