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Cordarone (Amiodarone)

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Cordarone is used to treat a variety of different types of fast, abnormal heart rhythms (these are known as tachyarrhythmias). It is used for severe rhythm disorders when other treatments are not effective or cannot be used.

Other names for this medication:

Similar Products:
Cartia Xt, Lanoxin


Also known as:  Amiodarone.


Cordarone is an antiarrhythmic. It works by stabilizing the heart rhythm in conditions in which the heart is beating too fast or in an irregular rhythm.

Generic name of Cordarone is Amiodarone.

Cordarone is also known as Amiodarone, Pacerone.

Brand name of Cordarone is Cordarone.


Cordarone is best taken with food. However, it is more important to take it consistently with regard to meals. If you take it with food, try to always take it with food to improve absorption of this medicine. If you prefer to take it on an empty stomach, then always try to take it on an empty stomach.

If you want to achieve most effective results do not stop taking Cordarone suddenly.


If you overdose Cordarone and you don't feel good you should visit your doctor or health care provider immediately.


Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F) away from moisture, light and heat. Keep container tightly closed. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Cordarone are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.


Do not take Cordarone if you are allergic to Cordarone components.

Do not take Cordarone if you're pregnant or you plan to have a baby, or you are a nursing mother.

Do not take Cordarone if you have complete, second degree, third degree, or severe sinoatrial heart block, an abnormally slow heartbeat, or shock due to serious heart problems, or if you have had fainting due to slow heartbeat (except if you have a pacemaker).

Do not take Cordarone if you are taking cisapride, dofetilide, an H1 antagonist (eg, astemizole, loratadine, terfenadine), an HIV protease inhibitor (eg, ritonavir), a phosphodiesterase type 5 inhibitors (eg, vardenafil), or a streptogramin (eg, dalfopristin, quinupristin).

Lab tests, including electrocardiogram (ECG), chest x-rays, lung tests, liver tests, thyroid tests, and eye exams, may be performed to monitor your progress.

Be careful with Cordarone if you have allergies to medicines, foods, or other substances.

Use Cordarone with great care in case you want to undergo an operation (dental or any other).

Avoid alcohol.

Avoid machine driving.

Try to protect your skin from the sunlight.

Do not stop taking Cordarone suddenly.

cordarone 200 mg

Although an electrophysiologic study (EPS) and Holter-monitoring are often helpful in evaluating the efficacy of antiarrhythmic drugs in patients with ventricular tachyarrhythmias (ventricular tachycardia/fibrillation (VT/VF)), the efficacy of EPS- or Holter-guided oral amiodarone therapy in Japanese patients is still unclear.

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The mechanisms precipitating sudden cardiac death may be ischemic, electrical, or mechanical. Activation of the autonomic nervous system leads to an increase in sympathetic tone, increasing blood pressure, shear forces, heart rate, platelet aggregation, and blood viscosity while decreasing heart-rate variability and lowering the ventricular fibrillation threshold. Such changes increase the likelihood of plaque rupture or erosion and platelet aggregation, resulting in ischemic or electrical sudden cardiac death. Management of benign ventricular arrhythmias should consist largely of abstinence from sympathetic nervous system stimulants; when pharmacotherapy is required, beta-adrenergic blockers are the agents of choice. Optimal therapy for potentially lethal ventricular arrhythmias is not yet firmly established for amiodarone and implantable cardioverter-defibrillator (ICD) use; however, appropriate secondary prevention utilizes aspirin, beta blockers, angiotensin-converting enzyme inhibitors, and revascularization procedures. Currently, ICDs are established as a first-choice intervention for malignant ventricular arrhythmias, while the adjunctive and independent use of beta-blocker therapy and amiodarone is undergoing further investigation.

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Amiodarone was administered by i.v. infusion of 20 mg/kg/day on day 1 and 10 mg/kg/day on day 2, followed by 600 mg/day orally throughout the study. Two serum samples for amiodarone and hormone assays (thyroid hormones, TSH, and the sulphate metabolites of 3'-T1, 3,3'-T2, and T3) were collected before the start of therapy, every 12 h during the first 3 days of amiodarone administration, and then once a day for 2-10 days.

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We found 26 studies that met our inclusion criteria. We performed a GRADE evaluation of the quality of evidence for interventions.

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The Cochrane Collaboration's database of controlled clinical trials and MEDLINE.

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Amiodarone causes a decrease in the rate of contraction of the rat isolated atria and has a negative inotropic action in the paced preparation. Interactions occur between amiodarone and ouabain and amiodarone and verapamil. It is possible that the clinically reported drug interaction with amiodarone may have a component of direct interactions on the myocardium rather than solely changes in plasma protein binding.

