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Coreg Carvedilol 6,25 3,12, 12,5, 25 mg
Most popular brand: Coreg
Active ingredient: Carvedilol
Available dosage forms: 6,25 3,12, 12,5, 25 mg
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Carvedilol general information

Carvedilol is in several drugs called beta-blockers. Protective effects of carvedilol within the myocardium. Learn some techniques below as a way to keep an appropriate dose of caffein in your system. You might need to stop utilizing the medicine for a brief time.

More than 7100 monographs are supplied for prescription and over-the-counter medications, also for corresponding brand-name medications, herbals, and supplements. Although carvedilol might interact with other medications, causing an increase or decline in serum rates of both carvedilol along with the other medications, routine measurement of serum rates of carvedilol isn’t done. Moreover, ACE inhibitors decrease plasma degrees of norepinephrine. This effect doesn’t occur with carvedilol.

There are lots of diverse strengths of tablet. The tablets aren’t scored and splitting isn’t possible. Carvedilol blocks beta receptors that are located within the heart. Your child must not chew the tablet.

Take carvedilol at the similar time daily. You definitely should not breast-feed while you’re taking carvedilol. In case it is almost time for your subsequent dose, forget the missed dose and keep with your typical dosing schedule. There are really no adequate studies to learn how carvedilol might affect you if you’re pregnant.

You definitely should not stop using carvedilol suddenly. Just Take the missed dose when you remember. If you remember after that period, don’t provide the missed dose. In case your child requires a dose that is certainly under a complete tablet, the tablet could be crushed and stirred into a fixed amount of plain water.

Carvedilol belongs to a category of drugs called alpha and beta blockers. Summary of the treatment of coronary failure. If you see anything unusual and are concerned, get in touch with your doctor. If your physician has recommended a dose different from those listed here, don’t alter the way which you are taking the medication without consulting your own doctor.

Several things can impact the dose of medication that somebody requirements, for example body weight, other health conditions, and other medications. Your own doctor will then boost the dose every 2 weeks until the very best dose is reached. You might need to utilize blood pressure medication for the remainder of your whole life. You must check with your personal doctor before changing up your diet.

If you want surgery, inform the surgeon in advance that you’re using carvedilol. In the event your child receives a rash within the initial 2 weeks of taking carvedilol, contact your physician straight away, since they may be allergic to carvedilol. Carvedilol may prove useful in the therapy for cardiac arrhythmias too. The antibiotic rifampicin may reduce the blood degree of carvedilol.

Heart failure happens when the heart cannot pump blood strongly enough for the entire body’s needs. This decreases the heart’s need for oxygen, meaning carvedilol could also be used within the management of angina. Therefore, people how have this condition needs to be cautious whilst taking carvedilol. Call your physician for medical advice regarding side effects.

Your blood pressure will have to be checked often. You should continue to bring it as directed if you expect to decrease your blood pressure and make sure that it stays down. In case your dose is decreased, it is a very good thought to limit your physical activity to lessen strain on your own heart. Don’t offer this medication to anybody else, even if they got the exact symptoms as you do. In heart failure, the heart doesn’t pump also as it might.

An interaction between two medications doesn’t always mean you have to stop taking one of these. It is essential that you simply follow your physician’s instructions about how much to give. This effect lowers your pulse, blood pressure, and strain in your heart. Also, some forms of the medication might not be used for each one of the conditions discussed here. Some medicines aren’t suitable for those who have certain circumstances, and at times a medicine can solely be used if extra care is taken. Within this setting, carvedilol is just about the perfect beta-blocker and might be regarded as a very first choice.

Many people with high blood pressure don’t feel sick. High blood pressure frequently has no symptoms. If high blood pressure isn’t treated, serious health problems like stroke, cardiovascular disease and kidney failure might occur. This dosage is identical irrespective of the patient’s age or weight. Carvedilol is used particularly for the treatment of coronary failure and significant blood pressure. This will definitely be helpful to the doctor.

All patients were instructed about the research protocol as well as their participation within the study. As limitations of the analysis, we can cite the little sample of patients along with the higher rate of exclusion. This information includes only the typical doses of the medicine. Our study didn’t compare the demand for reduction in medications, as carvedilol was utilized in association with several other medications. All the actions described above reduce the effort the heart has to make to pump blood across the body. It doesn’t spend the place of speaking to your doctor or pharmacist.

