1, Scrophularia is rich in nutrients, including alkaloids, sugars, sterols, amino acids, fatty acids, volatile oils, carotene and vitamin A. It has the effects of clearing away heat and cooling blood, detoxicating, resolving hard mass and relieving sore throat. It can be used for the syndrome of epidemic febrile diseases, heat entering blood and heat damaging yin. Scrophularia also has the functions of nourishing yin, promoting fluid production, purging fire and detoxifying.

2. Scrophularia has the effects of purging fire and detoxifying, nourishing yin and promoting fluid production, clearing heat and cooling blood. It can be used for treating various heat syndromes with excessive heat toxin, such as fever, sore throat, conjunctival congestion, furuncle, gangrene, etc. It can also clear away heat, eliminate pathogenic factors and nourish yin, and can be used for dry mouth, dry throat, dry stool and thirst. It can clear blood heat and be used to treat fever. It is often combined with Radix Rehmanniae and Cortex Moutan, such as Qingying Decoction.

3. At the same time, the total flavone aglycone contained in Radix Scrophulariae has the effects of lowering blood pressure, reducing capillary permeability, benefiting gallbladder, calming, lowering blood pressure, strengthening heart, dilating blood vessels and partially anticonvulsant.

4, spleen and stomach deficiency cold, eat less loose stool can't take, also can't eat with veratrum, astragalus, dried ginger, jujube, dogwood.

5, anemia, dizziness, stop drinking cold and heat, fullness, abdominal pain due to blood deficiency, diarrhea due to spleen deficiency, and should not be taken.