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Ranolazine produces ion channel effects similar to those observed after chronic amiodarone (reduced I(Kr), I(Ks), late I(Na), and I(Ca)). The actions of ranolazine to suppress EADs and reduce TDR suggest that, in addition to its antianginal actions, the drug may possess antiarrhythmic activity.

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In 1992 we described a new syndrome consisting of syncopal episodes and/or sudden death in patients with a structurally normal heart and a characteristic electrocardiogram displaying a pattern resembling right bundle branch block with an ST segment elevation in leads V1 to V3. In 1998 it was described that the disease is genetically determined with an autosomal dominant pattern of transmission. Three different mutations have been identified. All three mutations affect the structure and the function of the sodium channel SCN5A. Two mutations result in total loss of function of the sodium channel. The other mutation results in acceleration of the recovery of the sodium channel from inactivation. The disease causes 4 to 10 sudden deaths per 10,000 inhabitants per year in areas like Thailand and Laos. Up to 50% of the yearly sudden deaths in patients with a normal heart might be caused by this syndrome. The diagnosis is easily made by means of the electrocardiogram (ECG). The presence of concealed and intermittent forms, however, makes the diagnosis difficult in some patients. The ECG can be modulated by changes in autonomic balance and the administration of antiarrhythmic drugs. Beta-adrenergic stimulation normalises the ECG, while i.v. ajmaline, flecainide or procainamide accentuate the ST segment elevation and are capable of unmasking concealed and intermittent forms of the disease. The prognosis is poor for patients who do not receive an implantable cardioverter-defibrillator. Antiarrhythmic drugs like amiodarone or beta-blockers do not prevent sudden death in symptomatic or asymptomatic individuals.

cordarone heart medicine

The study included 50 consecutive patients, age 69+/-9, with a history of chronic AF for more than 3 months duration and electrical cardioversion. They were divided into two groups according to the presence (group 1) or absence (group 2) of early recurrence of AF. There were 13 (26%) patients in group 1 and 37 (74%) patients in group 2. The age, gender, duration of AF, left ventricular function, left atrial dimension, and underlying heart disease were similar between group 1 and 2. Forty-five patients were successfully converted to sinus rhythm with a mean energy of 158+/-57 . Among those who failed to be converted to sinus rhythm, 4 (80%) belonged to group 1 and 1 (20%) belonged to group 2. The early recurrences of AF were initiated with consecutive APDs; but the numbers of APD in the first 30 seconds after cardioversion were similar between group 1 and 2. However, the coupling interval of the second APD was shorter in group 1 than group 2 (188+/-22 vs 324+/-59 ms, P = 0.003). Nine of the 13 early recurrences were prevented by an increase of shock energy (n = 3) or intravenous amiodarone infusion (n = 6). There were no differences in duration of follow-up, recurrence rate, and time interval to recurrence between group 1 and group 2. Early recurrence of AF occurred in 26% of chronic AF patients who underwent external electrical cardioversion and was a major cause of failure in cardioversion. Early recurrence of AF was initiated by APDs with decreasing coupling intervals and could be prevented with an increase of shock energy or amiodarone.

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A retrospective study based on a random sample of 170 inpatients in 2009 was performed at Nantes University Hospital. We used standardized tools, especially general prescriptions rules of the "Collège professionnel des gériatres français", Beers's criteria, the Anticholinergic Risk Scale, concordance for renal function, and search for medication with tight therapeutic edge.

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Uptake and metabolism of thyroxine (T4) and 3,5,3'-triiodothyronine (T3) were studied in isolated perfused livers of control and amiodarone-treated rats (40 body, 22 days). With the use of this perfusion system and a two-pool model describing thyroid hormone kinetics, total uptake was evaluated by the half-time (t1/2) of the fast component of the biphasic thyroid hormone disappearance from the medium and by the fractional influx rate constant (k21). Metabolism was assessed by the t1/2 of the slow component, by determination of breakdown products in medium and bile, and by thyroid hormone disposal according to the two-pool model. Disposal was corrected for differences in mass transfer into the metabolizing pool. In amiodarone-treated rats, both uptake and metabolism of T4 were decreased. Furthermore, it was shown that only transport into the metabolizing liver compartment and not uptake into the nonmetabolizing liver compartment was decreased. Both uptake and total metabolism of T3 were unaffected by amiodarone. The results showed that the different transport systems for T4 and T3 described in isolated rat hepatocytes may also be operative in the intact rat liver. Furthermore, it can be concluded that the low-T3 syndrome, caused by treatment with amiodarone, may be due to both impaired transport and impaired 5'-deiodination.

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Readily available clinical criteria identify a small group likely to benefit from an ICD/PM after recent myocardial infarction (MI) and the remainder unlikely to benefit from nonselective ICD/PM therapy. Additional risk stratification should focus on the latter patients and be timed to allow ICD/PM implantation between 2 and 6 months after MI.

