Hypertensive patients can drink fishweed if they have the appropriate indications, but hypertension cannot be treated by drinking fishweed. Fishweed is a kind of traditional Chinese medicine for the dried above-ground parts of Houttuynia cordata, a plant of the family Houttuyniaceae, in the family of Sambucus. It is pungent in flavor, slightly cold in nature, and belongs to the lung meridian. It has the efficacy of clearing away heat and detoxification, diuretic and diuretic. It is mainly used for treating lung carbuncle and spitting pus, coughing with lung heat, heat poisonous sores, and wet-heat gonorrhea. Adverse reactions of Fishwort have a few patients may occasionally experience dizziness, stomach discomfort, burning sensation in the heart fossa after taking the drug. Fishwort injection can cause anaphylaxis. This product contains volatile oil and should not be decocted for a long time. It should not be taken for long time. It is not recommended to take it for cold deficiency and yin evidence of sores and ulcers. From the above, it can be seen that fishweed has no therapeutic effect on hypertension, but if hypertensive patients have the above indications can drink fishweed. If there is a need for medication, need to be used under the guidance of a doctor to identify the evidence, not blindly use their own medication, so as not to cause adverse consequences.