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Doctor insights on: Beta Blockers And Public Speaking

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Are beta blockers & calcium channel blockers truly contradicted in Wolff-Parkinson-White patients?

Are beta blockers & calcium channel blockers truly contradicted in Wolff-Parkinson-White patients?

Yes: In patients with wolff-parkinson-white especially those who have a history of atrial fibrillation or flutter, beta blockers and calcium channel blockers, which are av nodal blocking agents especially Diltiazem and verapamil, should be avoided. ...Read more

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Do any beta blockers act on Central Nervous System? Labetalol, Propranalol? What about Alpha-1 blockers?

Do any beta blockers act on Central Nervous System?  Labetalol, Propranalol? What about Alpha-1 blockers?

Yes, most of them: Beta blockers are either water soluble or lipid soluble. The latter cross the blood-brain barrier and act on the CNS (central nervous system). Atenelol and Naldolol are 2 water soluble ones that do not readily cross into the brain. Alpha blockers generally do act on the CNS, and the 2 most common side effects are hypotension and dizziness. ...Read more

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Is Cardura (doxazosin) a reasonable second BP drug with Lisinopril when CCBs, diuretics, beta blockers are not well tolerated? Also on B-agonists for asthma.

Is Cardura (doxazosin) a reasonable second BP drug with Lisinopril when CCBs, diuretics, beta blockers are not well tolerated?  Also on B-agonists for asthma.

Yes, it is an option: Cardura (doxazosin) or another alpha blocker type drug is an option when the other classes of drugs mentioned are not well tolerated. Alpha blockers can cause dizziness so they are best taken at night to minimize this effect. The dose needs to be increased slowly. Make sure you are exercising and minimizing salt, alcohol and caffeine as well. ...Read more

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Are beta blockers propranolol just as good at treating hypertension as ACE inh lisinopril

Not the first choice: According to the newest JNC guidelines, beta blockers are not the first choice for treating hypertension. If you have conditions like portal hypertension, panic disorder, or chronic migraine headache along with hypertension, then the doctor may choose propanolol to treat two conditions with just one medicine. ...Read more

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Benefits of the selective beta blocker toprol (metoprolol) for heart failure/ cardiomyopathy?

Benefits of the selective beta blocker toprol (metoprolol) for heart failure/ cardiomyopathy?

Reverses Ht Failure: Toprol xl (specifically that formulation, not metoprolol tartrate) and Carvedilol (generic or Coreg (carvedilol) brand name) have been shown in large, well controlled clinical trials to slow and sometimes reverse the damage of heart failure. They operate by blocking a malfunctioning feedback loop of hormones and signaling molecules, ultimately by blocking the effect of adrenaline on the heart. Good question! ...Read more

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Beta blockers for anxiety/migraines, does this work?

Beta blockers for anxiety/migraines, does this work?

No/Yes: Beta blockers do not help symptoms of anxiety. Sometimes they will blunt the effect stress may have on your heart by blocking the same receptors that 'adrenaline-like' hormones work on. There has been many years of use to prevent migraines, particularly with propanolol which is an older generation of beta blockers. They have been known to reduce migraines. ...Read more

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Can beta blockers such as propranolol or toprol (metoprolol) help prevent ventricular fibrillation in susceptible individuals?

Can beta blockers such as propranolol or toprol (metoprolol) help prevent ventricular fibrillation in susceptible individuals?

Beta Blockers: Yes. Beta blockers are antiarrythmic medications as well as an anti-hypertensive medication. It counteracts the effects of catacholamines like Epinephrine which can cause tachycardia, hypertension and in susceptible individuals ventricular fibrillation. ...Read more

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Are beta blockers alone effective in vasodilation around the heart or is combination therapy neccessary, i.e. ace-inhibitors, calcium blockers, etc?