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Overall, the data presented herein indicate that tecarfarin, via a vitamin K-dependent mechanism, causes changes in key parameters of haemostasis in beagle dogs that are consistent with effective anticoagulation. Compared to warfarin it has a decreased potential to interact metabolically with drugs that inhibit CYP450 enzymes and, therefore, may offer an improved safety profile for patients.

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Our study showed that radioiodine administration is advisable in certain circumstances, even in euthyroid patients. It allows for continuation of further long-term AM treatment. Additionally, RIT allows for the reintroduction of AM therapy that was previously terminated. Hence, it can help control life-threatening tachyarrhythmias and decrease episodes of thyrotoxicosis.

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Raman spectroscopy was applied for the direct non-destructive analysis of amiodarone hydrochloride (ADH), the active ingredient of the liquid formulation Angoron((R)). The FT-Raman spectra were obtained through the un-broken as-received ampoules of Angoron((R)). Using the most intense vibration of the active pharmaceutical ingredient (API) at 1568cm(-1), a calibration model, based on solutions with known concentrations, was developed. The model was applied to the Raman spectra recorded from three as-purchased commercial formulations of Angoron((R)) having nominal strength of 50mgml(-1) ADH. The average value of the API in these samples was found to be 48.56+/-0.64mgml(-1) while the detection limit of the proposed technique was found to be 2.11mgml(-1). The results were compared to those obtained from the application of HPLC using the methodology described in the European Pharmacopoeia and found to be in excellent agreement. The proposed analytical methodology was also validated by evaluating the linearity of the calibration line as well as its accuracy and precision. The main advantage of Raman spectroscopy over HPLC method during routine analysis is that it is considerably faster and no solvent consuming. Furthermore, Raman spectroscopy is non-destructive for the sample. However, the detection limit for Raman spectroscopy is much higher than the corresponding for the HPLC methodology.

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We provide a snapshot of real-life contemporary daily clinical practice and evaluate AF burden and therapy. Most patients were found to have AF associated with one or more concomitant comorbidity.

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To assess the safety and efficacy of carvedilol when administered to heart failure patients already receiving amiodarone.

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Amiodarone hydrochloride is an antiarrhythmic drug which produces a keratopathy and anterior subcapsular lens opacities that are usually asymptomatic. Serial observations for eye findings were made in 21 patients on a daily dosage of 200-600 mg for periods ranging from six months to three years. Corneal deposits developed in all 21 patients and anterior lens opacities developed in 12 of 20 phakic patients. Resolving keratopathy was present in three patients for periods of at least seven to 20 months after amiodarone was discontinued.

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Between January 1, 2000 and March 10, 2012, a total of 930 consecutive patients who had been treated with amiodarone for arrhythmia were reviewed retrospectively. An amiodarone-associated adverse event was considered in cases of discontinuation or drug dose reduction due to an unexpected clinical response.

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Amiodarone, a drug used in heart therapy, is poorly soluble in water at room temperature, but forms transparent phases much more concentrated than the critical micellar concentration (CMC), when crystals are heated (above 60 degrees C) in presence of water and cooled down to room temperature. These pseudosolutions were supposed to be made of a complex system of micelles. In order to better understand the effects of pH and ion species on the supramolecular organization of amiodarone, interfacial pressure measurements were performed at the air/water interface on a Langmuir trough. Monolayers spread from chloroformic solutions over non bufferered subphases were insoluble at basic pH (NaOH, pH 10) but soluble at acidic pH (HCl, pH 4). However, a higher ionic strength obtained by adding NaCl (0.15 N) or NaH(2)PO(4) (0.15 N) to the subphase stopped the amiodarone solubilization. On an acidic phosphate subphase (NaH(2)PO(4), pH 4.4, 0.15 N), abnormally high surface pressures (>1 mN/m) were measured for high molecular areas (80-200 Å(2)/molecule) suggesting a supramolecular organization of the surface film. Insoluble monolayers were also obtained when the amiodarone supramolecular pseudosolution was spread on neutral (NaH(2)PO(4), pH 6.25, 0.15 N) or acidic (NaH(2)PO(4), pH 4.4, 0.15 N) subphases. However, a great instability on basic subphase (phosphate buffer pH 8.8) indicated the breakage of the supramolecular structure during spreading. These results are discussed taking into account the amiodarone state of ionization and the electrostatic interactions with counterions. Combining the use of phosphate counterions and that of acidic pH opens new perspectives in the optimization of amiodarone intravenous formulations.

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This was a prospective observational study over 9 months, set in two general medical wards. We studied consecutive patients (n = 141) who were receiving digoxin. Measurements included digitalis toxicity, defined by ECG criteria and resolution after stopping digoxin; all additional medications (including antiarrhythmics) continued. The observer was "blinded" to serum digoxin level and to concomitant drugs.

