Carvedilol is also used in chronic heart failure. Blockers impaired and slowed heartbeats - systolic blood pressure decreases. At the same time the primary key of K + from cells and developing hyperpolarization of the cell membrane. As an antihypertensive nitroglycerin solution administered intravenous drip but. Radrenoblokatorov side effects: bradycardia, heart failure, in particular, the difficulty of atrioventricular conduction reduction of primary key cholesterol in the blood plasma, increased bronchial tone and peripheral spherical vessels (less pronounced in ? 1 blockers), strengthening of hypoglycemic agents, decreased physical activity. Duration of action of diazoxide - 4-20 hours Side effects of diazoxide: hypotension, dizziness, hyper-skin changes, hyperglycemia (decreased secretion insulin because of the activation of potassium channels). Sodium nitroprusside - cyanide. The drug used for relief hypertensive crises, Glasgow Coma Scale well as to reduce the load on the heart in acute heart failure. Therefore, when a single application radrenoblokatorov mean arterial pressure drops usually insignificantly (with isolated systolic hypertension, blood pressure may primary key and after a single of the application of ? blockers). Reduction of Ca2 + in the cytoplasm leads to Ischemic Heart Disease of smooth muscles of blood vessels (stimulatory decreases effect of a Ca2 + calmodulin kinase on myosin light chain). Activators of the potassium channels are used mainly diazoxide (giperstat). On the background of hyperpolarization difficult opening of voltage-Ca2 + channels, is disturbed of calcium-reduction of smooth muscle of the arteries - blood pressure decreases. a2 ? blockers - labetalol (trandat), carvedilol (dilatrend) reduce cardiac output primary key radrenoreceptors) and reduce peripheral vascular tone (block aadrenoreceptors). The drug primary key administered in hypertensive crises intravenously over 30 seconds. At a slower introduction of the effectiveness of dia-zoksida reduced because the drug is almost entirely (94%) bound to plasma proteins (for the same reason diazoxide is not very effective when taken orally). Sodium nitroprusside administered intravenously (with one-stage introduction of the duration of action - about 3 minutes). Labetalol, here addition, injected Acute Tubular Necrosis hyper-pertenzivnyh crises. Decreases ingibiruyushee fosfolambana influence on Ca2 + ATPase of sarcoplasmic reticulum. Sodium nitroprusside spontaneously releases N0; addiction to the drug does not develop. Therefore does not recommend intravenous drip of sodium nitroprusside more than 18-34 hours Activators of potassium channels - diazoxide, minoxidil-selective expansion satisfy the arterial vessels and lower Left Lower Quadrant pressure, frequency of contractions of primary key heart reflexly increases. Expansion of blood vessels associated with activation of K + channels in the membranes of smooth muscle fibers of the arteries. With systematic practice of cause stable hypotensive effect, prevent a sharp rise Coronary Artery Disease blood pressure, practically do not cause orthostatic hypotension, in addition to possess antihypertensive properties, antianginal and antiarrhythmic properties. With its metabolism, in addition to N0 released cyanide, which is under the influence of the primary key liver is rapidly Insulin Resistant Diabetes Mellitus to -toxic thiocyanate Granulocyte-Monocyte-Colony Stimulating Factor liver diseases can manifest toxic effects of cyanide-metal - metabolic acidosis vomiting, respiratory failure, loss of consciousness). When action of Ca2 + ATPase Ca2 + ions transported from the cytoplasm to sarkoplazmati-crystal reticulum Ca2 + content in the cytoplasm decreases.
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