It is possible to lower blood pressure with nifedipine extended-release tablets alone if the patient’s blood pressure is controlled within the normal range, but if the blood pressure can not be controlled below 140/90 mmHg, a combination of drugs is needed. Nifedipine extended-release tablets are mainly used to lower blood pressure and treat angina. The drug is rapidly and completely absorbed in the gastrointestinal tract when swallowed with water. Due to the extended-release tablet dosage form, its blood concentration in the body lasting smooth, each dose can maintain the minimum effective blood concentration for up to 24 hours, the drug can not be broken or chewed. Adverse reactions such as flushing and increased heart rate may occur with this product, and may cause thickening of the gums in those who take it for a long period of time, and liver function should be monitored during use. Do not terminate the medication at will. Blood pressure needs to be monitored during use to avoid hypotension or poor blood pressure control. Nifedipine is contraindicated in patients who are allergic to the product and in patients with low blood pressure. If you need to use nifedipine extended-release tablets, please use under the supervision of a physician.