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Many of the drugs studied exhibited no visual or turbidimetric evidence of incompatibility when combined with neonatal TPN solution for up to three hours in a simulated Y-site injection. Pentobarbital, phenobarbital, and rifampin formed visible precipitation immediately after mixing with the neonatal TPN solution.

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Among survivors of ventricular fibrillation or sustained ventricular tachycardia causing severe symptoms, the implantable cardioverter-defibrillator is superior to antiarrhythmic drugs for increasing overall survival.

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Ranolazine is evaluated for antiarrhythmic therapy of atrial fibrillation (AF). The electrophysiologic mechanisms of ranolazine in combination with class III drugs were studied in an isolated whole-heart model of stretch-related AF.

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Amiodarone-induced thyrotoxicosis (AIT) type 1 occurs in subjects with an underlying thyroid disease, whereas type 2 AIT is a form of destructive thyroiditis. Our hypothesis was that the common practice of thyroid testing before prescription of amiodarone would reduce the incidence of pure type 1 AIT, though a stringent classification may be difficult (mixed type AIT).

cordarone drug class

Postmortem distribution concentrations of the pain medication tapentadol and its metabolite N-desmethyltapentadol are reported. Tapentadol (Nucynta®) is a synthetic mu-opioid receptor agonist that also has norepinephrine reuptake inhibitor action. The laboratory received two cases. Case 1: a 19-year-old, morbidly obese male with sudden unexpected death. Toxicology results revealed tapentadol (femoral blood: 0.77 mg/L, liver: 1.65 mg/kg), N-desmethyltapentadol (femoral blood: 0.07 mg/L, liver: 0.19 mg/kg), diazepam (femoral blood: 0.04 mg/L), nordiazepam (femoral blood: 0.06 mg/L) and amiodarone (femoral blood: 5.30 mg/L). Case 2: a 60-year-old female who died from complications following hip replacement. Only tapentadol (femoral blood: 0.26 mg/L, liver: 0.52 mg/kg) was found in the toxicology results. Quantitative results of tapentadol/N-desmethyltapentadol were achieved using liquid chromatography-tandem mass spectrometry in multiple reactions monitoring mode. This is the first known distribution study of tapentadol and N-desmethyltapentadol values in postmortem cases.

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Acute and chronic amiodarone may act through different mechanisms.

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cordarone 400 mg 2017-08-17

Patients with past myocardial infarction who did not have sustained ventricular arrhythmia buy cordarone .

cordarone 50 mg 2017-12-21

Otyłość pacjenta, współwystępowanie nadciśnienia tętniczego i terapia amiodaronem mają wpływ na zmniejszenie jakości leczenia przeciwzakrzepowego za pomocą warfaryny. Właściwe monitorowanie buy cordarone i edukacja pacjentów pozwalają na uzyskanie wysokiej jakości leczenia przeciwzakrzepowego oraz ograniczenie występowania powikłań krwotocznych i zakrzepowo-zatorowych.

cordarone tablet 2015-08-08

Myoblast transplantations were performed after 3 weeks of in vitro culture in all patients. One patient died of a recent infarction at day 7 postoperatively because of a recent infarction in a remote area of the left ventricle. The left ventricular ejection fraction increased from 25% to 40% (mean, 35.2%) before the procedure to 29% to 47% (mean, 42.0%) during the 4-month visit (P <.05), and the effect was maintained throughout 12 months of follow-up. Sustained ventricular tachycardia was observed in 2 patients in the early postoperative period and in the other buy cordarone 2 patients after 2 weeks of follow-up. Prophylactic amiodarone infusion was used in the remaining 8 patients and prevented sustained ventricular tachycardia episodes.

cordarone 200 mg 2016-02-14

We firstly report a postoperative hemodialysis patient who was co-administered with amiodarone and dexmedetomidine and developed severe buy cordarone bradycardia followed by cardiac arrest. A 79-year-old male patient underwent an amputation of the right lower extremity. The electrocardiogram of the patient showed a complete right bundle branch block with left anterior fascicular block before the anesthesia, and paroxysmal atrial tachycardia over 200 beats/min lasting 15 min was observed during surgery. After admission to the intensive care unit, the intensivist and the consultant cardiologist decided to treat tachycardia using amiodarone. The initial dosing of amiodarone and the maintenance infusion succeeded to decrease the heart rate. Approximately 2 h and a half after the start of dexmedetomidine infusion for sedation, the heart rate gradually declined and severe bradycardia suddenly followed by cardiac arrest was observed. Resuscitation was promptly initiated and the patient regained sinus rhythm without delay. In retrospective analysis, the monitoring record of the electrocardiogram revealed the marked atrioventricular conduction abnormalities. This is the first case report concerning a cardiac arrest induced by amiodarone and dexmedetomidine.

