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Alpha-blockers, including prazosin, terazosin, doxazosin, or tamsulosin, do not appear to affect all-cause mortality in heart failure rehospitalization in those also receiving β-blockers. [ 23 ] Tamsulosin can also cause retrograde ejaculation , which occurs when semen is redirected to the urinary bladder instead of being ejaculated normally.
"Heart palpitations may lead to fainting or dizziness which, even if it is caused by a benign underlying condition, can still lead to life-threatening trauma such as head trauma and internal ...
Both cardiologists say that there are many causes of heart palpitations, which include physical exertion, stress, anxiety, pregnancy, caffeine, alcohol use, drug use, fever, an overactive thyroid ...
There are some alpha blockers that can give rise to changes in the cardiovascular system, such as the induction of reflex tachycardia, orthostatic hypotension, or heart palpitations via alterations of the QT interval. [28] [31] Alpha blockers that may have these side effects include yohimbine, phenoxybenzamine, and phentolamine. [2]
This is also the case for Tamsulosin and it may be assumed that the others alpha-1 blockers work in a similar manner, since Tamsulosin is an alpha-1-a blocker and Prazosin is an alpha-1 blocker. [30] The risk for floppy iris syndrome during cataract surgery is elevated when the patient is using an alpha-1 blocker.
"Palpitations can mean different things to different people," says Dr. Jay Sengupta, a cardiac electrophysiologist with the Minneapolis Heart Institute at Abbott Northwestern Hospital in Minneapolis.
Beta 1 blockers can also mask catecholamine-triggered neurogenic hypoglycaemic symptoms like tremors and palpitations. [4] Since prolonged hypoglycaemia can cause acute brain damage, it is crucial to monitor and treat this condition promptly. [4]
Other uses may include heart failure and Raynaud syndrome. [7] It is taken by mouth. [6] Common side effects include dizziness, sleepiness, nausea, and heart palpitations. [6] Serious side effects may include low blood pressure with standing and depression. [6] [7] Prazosin is a non-selective inverse agonist of the α 1-adrenergic receptors. [6]