BB not vasodilators: The medicines you mention act in three different ways and depending in what you are trying to achieve they can be used separately or together for a variety of conditions, from hypertension to even heart failure (although cal antagonists not recommended for the latter). But beta blockers are not vasodilators ...Read more

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Is cilindipine 5 mg a calcium channel blocker or beta blocker. Does it have any effect on lowering heart rate?

Is cilindipine 5 mg a  calcium channel blocker or beta blocker.
Does it have any effect on lowering heart rate?

It is a long: acting calcium channel blocker indicated for the management of hypertension. It will also lower the heart rate a small amount. It is less likely to produce peripheral edema as a side effect than some other calcium channel blockers. ...Read more

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Is beta blocker or calcium channel blocker safer in 1st trimester pregnancy?

Is beta blocker or calcium channel blocker safer in 1st trimester pregnancy?

Calcium blocker: Calcium channel blockers are often used for the management of hypertension in pregnancy. Beta blockers are classified as pregnancy category c, meaning that they have not been systematically studied. Although both classes of medications are used in pregnancy, calcium channel blockers are likely to be safer. ...Read more

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Are beta blockers or Lexapro (escitalopram) better for anxiety.Thanks?

Are beta blockers or Lexapro (escitalopram) better for anxiety.Thanks?

Anxiety: Each have their benefits but Lexapro (escitalopram) is used primarily for anxiety and depression. Beta blockers have multiple functions, anxiety being one. It looks like your physician in trying multiple medications to give you more help throughout the day and treat on multiple fronts (which is a good idea). ...Read more

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Is nadolol (corgard) as effective as propranolol (inderal, innopran xl) in treating social anxiety?

Is nadolol (corgard) as effective as propranolol (inderal, innopran xl) in treating social anxiety?

NO: In theory, the answer is no because it doesn't cross the blood brain barrier as readily as propranolol. Nonetheless, it does block the catecholamine (adrenalin) response to stress/anxiety so it will still help and we all respond in our own unique way to every medicine so it may be excellent for some people. ...Read more

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Are beta-blockers effective for syncope?

Are beta-blockers effective for syncope?

No good data: A randomized trial showed that there is no statistically significant benefit to beta blockers in the treatment of syncope. That said, many cardiologists still use beta blocker to treat patients. ...Read more

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How are calcium channel blockers and beta blockers different?

How are calcium channel blockers and beta blockers different?

Blockers: The cell membranes have receptor sites(like plug outlets)for various drugs. The calcium blockers block the calcium channel plugs and the beta blockers block the beta receptor plugs. Each drug type has different effects but both lower blood pressure and have other effects. ...Read more

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What water soluble beta blockers are as strong and effective as inderal (propranolol)?

What water soluble beta blockers are as strong and effective as inderal (propranolol)?

Beta Blocket: Regarding potency and effectiveness of beta blocking agents, after propranolol, my choice would be atenolol. Atenolol is equally effective across all indications as propranolol. Two added advantages of atenolol are its long half life which allows for most patients to be treated with once daily dosing. Its .Water solubility, does not allow CNS entry, thus markedly reducing CNS adverse effects. ...Read more

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What is the drug of choice for controlling pacs and afib? Calcium channel blocker or beta blocker?

PACs and afib: Of these two usually beta blockers are better tolerated and have a somewhat lower side effect profile. There are also some who feel that beta blockers are better at preventing afib. ...Read more

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Does an adrenaline surge (from anxiety or exercise) when taking a non-selective B-blocker cause coronary vasoconstriction? Selective B1-blckr better?

Does an adrenaline surge (from anxiety or exercise) when taking a non-selective B-blocker cause coronary vasoconstriction?  Selective B1-blckr better?

Beta blockers: B blockers are used to treat angina caused by coronary disease, and they are effective. They reduce heart rate and the workload of the heart, including response to exercise. With very high norepinephrine conditions, eg. pheochromocytoma, blocking beta can cause unopposed alpha and raise BP. But that is a very rare condition. ...Read more