cordarone brand name 2017-05-18

The basal epithelium was most affected in any of the keratopathy stages. In stage 1 buy cordarone patients only the superficial and basal epithelium are affected, while patients in stages 2 and 3 have all corneal layers affected. With the advance of keratopathy the corneal nerves became thinner and tortuous.

cordarone tablets 2015-04-15

To review the available literature addressing preventive strategies of post-cardiothoracic surgery atrial fibrillation (post-CTS atrial buy cordarone fibrillation).

cordarone 10 mg 2015-11-16

Subclinical and overt hyperthyroidism is a known trigger of atrial fibrillation and flutter (AF). We wanted to see if thyroid function tests buy cordarone (TFT) were being requested appropriately in patients with atrial fibrillation or flutter at North Shore Hospital, and how common subclinical or overt hyperthyroidism was in our local inpatient population presenting with AF.

cordarone drug interactions 2016-03-14

This was an open-label, randomized, parallel-group, multicenter study. Patients with persistent AF, dual-chamber implantable cardioverter defibrillator or cardiac resynchronization therapy defibrillator, New York Heart Association II to III, and left ventricular ejection fraction <40% within the past 6 months were randomly assigned (1:1 ratio) to undergo CA for AF (group 1, n= buy cordarone 102) or receive AMIO (group 2, n=101). Recurrence of AF was the primary end point. All-cause mortality and unplanned hospitalization were the secondary end points. Patients were followed up for a minimum of 24 months. At the end of follow-up, 71 (70%; 95% confidence interval, 60%-78%) patients in group 1 were recurrence free after an average of 1.4±0.6 procedures in comparison with 34 (34%; 95% confidence interval, 25%-44%) in group 2 (log-rank P<0.001). The success rate of CA in the different centers after a single procedure ranged from 29% to 61%. After adjusting for covariates in the multivariable model, AMIO therapy was found to be significantly more likely to fail (hazard ratio, 2.5; 95% confidence interval, 1.5-4.3; P<0.001) than CA. Over the 2-year follow-up, the unplanned hospitalization rate was (32 [31%] in group 1 and 58 [57%] in group 2; P<0.001), showing 45% relative risk reduction (relative risk, 0.55; 95% confidence interval, 0.39-0.76). A significantly lower mortality was observed in CA (8 [8%] versus AMIO (18 [18%]; P=0.037).

cordarone generic 2016-11-11

Recurrent ventricular tachycardia (torsade de pointes) is a serious and sometimes fatal arrhythmia occurring usually with quinidine therapy. Four buy cordarone patients experienced ventricular tachycardia after receiving conventional doses of disopyramide phosphate (600 mg/day) for recurrent atrial fibrillation-two of them in combination with amiodarone hydrochloride. Isoproterenol hydrochloride infusion was effective in three patients, while ventricular pacing promptly abolished ventricular ectopic beats and the ventricular tachycardia in the fourth patient. Torsade de pointes is more likely to occur in patients with severe repolarization delay and sinus bradycardia or atrioventricular block, and its appearance in four patients within a period of nine months after the introduction of disopyramide treatment in our service raises the possibility that this is not a rare complication of this drug, especially if used in combination with other QT interval-prolonging agents.

cordarone 20 mg 2015-11-12

Atrial fibrillation (Afib) is clinically the most common arrhythmia. Its main complications are recurrent embolic events and a variable deterioration of functional class. Atrial fibrillation induces changes in cellular ionic channels that self-perpetuate the arrhythmia. The pharmacologic treatment of Afib is directed toward correction of those changes and return to sinus rhythm. It is also intended to maintain adequate heart rates and prevent embolic events through anticoagulation or platelet antiagregation. There are presently several class IC or class III antiarrhythmics available for attempting a return to sinus rhythm. The success rates are irregular, the best achieved with flecainide or propafenone among patients without structural heart disease. Amiodarone is the best choice when there is such a problem. The combination possibilities are huge, so that each case must be individualized. The new class III antiarrhythmics are very effective, but have a relatively high rate of side effects including torsade de pointes. Anticoagulation should be the preferred treatment among the majority of patients, but each case should be individually evaluated. New therapies such as focal or linear catheter ablation techniques, atrial or biatrial buy cordarone programmed stimulation, and atrial cardioverter-defibrillator need longer follow-up and experience to be objectively evaluated, although there are reasons to be optimistic in the future, even if patients need antiarrhythmic support at present. Surgery has high morbi-mortality rates, so it is not the preferred approach.