Carvedilol (Carvedilol): instruction, and the use of a formula

Code CAS

Feature substance Carvedilol

Alpha – and beta – blocker. It is a racemic mixture of two enantiomers, in which beta 1 – and beta 2 – blocking activity inherent S (& minus;) – enantiomer, and alpha 1 – Blocks ; R (+) and S (& minus;) – enantiomers equally.

A white or almost white crystalline powder. Easily soluble in dimethyl sulfoxide, methylene chloride and soluble in methanol, difficult soluble in 95% ethanol and isopropanol, slightly soluble in ethyl ether and practically insoluble in water. The molecular weight of 406,5.

Pharmacology

Mode of action – antianginal, antihypertensive, antioxidant, vasodilatory.

Blocks beta – and alpha 1 – adrenergic receptors. Blocking effect on beta – adrenergic receptors in 10 – 100 times more than the alpha 1 – adrenergic receptors. Inhibits vasoconstrictive neurohumoral activation of the blood vessels and heart. It has a pronounced vasodilating effect, due to arteriolar vasodilation decreases afterload on the heart. It reduces plasma renin activity. It does not own sympathomimetic activity, it has membrane stabilizing properties. Inhibits the proliferation and migration of smooth muscle cells, acting on – seems to specific mitogenic receptors. It does not have a pronounced effect on lipid metabolism and the content of K +. Na + and Mg 2+ in the plasma.

When ingestion absorbed quickly and adequately. C max achieved through 1hr Bioavailability .; 25% (the effect of “first pass” through the liver). If abnormal liver function and a decrease in “first pass” effect, the bioavailability increases to 80%. Food intake has no effect on the bioavailability and increases T max . Older people approximately 50% higher plasma concentrations than younger patients. Associated with the plasma protein by 99%. The volume of distribution ; 2 L / kg. Carvedilol is extensively metabolized in the liver, primarily by aromatic ring oxidation and glucuronidation involving cytochrome P450 isoenzyme CYP2D6. Other isoenzymes ; CYP2C9 and CYP3A4 ; involved in the metabolism of a lesser degree. By demethylation and hydroxylation of the phenyl ring formed three active metabolites with beta – adrenoceptor blocking action, as well as the weak vasodilating activity (alpha 1 – antagonists) compared to carvedilol. Preclinical studies have shown that beta – adrenoceptor blocking effect of 4 ‘- hydroxyphenyl metabolite is approximately 13 times more potent than carvedilol. Terminal T 1/2 is 7 – 10 hour plasma clearance .; about 590 ml / min. Excreted mainly in the bile, less than 2% is excreted in the urine in unchanged form.

When hypertension blood pressure reduction is not accompanied by characteristic of beta – blockers increase in systemic vascular resistance and changes in renal blood flow. Long antianginal effect in ischemic heart disease due to the decrease in pre – and afterload. It helps restore contractile function of the myocardium and improve blood evacuation of the left ventricular cavity, a reduction in systolic and end-diastolic left ventricular size. Patients with systolic form of congestive heart failure increases exercise tolerance, reduces heart rate. PR. increases left ventricular ejection fraction, cardiac index, reduces the pulmonary capillary wedge pressure.

The results of four multicenter, double-blind placebo – controlled studies (n = 1094) for the study of carvedilol in patients with heart failure, II and III class NYHA * (* NYHA – II: patients in this phase alone no symptoms, mild exercise is accompanied by fatigue, palpitations and shortness of breath (short breath); * NYHA – III: usually no symptoms at rest, a small physical exertion causes symptoms listed above) and an ejection fraction < 0,35 (most of the patients received basic therapy to consisting of ACE inhibitors. diuretics and digoxin) carvedilol reduced the risk of death of patients (65%) and the rate of hospitalization (38%). The Australian – New Zealand double-blind, placebo – controlled study (n = 415) in patients with less severe heart failure, carvedilol reduced the risk of death by 28%. Efficiency was more pronounced in patients with tachycardia (heart rate> 82 beats / min.) And low ejection fraction (> 23%). The therapeutic effect is manifested in ischemic etiology of chronic heart failure in patients with dilated cardiomyopathy. In appointing patients with left ventricular dysfunction after myocardial infarction observed reduction in mortality regardless of cause. It has an antioxidant effect due to inhibition of the formation of free oxygen radicals, a series of favorable metabolic effects: reduces the level of triglycerides, cholesterol, low-density lipoprotein and increases high-density lipoprotein cholesterol.

