---------- ® of ZEBETA   (Tablets of the fumarato of Bisoprolol) The November of 2010 799-33-100004 Rx only DESCRIPTIONZEBETA (fumarato of bisoprolol) is a 1 synthetic one, beta - agent of blockade (cardioselectivo) selective of the adrenoceptor. The chemical name for the fumarato of bisoprolol is (±) - 1 [4 [[2 ethoxy (1-Methylethoxy)] methyls] fenoxis] - 3 [(1-methylethyl)] - 2-propanol amino (e) - 2-butenedioate (2: 1) (salt). It owns an asymmetric coal atom in his structure and it is provided as it mixes racémica. The enantiómero of S (-) is responsible most of for the activity of beta-I block. Its empirical formula is (NOT of 18 Cs H 31 4) 2 •4 4 Cs H 4 Or and their structure are: The fumarato of Bisoprolol has a molecular weight of 766.It is a white crystalline dust that is approximately also lipofílico hydrophilic and, and is easily soluble in the water, methanol, ethanol, and chloroform.ZEBETA is available like 5 and 10 tablets of magnesium for the oral administration. The inactive ingredients include maize the colloidal starch, silicon dioxide, Crospovidone, phosphate of dibásico calcium, Hypromellose, estearato of magnesium, microcrystalline cellulose, polythene glycol, polisorbato 80, and the tablets of magnesium of the titanium Dioxide.The 5 also contain red and yellow iron oxide. CLINICAL PHARMACOLOGYZEBETA is a 1 beta - agent of blockade (cardioselectivo) selective of the adrenoceptor without stabilizing activity of the significant membrane or intrinsic simpaticomimética activity in their therapeutic range of the dosage. Cardioselectivity is not absolute, nevertheless, and in higher doses (& GT; ) the fumarato of bisoprolol 20mg also inhibits 2 beta - the adrenoceptores, located mainly in the bronchial and vascular musculatura; in order to conserve selectivity more loss is therefore important to use the effective dose. The absolute bioavailability of the farmacinética and MetabolismThe after an oral dose of magnesium 10 of the fumarato of bisoprolol is on 80%.Absorption is affected by the food presence. The first metabolism of the passage of the fumarato of bisoprolol is on 20%.Binding to serum proteins is concentrations of the plasma 30%.Peak happens approximately within 2-4 hours of dosage with magnesium 5 to 20, and means that the maximum values extend from 16 ng/mL in 70 magnesium 5 to ng/mL in magnesium 20. The once daily dosage with the fumarato of bisoprolol less gives rise than twice to the variation of intersubject in maximum levels of the plasma. The period of the elimination of the plasma he is 9-12 hours and it is slightly more length in patients majors, partly due to the diminished renal function in that population. Of stationary state it is obtained within 5 days of once daily dosage. In young populations and majors, the accumulation of the plasma is low; the factor of the accumulation extends from the 1,3, and is what would be waited for of the first kinetic one of the order and the once daily dosage. The concentrations of the plasma are proportional to the dose administered in the range of magnesium 5 to 20. The characteristic pharmacokinetics of both enantiómeros are similar. The fumarato of Bisoprolol is also eliminated by renal and not-renal ways with near 50% of the dose that appears without changing in the urine and the rest that appear under the form of inactive metabilitos. In human beings, the known metabilitos are unstable or they do not have any known pharmacological activity. Except the one of 2% of the dose it is excreted in lees. The fumarato of Bisoprolol is not metabolizado by the cytochrome P450 II D6 (hidroxilasa of debrisoquin). In subjects with the separation of creatinine less than 40 mL/min, the period of the plasma is approximately triple flood compared to the healthy subjects. In patients with the cirrhosis of the liver, the ZEBETA elimination (fumarato of bisoprolol) is more variable in tariff and perceivably slower than that one in healthy subjects, with the period of the plasma extending from the 8. PharmacodynamicsThe that the majority of the prominent effect of ZEBETA is the negative cronotrópico effect, giving by result a reduction in heart rate of the reclinación and the exercise. There is a fall in of the reclinación and the exercise with little change observed in volume of movement, and only a small increase in the correct atrial pressure, or the pressure of hair wedge pulmonary cardiac volume at rest or during exercise. Results in short term clinical haemodynamics the studies with ZEBETA are similar to those observed with other agents of beta-I block. The mechanism of the action of its effects of antihypertensive has not settled down totally. The factors that can be implied include: Cardiac volume handicapped, inhibition of the launching by the kidneys, diminution of renina of the tonic comprehensive exit of the vasomotor centers in the brain. In normal volunteers, the ZEBETA therapy gave rise to a reduction of the tachycardia of the exercise and induced by isoproterenol. The maximum effect happened within 1-4 hours of post-dosage. The effects persisted by 24 hours in the equal doses to or major magnesium of 5. The studies of electrophysiology in man have demonstrated that ZEBETA diminishes heart rate perceivably, increases recovery time of the node of but, it prolongs refractory periods of the node of the American system of pesos, and, with the fast atrial stimulus, prolongs the nodal conduction of the American system of pesos. 1 beta - the ZEBETA selectivity has been demonstrated in studies of the animal and the human being. No effects in the therapeutic doses in 2 beta - the densidad of the adrenoceptor has been observed. The pulmonary studies of the function have been conducted in volunteers, asthmatics, and healthy patients with the pulmonary disease obstructora chronicle (COPD). The doses of ZEBETA extended from the 5 to magnesium 60, to atenolol from the 50 to 200 magnesium, to metoprolol from the 100 to magnesium 200, and propranolol from the 40 to magnesium 80. In some studies, slight, asymptomatic increases in the resistance of aerial routes (AWR) and diminutions of the volume expiratorio forced (FEV 1) were observed with the doses of magnesium of fumarato 20 of bisoprolol and higher, similar to the small increases in AWR also it observed with the other cardioselectivos betabloqueadores. The changes induced by beta-I block with all the agents were invested by the bronchodilator therapy.ZEBETA had minimum effect on lipids of the serum during antihypertensive studies,8% for the fumarato-treated patients bisoprolol, and +0.Changes in triglycerides made an average of +19% for the fumarato-treated patients bisoprolol, and +17% for placebo.ZEBETA (fumarato of bisoprolol) also have occurred concomitant with magnesium of thiazide diuretics.25) were found to be additive with the fumarato of bisoprolol in the loss of the arterial pressure in patients with the smooth-to-moderate hypertension. CLINICAL STUDIESIn two at random selected lead the placebo-controlled tests of double anonymity in the U.24 that the hours after dosing in patients with the smooth-to-moderate hypertension is demonstrated down. In both studies, diastolic the systolic arterial pressures/of means in the basic line were approximately 150/100 millimeter hectogram, and the heart rate of means was bpm 76. The effect of the drug is calculated reducing the effect of placebo of the total change in the arterial pressure and the heart rate. zebeta (wholesale and sale retail) - quality medications superior in the low prices very.

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