cordarone 60 mg 2015-06-25

Amiodarone is a powerful antiarrhythmic drug; buy cordarone however, its use may be complicated by thyrotoxicosis. When this occurs, clinicians must balance the continuation of amiodarone for antiarrhythmic purposes, and the discontinuation of treatment in order to prevent aggravation of the thyrotoxicosis. We studied the consequences of continuation or cessation of amiodarone in patients with type II amiodarone-induced thyrotoxicosis.

cordarone overdose 2015-10-04

The aim of this prospective, randomized study was to investigate the effect of pretreatment with two different intracellular calcium-lowering drugs (verapamil and metoprolol) on recovery from atrial effective refractory period (AERP) shortening after internal electrical cardioversion (EC) of persistent atrial fibrillation (AF) in patients on amiodarone. Twenty-one patients on amiodarone for at least 30 days were referred to our hospital for internal EC of a persistent AF refractory to external EC. They were randomized to receive only amiodarone (group AMI, n=7), or amiodarone and verapamil 240 mg/day (group VER, n=7), or amiodarone and metoprolol 100 mg/day (group MET, n=7). Left AERP was measured 10 min and 24 h after EC. AERP was also determined in 13 controls. The AERP after 10 min was significantly shorter in group AMI (201 (31) ms, P<0.02) and group MET (203 (34) ms, buy cordarone P<0.03) than in controls (249 (45) ms), but not in group VER (237 (51) ms, P=NS). The AERP after 24 h was still significantly shorter in group AMI (204 (38) ms, P<0.04) than in controls, but not in group MET (225 (52) ms, P=NS) or in group VER (290 (36) ms, P=NS). Pretreatment with amiodarone and verapamil prevents AERP shortening, while pretreatment with amiodarone and metoprolol only accelerated AERP recovery.

cordarone overdose death 2015-03-31

Our purpose was to evaluate the efficacy of antiarrhythmic Zithromax 500mg Tablets drugs (AADs) in recurrent ventricular fibrillation (VF) associated with inferolateral early repolarization pattern on the electrocardiogram.

cordarone dosing 2017-08-07

Optometrists should be aware of the potential for ocular side effects from systemic medications. Eye care guidelines for monitoring ocular side effects from thioridazine, INH, Mysoline And Alcohol steroids, and amiodarone use are suggested.

cordarone 5 mg 2015-12-12

Amiodarone is an antiarrhythmic agent commonly used in the treatment of supraventricular and ventricular tachyarrhythmias. This article reviews the results and clinical implications of primary and secondary prevention trials in which amiodarone was used in one of the treatment arms. Key post-myocardial infarction primary prevention trials include the European Myocardial Infarct Amiodarone Trial (EMIAT) and the Canadian Amiodarone Myocardial Infarction Trial (CAMIAT), both of which demonstrated Prednisone Maintenance Dose that amiodarone reduced arrhythmic but not overall mortality. In congestive heart failure patients, amiodarone was studied as a primary prevention strategy in two pivotal trials: Grupo de Estudio de la Sobrevida en la Insuficiencia Cardiac en Argentina (GESICA) and Amiodarone in Patients With Congestive Heart Failure and Asymptomatic Ventricular Arrhythmia (CHF-STAT). Amiodarone was associated with a neutral overall survival and a trend toward improved survival in nonischemic cardiomyopathy patients in CHF/STAT and improved survival in GESICA. In post-myocardial infarction patients with nonsustained ventricular tachycardia and a depressed ejection fraction, the Multicenter Automatic Defibrillator Implantation Trial (MADIT) demonstrated that implantable cardioverter-defibrillators (ICD) statistically improved survival compared to the antiarrhythmic drug arm, most of whose patients were taking amiodarone. In patients with histories of sustained ventricular tachycardia or ventricular fibrillation, the Cardiac Arrest Study in Seattle: Conventional Versus Amiodarone Drug Evaluation (CASCADE) trial demonstrated that empiric amiodarone lowered arrhythmic recurrence rates compared to other drugs guided by serial Holter or electrophysiologic studies. However, arrhythmic death rates were high in both treatment arms of the study. Several secondary prevention trials, including the Antiarrhythmics Versus Implantable Defibrillators Study (AVID), the Canadian Implantable Defibrillator Study (CIDS), and the Cardiac Arrest Study Hamburg (CASH), have demonstrated the superiority of ICD therapy compared to empiric amiodarone in improving overall survival. Based on the above findings, amiodarone is safe to use in post-myocardial infarction and congestive heart failure patients that need antiarrhythmic therapy. Although amiodarone is effective in treating malignant arrhythmias, high-risk patients should be considered for an ICD as frontline therapy.

cordarone iv dose 2016-11-11

Antiarrhythmic drugs are used commonly in out-of-hospital cardiac Lioresal Tablet arrest for shock-refractory ventricular fibrillation or pulseless ventricular tachycardia, but without proven survival benefit.

