Felodipine belongs to the calcium ion antagonist class of antihypertensive drugs, this type of antihypertensive drugs antihypertensive effect is relatively good, belongs to the long-acting antihypertensive drugs, especially for elderly patients with coronary heart disease, angina population after oral administration can not only lower the pressure, improve coronary spasm, can also improve the symptoms of angina, elderly patients oral administration of this antihypertensive drugs more suitable. Younger patients usually have a high low pressure, the pulse pressure difference is relatively small, this type of drug to lower blood pressure is also relatively strong, you can also choose felodipine extended-release tablets. The adverse effects of these drugs are mainly reflex heart rate increase, facial flushing, bilateral lower limb edema, etc. If the above adverse effects occur, consider replacing other oral drugs, such as angiotensin-converting enzyme inhibitors, clinically used like Lortinexin.