Both of these drugs are calcium channel blockers and are first-line long-acting antihypertensive drugs. The biggest advantage of Povidon over Bexin is that it can be used in patients with heart failure, because it is a calcium channel blocker without negative inotropic effects. This drug is also widely used in clinical practice. The antihypertensive effect is relatively potent, and generally speaking, it uses a slow-release technology, which means that the drug will slowly release its blood concentration in the body. And nifedipine controlled-release tablets, also known as Bexin Tong, it is the use of controlled-release technology, the release of blood concentration is to control the release of time nodes, these two drugs have their own advantages.