cordarone 500 mg 2016-10-28

Thirty-two patients undergoing AF ablation (19 paroxysmal, 13 permanent) during ongoing arrhythmia were studied. Electroanatomic mapping was performed, acquiring 126+/-13 points per patient throughout both atria and coronary sinus. At each point, 5-second electrograms were obtained to determine the highest-amplitude frequency on spectral analysis and to construct 3D dominant frequency (DF) maps. The temporal stability of the recording interval was confirmed in a subset. Ablation was performed with the operator blinded to the DF maps. The effect of ablation at sites with or without high-frequency DF sites (maximal frequencies surrounded by a decreasing frequency gradient > or =20%) was evaluated by determining the change in AF cycle length (AFCL) and the termination and inducibility of AF. The spatial distribution of the DF sites was different in patients with paroxysmal and permanent AF; paroxysmal AF patients were more likely to harbor the DF site within the pulmonary vein, whereas in permanent AF, atrial DF sites were more prevalent. Ablation at a DF site resulted in significant prolongation of the AFCL (180+/-30 to 198+/-40 ms; P<0.0001; kappa=0.77), whereas in the absence of a DF site, there was no change in AFCL (169+/-22 to 170+/-22 ms; P=0.4). AF terminated during ablation in 17 of 19 patients with paroxysmal and 0 of 13 with permanent AF (P<0.0001). When 2 patients with nonsustained AF during mapping were excluded, 13 of 15 (87%) had AF termination at DF sites (54% at the initially ablated DF site): 11 pulmonary veins and 2 atrial. In addition, AF could Imitrex Dosing no longer be induced in 69% with termination of AF at a DF site. There were no significant differences in the number or percentage of DF sites detected (5.4+/-1.6 versus 4.9+/-2.1; P=0.3) and ablated (1.9+/-1.0 versus 2.4+/-1.0; P=0.3) in those with and without AF termination. The duration of radiofrequency ablation to achieve termination was significantly shorter than that delivered in those with persisting AF (34.8+/-24.0 versus 73.5+/-22.9 minutes; P=0.0002). All patients with persisting AF had additional DF sites outside the ablated zones.

cordarone 100 tablet 2016-05-27

Caffeine is a natural alkaloid methylxanthine that is found in various plants such as coffee or tea. Symptoms of a severe overdose may present with hypokalemia, hyponatremia, ventricular Seroquel Reviews Depression arrhythmias, hypertension followed by hypotension, respiratory failure, seizures, rhabdomyolysis, ventricular fibrillation and finally circulatory collapse. A 21-year-old woman called for the ambulance herself soon after the ingestion of about 10,000 mg of caffeine. At the arrival of the ambulance, the patient went into cardiac arrest almost immediately. After a total resuscitation period of 34 min including seven counter-shocks and 2 mg epinephrine, the patient was stable enough to be transferred to the hospital. The patient soon went into VF again and received two more counter-shocks and 1 mg epinephrine and finally an intravenous bolus dose of 300 mg amiodarone. The initial arterial blood gas showed pH at 6.47, lactate at 33 mmol/l and potassium level at 2.3 mmol/l. Unfortunately, no blood samples for caffeine analysis were taken. Three days after hospital admission, the patient developed myoclonus, which did not respond to medical treatment. Excessive intake of caffeine may produce arrhythmias and pronounced hypokalemia and ensuing ventricular fibrillation. In case of counter-shock-resistant VF, it can be necessary to give an early loading dose of amiodarone. Furthermore, it may be beneficial to replace the potassium as early as possible. Epinephrine and buffer solutions used during resuscitation may further decrease blood potassium levels and should be administrated cautiously. Epinephrine can be replaced by other vasopressor drugs, such as vasopressin without effects on beta-receptors.

cordarone generic name 2015-11-26

Combined therapy of Chinese and Cipro Gonorrhea Dosage Western medicines shows synergistic effect of anti-arrhythmia.

cordarone oral dose 2017-03-06

The cost-effectiveness of ICD therapy varies Lopressor Overdose Deaths by patient risk factor status. The use of ICD therapy in patients who have >/=2 risk factors of age >/=70 years, left ventricular ejection fraction

cordarone drug card 2017-08-07

In a cohort of well-characterized ARVC Moduretic 50 Mg subjects, neither beta-blockers nor sotalol seemed to be protective. Evidence from a small number of patients suggests that amiodarone has superior efficacy in preventing ventricular arrhythmias.

cordarone drug 2015-11-15

A double blind, randomised, placebo controlled trial. 60 patients received a 24 hour intravenous infusion of amiodarone (15 mg/kg started after removal of the aortic cross clamp) followed by 200 mg orally three times daily for 5 days, and 60 patients received placebo.

