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Serious side effects may include low blood pressure or heart attack. [10] Whether use is safe during pregnancy or breastfeeding is unclear. [2] [10] When used by people with liver problems, and in elderly individuals, doses should be reduced. [10] Amlodipine works partly by vasodilation (relaxing the arteries and increasing their diameter). [10]
Elevated heart rate can result in significantly higher "cardiac work", which can result in symptoms of angina. The class of CCBs known as dihydropyridines mainly affect arterial vascular smooth muscle and lower blood pressure by causing vasodilation.
Most people who have taken too much of a calcium channel blocker, especially diltiazem, get slow heart rate and low blood pressure (vasodilatory shock). [1] This can progress to the heart stopping altogether. [2] CCBs of the dihydropyridine group, as well as flunarizine, predominantly cause reflex tachycardia as a reaction to the low blood ...
Evidence suggests that a reduction of blood pressure by 5 mmHg can decrease the risk of stroke by 34% and of ischaemic heart disease by 21%. It can reduce the likelihood of dementia, heart failure, and mortality from cardiovascular disease. [2] There are many classes of antihypertensives, which lower blood pressure by different means.
A lower resting heart rate or slower heartbeat will fill the ventricles/heart better and allow for more of a forceful contraction of blood out to the rest of the body, says Dr. Weinberg.
Compared with certain other L-type calcium channel blockers (for example those of the phenylalkylamine class such as verapamil) that have significant action at the heart, the dihydropyridine calcium channel blockers lower blood pressure mainly by relaxing the smooth muscle of the blood vessel walls. [3]
By reducing sympathetic stimulation of the heart, beta blockers decrease heart rate, blood pressure and cardiac output, and hence heart oxygen consumption. Beta-blockers alleviate ischemic pain, and have also been proved to reduce the size of infarcted heart muscle, the risk of arrhythmias , and the proportion of patients with acute coronary ...
High blood pressure is caused by the force of blood flow in the arteries being too high. The DASH diet includes heart-healthy foods that lower blood pressure. 21 foods that lower blood pressure ...