There is no study on the toxicity of half a branch of lotus to liver and kidney. Half a branch of lotus has the effects of dissipating blood stasis and stopping bleeding (clearing stasis and stopping bleeding), clearing heat and removing toxins (clearing heat and toxins from the body), and diuretic to reduce swelling and is used for the treatment of sore throat, etc. It belongs to the family of heat-clearing medicines. It is used for treating sore throat, etc. It is a heat-clearing and detoxifying (removing heat and toxins from the body) medicine in the category of heat-clearing medicines, and is the whole herb of the plant Sempervirens in the family Labiatae. It is also known as the herb of the menstruation. It is pungent, bitter and cold in nature. It enters the lung meridian, liver meridian and kidney meridian. It can be used both internally and externally. It has the effects of dispersing blood stasis and stopping bleeding, clearing heat and removing toxins (removing heat and toxins from the body), diuretic and reducing swelling, and is used in the treatment of sore throat, carbuncle with heat and toxins, carbuncle in the intestine (carbuncle occurring in the internal organs of the intestines and manifesting itself by fever, pain in the right side of the abdomen, and a palpable mass), carbuncle in the lungs, venomous snakebite, scrofula (mainly refers to tuberculosis of lymph nodes of the neck), and bruise and injury. People with blood deficiency should be cautious of using Huperzia serrata. Sempervirens is bitter and cold in nature, and should be used with caution in those with spleen and stomach deficiency (spleen and stomach weakness and cold). The adverse effects of Huperzia serrata are not known. People who are allergic to half a branch of lotus are not allowed to drink half a branch of lotus in water. If necessary, please use under the guidance of a professional Chinese medicine practitioner.