cordarone dose 2015-11-26

A randomized controlled trial registered at (NCT01447862) was performed in 100 patients with recent-onset atrial fibrillation treated at the emergency department of a tertiary care hospital. Patients received up to two short infusions of vernakalant (n = 49; 3 mg/kg followed by 2 mg/kg if necessary) or ibutilide (n = 51; 1 mg followed by another 1 mg if necessary) according to the manufacturer's instructions. Clinical and laboratory variables, adverse events, conversion rates, and time to conversion were recorded. Time to conversion of AF to sinus rhythm was significantly shorter in the vernakalant group compared with the ibutilide group (median time: 10 vs. 26 min, P = 0.01), and likewise the conversion success within 90 min was significantly higher in the vernakalant group (69 vs. 43%, log-rank P = 0.002). No serious adverse events occurred.

cordarone medicine 2017-01-28

In clinical practice, observational studies remain necessary for evaluating accepted and new treatments. The comparison of results remains difficult and often controversial, because of a wide variation in clinical characteristics. Survival analysis and calculation of the standardized mortality ratio offer the possibility to compare outcomes in different study groups. We have applied these techniques to an observational comparison of outcomes in three groups of patients, followed in two university centres: (i) patients treated with an implantable cardioverter defibrillator; (ii) patients under amiodarone treatment; and (iii) recipients of a heart transplant. There was no statistically significant difference in the cumulative survival from total mortality. The standardized mortality ratio revealed the different natural history of patients undergoing heart transplantation.

cordarone cost 2017-04-11

The effects of 17 commonly used antiarrhythmic drugs on the rapidly activating cardiac voltage-gated potassium channels (Kv1.1, Kv1.2, Kv1.4, Kv1.5, Kv2.1 and Kv4.2) were studied in the expression system of the Xenopus oocyte. A systematic overview on basic properties was obtained using a simple and restricted experimental protocol (command potentials 10 mV and 50 mV positive to the threshold potential; concentration of 100 micromol/l each). The study revealed that 8 of 17 drugs yielded significant effects (changes >10% of control) on at least one type of potassium channel in the oocyte expression system. These drugs were ajmaline, diltiazem, flecainide, phenytoin, propafenone, propranolol, quinidine and verapamil, whereas the effects of adenosine, amiodarone, bretylium, disopyramide, lidocaine, mexiletine, procainamide, sotalol and tocainide were negligible. The drug effects were characterized by reductions of the potassium currents (except for quinidine and ajmaline). A voltage-dependence of drug effect was found for quinidine, verapamil and diltiazem. The different effect of the drugs was not related to the fast or slow current inactivation of the potassium channels (except for verapamil). Profiles of the individual drug effects at the different potassium channel types were identical for propafenone and flecainide and differed for all other substances. The study demonstrates marked differences in sensitivity to antiarrhythmic drugs within the group of voltage-operated cardiac potassium channel types. Taking the restrictions of the oocyte system into consideration, the findings suggest that several antiarrhythmic drugs exert significant effects at rapidly activating cardiac potassium channels.

cordarone renal dose 2017-04-27

This case demonstrates the use of Tc-99m HMPAO scintigraphy in amiodarone (AD)-induced lung toxicity. The aim of this presentation is also to discuss different scintigraphic modalities in the diagnosis and follow up in AD-induced lung toxicity.

cordarone drug information 2015-04-09

Alkalinization of the matrix side of the mitochondrial inner membrane by pH shifts from 6.8 to 8.3 caused a reversible increase in current of 3.2 +/- 0.2 pA (mean +/- SE, n = 21) at +/- 40 mV measured using patch-clamp techniques. The current increase was reversed in a graded fashion by the addition of Mg2+ as well as a reduction in pH. Detection of single-channel events was done at 0.5, 1 and 2 M KCl. The single-channel amplitude in 0.15 M KCl corresponds to approximately 15 pS. Reversal potentials derived from whole patch currents indicated that the inner mitochondrial membrane was primarily cation selective at pH 6.8 with a PK/PCl = 32 (n = 6). Treatment with alkaline pH (8.3) increased the current and anion permeability (PK/PCl = 16, n = 6). The membrane becomes completely cation selective when low concentrations (12 microM) of the drug propranolol are added. The amphiphilic drugs amiodarone (4 microM), propranolol (70 microM) and quinine (0.6 mM) blocked almost all of the current. The pH-dependent current was also inhibited by tributyltin. These results are consistent with the presence of two pathways in the inner mitochondrial membrane. One is cation selective and generally open and the other is anion selective and induced by alkaline pH. The alkaline pH-activated channel likely corresponds to the inner membrane anion channel postulated by others from suspension studies.