When administered to rats and mice at a dose of 75 mg / kg / day (12 times the MRDC) and 200 mg / kg / day (16 times the MRDC), respectively, evidence of carcinogenicity were not detected for two years. In carrying out various tests for mutagenicity (including Ames test, micronucleus test in vitro on Chinese hamster cells, in vivo test of human lymphocytes) produced a negative result.

In the study on rats and rabbits showed an increase in post-implantation losses when used in the rats in doses of 300 mg / kg / day (50 times the MRDC) and in rabbits at doses of 75 mg / kg / day (25 times the MRDC) ; in rats at doses of these fruits also showed a decrease in body weight and an increase in the frequency of skeletal malformations. It is shown that carvedilol and / or its metabolites into breast milk in rats and increases neonatal mortality of pups.

Application of the substance Carvedilol

Arterial hypertension, ischemic heart disease (stable angina), congestive heart failure (in combination therapy).

Contraindications

Hypersensitivity, hypotension (Sad less than 85 mm Hg..), Decompensated heart failure (IV NYHA functional class), which requires the appointment of inotropes, vasodilators, diuretics); bradycardia, AV block II – III degree sinoatrial block, sick sinus syndrome, cardiogenic shock, chronic obstructive pulmonary disease with a bronchospastic component of asthma (reported two fatalities due to the development of asthma status after a single dose of carvedilol), severe liver.

Restrictions on the use

Prinzmetal angina, recent worsening of heart failure, peripheral vascular disease (Raynaud’s syndrome, intermittent claudication), diabetes, hypoglycemia, pheochromocytoma, hyperthyroidism, holding general anesthesia, psoriasis, renal impairment, advanced age, childhood and adolescence ( up to 18 years).

Application of pregnancy and breastfeeding

When pregnancy is possible if the expected effect of therapy outweighs the potential risk to the fetus (adequate and well-controlled studies in humans have not done).

Category effects on the fetus by FDA ; C.

At the time of treatment should abandon breastfeeding (known whether carvedilol passes into breast milk in humans).

Side effects of substance Carvedilol

From the nervous system and sensory organs: dizziness, headache, fatigue, syncope (rare and usually only at the beginning of treatment), muscle weakness (most often at the beginning of treatment), disorder sleep, depression, paresthesia, xerophthalmia, lowering slezovydeleniya.

From the cardio – vascular system and blood (blood, hemostasis): bradycardia, disturbance of AV conduction postural hypotension, chest pain, angina pectoris, worsening of peripheral circulation, the progression of heart failure, exacerbation syndrome symptoms Reynaud, edema syndrome, thrombocytopenia, leukopenia, increased bleeding and bruising.

From the digestive tract: dry mouth, nausea, vomiting, abdominal pain, diarrhea, obstipation, increased levels of transaminases in the blood.

From the respiratory system: stuffy nose, sneezing, shortness of breath (in predisposed patients), bronchospastic reactions.

With the genitourinary system: a violation of urination, hematuria, acute renal failure.

Allergic reactions: skin rash, including allergic rash, urticaria, pruritus.

Other: swelling and pain in the extremities, weight gain, hyperglycemia, hyperbilirubinemia, hypercholesterolemia, flu-like symptoms, exacerbation of psoriasis symptoms.

Interaction

potentiate the effect of other antihypertensive agents or drugs. providing hypotensive effect as a side effect. Drugs with a beta – adrenoceptor blocking properties may may enhance hypoglycemic effect of insulin and oral hypoglycemic drugs. while the symptoms of hypoglycaemia (especially tachycardia) may be masked (recommended regular monitoring of blood glucose). When used in conjunction with cardiac glycosides, diuretics and / or ACE inhibitors may slow AV conduction. Increases of digoxin in serum. General anesthetics (cyclopropane, diethyl ether, trichlorethylene) reinforce the negative inotropic and hypotensive effects of carvedilol. Phenobarbital, rifampin and other agents that inhibit microsomal enzymes accelerate metabolism and reduce plasma concentration. Diuretics and ACE inhibitors potentiate hypotension. Caution should be used with anti-arrhythmic drugs and BPC. especially with diltiazem and verapamil (incompatible with / in the introduction of calcium antagonists).

