Expand blood vessels and lower blood pressure. Telmisartan belongs to angiotensin receptor antagonist. In clinical application, it can mainly antagonize angiotensin receptor, expand blood vessels and reduce blood pressure, so it is mainly suitable for patients with primary hypertension. Common dosage for adults: 1-2 capsules three times a day. For patients with mild or moderate renal insufficiency and the elderly, if they take the drug, they generally do not need to adjust the dose, but if they have serious liver and kidney insufficiency, they often need to reduce the dose. During the course of medication, other adverse reactions may occur, leading to vascular edema, and gastrointestinal symptoms, such as nausea, vomiting, abdominal distention, and decreased appetite. If you are allergic to this drug, it is forbidden to use it. Pregnant women and lactating women are forbidden to use it.