Huanglian is non-toxic, has the effect of clearing heat and drying dampness, diarrhea and detoxification. However, it should be noted that Huanglian is very cold, overdose for a long time is easy to hurt the spleen and stomach, and should not be used by people with cold spleen and stomach. Bitter and dry, easy to injure the yin and fluid, yin deficiency and fluid injury should be used with caution. Patients who are allergic to Huanglian need to be cautious about using it.
Huanglian is bitter and cold in nature, and belongs to the heart, spleen, stomach, gallbladder and large intestine meridians. It has the effect of clearing away heat and drying dampness, diarrhea and detoxification.
Huanglian can be used for the treatment of dampness-heat-induced plumpness (stomach distension and discomfort), vomiting, acid swallowing (swallowing the acid that rushes upward from the stomach to the oropharynx), diarrhea, dysentery, and also for the treatment of heat and toxicity blazing (the body’s fire is too exuberant) caused by fever and dizziness, upset and sleeplessness (the heart is irritable and sullen, the symptom of insomnia), and red eyes and toothache.
The adverse effects of Huanglian have not been clarified, allergy is prohibited, people with cold spleen and stomach and Yin deficiency and fluid injury should be cautious, use this drug under the guidance of a clinician.