Interactions of carvedilol with cyclosporine

Carvedilol may cause an increase in (small to medium) levels of cyclosporine in serum.
Clinical evidence, mechanism, importance and warning
In a study of 21 patients with kidney transplants shows that the gradual replacement of atenolol to carvedilol (doses ranging from 6.25 mg / day. increasing to 50 mg / day) dose of cyclosporine can be gradually reduced. After 90 days the daily dose of cyclosporine was reduced by 20% (from 3.7 to 3 mg / kg body weight), while maintaining a therapeutic level in the range, but with high intraindividual variation. The reason for this interaction is not clear, but the appointment of carvedilol should be ready for such cooperation.

Stockley’s drug interactions / Ed. by I.H. Stocrley. – 6th ed. – London – Chicago, Pharmaceutical Press.

Overdose

Symptoms: severe hypotension (Sad 80 mm Hg or less..), Bradycardia (less than 50 beats / min.), Heart failure, cardiogenic shock, cardiac arrest, violation of the respiratory function, bronchospasm , vomiting, confusion, generalized convulsions.

Treatment: while the patient is conscious, you must give it a horizontal position with raised legs (the patient is unconscious should be laid on its side), during the first hours ; take steps to remove the drug from the gastrointestinal tract (reception emetics / gastric lavage). Overdose requires intensive treatment. Antagonist beta – adrenoceptor blocking action is ortsiprenalin isoprenaline or 0,5 – 1 mg / in and / or glucagon in a dose of 1 – 5 mg (the maximum dose of ; 10 mg). With the development of bradycardia and other vascular complications must atropine (by 0,5 – 2 mg / w), with treatment-resistant shown bradycardia pacemaker application; to maintain cardio – vascular activity ; dobutamine, epinephrine, glucagon (1 – 10 mg / jet, then 2 – 5 mg / hour by infusion); with bronchospasm ; beta – sympathomimetics aerosol (after failure of ; w / w) or aminophylline (w / w); in the case of seizures ; diazepam, clonazepam. The control and correction of vital signs is recommended in the intensive care unit.

Dosing and Administration

inside When hypertension .; 25 – 50 mg 1 time per day (initial dose in the first 2 days may be 12.5 mg), angina ; 25 – 50 mg 2 times a day, in patients with chronic heart failure ; by 12,5 – 25 mg 2 times a day (up ; up to 100 mg / day).

Precautions substance Carvedilol

The therapy requires monitoring of liver and kidney functions, hemodynamic parameters, control of blood glucose concentration, patient body weight. With the development of bradycardia to 55 beats per minute drug should be discontinued. In patients with circulatory failure, hypotension (.. Sad less than 100 mm Hg), diffuse vascular changes and / or renal failure need to monitor renal function and its deterioration ; reduce the dose or stop the drug.

Caution should be used in elderly people (appointed half dose), at the recent worsening of heart failure. In all cases, treatment is initiated with low doses followed by a slow increase to their effective. With the progression of heart failure during treatment is recommended to increase the dose of diuretics, and in patients with renal failure the dose adjusted according to renal function. To prevent the syndrome of cancellation of the dose should be reduced gradually. People with severe allergies or a passing rate of desensitization, may increase the severity of hypersensitivity reactions. In patients with diabetes mellitus and hyperthyroidism may mask or reduce the symptoms caused by hypoglycemia (if necessary adjust the dose of hypoglycemic agents) or thyrotoxicosis. When pheochromocytoma should be simultaneously used alpha – adrenolytics. People who use contact lenses, you must take into account the ability to reduce tearing.

If you cancel a combination therapy with clonidine must be gradually phased out carvedilol for a few days before the start of a gradual reduction of the dose of clonidine. In the combination therapy of heart failure in the case of pronounced lowering of blood pressure is recommended to initially reduce the dose of diuretics or ACE inhibitors. During treatment excludes alcohol. Be wary appoint patients, whose work is connected with the necessity of attention and reaction speed.

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