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Calcium channel blockers (CCBs) are a class of drugs and natural substances that disrupt the calcium (Ca) conduction of calcium channels. It has effects on many excitable cells of the body, such as cardiac muscle, i.e. heart, smooth muscles of blood vessels, or neurons. Drugs used to target neurons are used as antiepileptics and are not covered in this article. The main clinical usage of calcium channel blockers is to decrease blood pressure. It is for this action that they are used in individuals with hypertension. From Wikipedia under the
GNU Free Documentation License What is the difference between calcium channel blockers and beta blockers? Q. I've heard on the news that they have been testing and found that calcium channel blockers and Ace inhibitors are best used to fight high blood pressure. I take a beta blocker Atenolol and HZT (Hydrchlorothiazide) for hypertension. Is this the same thing? Of course I will follow this up with my doctor next week but would like some laymen input. Asked by Hard Hearted Hanna - Tue Apr 1 16:28:21 2008 - - 3 Answers - 0 Comments A. Varies from case to case, Ace inhibitors are more on prescription list, However Calcium channel blockers are given as they prevent SVT (Speedy heart rate). Your case seems to be of CCF and uncontrollable blood pressure, wuth low working capacity of heart(EF). However your doctor is the best judge , he might omit Beta blocker if necessary. Nothing to worry, you are going to be alright. Answered by L_H Qutub(Retired) - Sat Apr 5 12:39:18 2008 Coming off beta blockers onto calcium channel blockers? Q. My doctor is taking me of 5mg bisoprolol and onto 40mg verapamil. The reason why I am on the bisoprolol is because mu heart can sometimes beet fast and sometimes irregular. What is the differences I will notice from moving from a beta to a calcium blocker? Doc thinks none but I am sure there must be something? Thanks. Asked by Aaron - Thu Nov 19 13:58:22 2009 - - 3 Answers - 0 Comments A. A calcium channel blocker will lower your blood pressure just as effectively but won't slow your heart rate as much. Your doctor may have switched you because your blood pressure was still high on the beta blocker but didn't want to increase the dosage because he was worried about slowing your pulse too much. Or he may have realized that you have diabetes and calcium channel blockers are better in that case. And he's right, you probably won't notice any effect whatsoever. My question to you though is, why the hell don't you just ask your doctor this question? Are you simple or something? Answered by Tony M - Thu Nov 19 15:03:11 2009 calcium channel blocker....act on heart, verapimil?
Q. what part of heart, or if whole heart Asked by tigerforcebutcher - Thu Jul 13 00:18:40 2006 - - 3 Answers - 1 Comments A. Okay, so here's the poop on calcium channel blockers, namely verapamil... - How they work, Part 1: Calcium channel blockers...well...they block calcium from going into the cells. This keeps certain muscular cells, especially, in this case, smooth (involuntary) muscle cells of the certain blood vessles from contracting. The effect is that large coronary arteries, coronary arterioles and other arterioles (smaller blood vessels than arteries) throughout the body relax and get somewhat bigger. Thus, with bigger "pipes", more blood can be delivered especially to the heart muscle. In addition, because of this same mechanism, it doesn't take as much work to pump the same amount of blood through the body...because, again, the arterioles… [cont.] Answered by MDMMD - Thu Jul 13 01:18:28 2006 From Yahoo Answer Search: "Calcium channel blocker"  baylorhealth.edu 443px x 575px | 4.50kB [source page] review because of the incidence of arrhythmias associated with the use of this drug The Table summarizes the approved indications for each agent 1 2 Dihydropyridine CCBs inhibit both calcium uptake into smooth muscle cells and mobilization from intracellular stores This leads to vasodilation by  edition.cnn.com 237px x 180px | 9.20kB [source page] Isradipine also sold under the brand name DynaCirc is a so called calcium channel blocker Such drugs interfere with the positive reinforcement you get from drinking alcohol says Edward DeMet of the University of California at Irvine Isradipine may also help control addictions to cocaine and amphetamines researchers say The study into more effective ways to  phassociation.org 232px x 359px | 17.00kB [source page] is prognostic12 13 although recent studies suggest that it be performed only in selected subgroups of PAH 14 The presence of pulmonary vasoreactivity predicts the response to long term calcium channel blocker CCB therapy From Yahoo Image Search: "Calcium channel blocker" |
