The main effects of safranin are bacteriostatic, treatment of hypertension and prevention of cardiovascular diseases. 1. Anti-bacterial: Huanglianin contains a kind of alkaloid, which is extracted from plants such as Huanglian, Phellodendron Bark, Three Needles, etc., and has significant anti-bacterial effect. 2. Treatment of hypertension: Huanglianin can not only reduce the content of cholesterol in the liver, but also enhance the activity of superoxide dismutase in the liver, so it is also effective in the treatment of hypertension. 3. Prevention of cardiovascular diseases: Berberine can increase the effect of acetylcholine through anticholinesterase, which can dilate blood vessels and prevent cardiovascular diseases. This product contains berberine hydrochloride, after inquiry: oral adverse reactions are less, occasionally nausea, vomiting, skin rash and drug fever, disappear after stopping the drug. It is contraindicated in patients with hemolytic anemia and glucose-6-phosphate dehydrogenase deficiency. Caution should be exercised during the first trimester of pregnancy. In case of overdose or serious adverse reactions, seek immediate medical attention. Contraindicated for those who are allergic to the product, and caution should be exercised for those who are hypersensitive to the product. Take under the supervision of a physician.