propafenone | Propanorm tablets 150 mg, 50 pcs.

Special Price $17.48 Regular Price $28.00
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SKU
BID462605
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Latin name

PROPANORM
Latin name

PROPANORM

Release form

Coated tablets.

Packing

In a blister pack of 10 tablets. In the package of 5 blisters.

Pharmacological action

Propanorm tablets - an antiarrhythmic drug of class IC, blocks fast sodium channels.

Possesses weak -adrenergic blocking activity (corresponding to approximately 1/40 of the activity of propranolol) and m-anticholinergic effect. The antiarrhythmic effect is based on a local anesthetic and direct membrane stabilizing effect on myocardiocytes, as well as on the blockade of adrenergic -Adrenoreceptors and calcium channels.

The local anesthetic effect approximately corresponds to the activity of procaine.

Propafenone, blocking fast sodium channels, causes a dose-dependent decrease in the depolarization rate and inhibits phase 0 of the action potential and its amplitude in Purkinje fibers and contractile fibers of the ventricles, inhibits automatism. Slows down Purkinje fibers. Extends the time spent on the sinoatrial node and atria. When using propafenone, the PQ interval lengthens and the QRS complex (from 15 to 25) expands on the ECG, as well as the AN and HV intervals on the histogram. Slowing down the drug lengthens the effective refractory period in the atria, AV node, extra bundles, and, to a lesser extent, the ventricles. No significant changes in the QT interval were observed. Electrophysiological effects are more pronounced in ischemic than in normal myocardium. It has a negative inotropic effect, which usually manifests itself with a decrease in the ejection fraction of the left ventricle below 40%.

The drug begins 1 hour after ingestion, reaches a maximum after 2-3 hours and lasts 8-12 hours.

Indications

- Prevention and treatment of supraventricular and ventricular extrasystoles.

- Prevention and treatment of paroxysmal arrhythmias (supraventricular - atrial fibrillation and flutter, Wolff-Parkinson-White syndrome).

- Prevention and treatment of atrial ventricular re-entry tachycardia.

- Prevention of sustained monomorphic ventricular tachycardia.

Contraindications

- Severe forms of chronic heart failure (at the stage of decompensation), uncontrolled chronic heart failure.

- Cardiogenic shock (with the exception of arterial hypotension due to tachycardia, and antiarrhythmic shock).

- Severe bradycardia.

- Severe arterial hypotension.

- Sinoatrial block, intra-atrial dysfunction.

- Blockade of the legs of the bundle of His.

- Intraventricular bifascicular block and AV block II and III degree (without installing a pacemaker).

- SSSU.

- Tachycardia-bradycardia syndrome.

- Myocardial infarction.

- Lactation (breastfeeding).

- Children and adolescents under 18 years of age (efficacy and safety not established).

- Digoxin intoxication.

- Hypersensitivity to the drug.

With caution, the drug should be prescribed in the following cases:

- COPD.

- Myasthenia gravis (including myasthenia gravis).

- Heart failure (ejection fraction of less than 30%).

- Cardiomyopathy.

- Arterial hypotension.

- Hepatic cholestasis.

- Hepatic and / or renal failure.

- Electrolyte disturbances (must be corrected before the appointment of propafenone).

- Patients over the age of 70.

- Patients with a permanent or temporary pacemaker.

- Concomitant use with other antiarrhythmic drugs of similar effect.

Use during pregnancy and lactation

Use of propafenone during pregnancy, especially in the first trimester, only possible if the expected benefit to the mother outweighs the potential risk to the fetus.

Composition

1 coated tablet contains: Propafenone hydrochloride 150 mg

Excipients: microcrystalline granular cellulose, corn starch, copovidone, croscarmellose sodium, magnesium stearate, sodium laurimella diaromella 5, dyromolyllol silicon dioxide.

Dosage and administration

The dosage regimen is set individually and adjusted by the doctor.

The drug is taken after a meal. The tablets should be swallowed whole without chewing, washed down with a small amount of water.

The drug is prescribed 150 mg 3 times / day (every 8 hours). The daily dose is 450 mg.

The dose is increased gradually (every 3-4 days) to 600 mg / day (divided into 2 doses) or to a maximum of 900 mg / day (divided into 3 doses).

If, during treatment, an increase in the QRS complex or QT interval by more than 20% compared with the initial values, or an extension of the PQ interval by more than 50%, an extension of the QT interval by more than 500 ms, an increase in the frequency and severity of arrhythmia, should be reduced dose or temporarily interrupt the use of Propanorm.

Use in case of impaired liver function: In case of impaired liver function (cumulation is possible) Propanorm is used in doses of 20-30% of the usual.

Application for impaired renal function: In case of impaired renal function (creatinine clearance <10 ml / min), the initial dose is 50% of the initial.

Use in elderly patients and in patients weighing less than 70 kg: In patients older than 70 years, as well as in patients with body weight < 70 kg are used in smaller doses (the first dose is given in a hospital under the control of ECG and blood pressure).

Side effects of

From the cardiovascular system: bradycardia, AV dissociation, ventricular tachyarrhythmias, angina pectoris, worsening heart failure (in patients with reduced left ventricular function), sinoatrial block, AV block, intraventricular conduction disturbances, supraventricular tachyarrhythmias, when taken in high doses, orthostatic hypotension.

From the digestive system: taste change, dry mouth, bitterness in the mouth, nausea, decreased appetite, a feeling of heaviness in epigastrium, constipation or diarrhea rarely - liver dysfunction, cholestatic jaundice, cholestasis.

From the side of the central nervous system: headache, dizziness rarely - blurred vision, diplopia, convulsions.

From the hemopoietic system: leukopenia, agranulocytosis, an increase in bleeding time, thrombocytopenia, the appearance of antinuclear antibodies.

From the reproductive system: oligospermia, decreased potency.

Allergic reactions: skin rash, itching, exanthema, redness of the skin, urticaria, lupus-like syndrome.

Other: weakness, bronchospasm, hemorrhagic skin rash.

Drug Interaction

Cannot combine Propanorm with lidocaine because increases the cardio-depressive effect.

With the simultaneous use of propafenone increases the concentration of propranolol, metoprolol, digoxin (increases the risk of glycoside intoxication), indirect anticoagulants, cyclosporine in blood plasma.

When used together, propafenone enhances the action of warfarin (by blocking metabolism).

When used with beta-blockers, tricyclic antidepressants, increased antiarrhythmic action may occur.

When used with topical anesthetics, the risk of CNS involvement is increased.

Cimetidine and quinidine, by slowing metabolism, increase the concentration of propafenone in plasma by 20%, rifampicin - reduces.

When used with propafenone, amiodarone increases the risk of pirouette tachycardia.

Drugs that inhibit the sinoatrial node and the AV site and have a negative inotropic effect, when used with propafenone, increase the risk of side effects. drugs that inhibit bone marrow hematopoiesis, concomitant use with propafenone increases the risk of myelosuppression.

Overdose

When given at a single dose twice in excess of the daily dose, symptoms of intoxication may appear after 1 hour, maximum - in a few hours.

- Symptoms: persistent decrease in blood pressure, nausea, dry mouth, vomiting, mydriasis, drowsiness, extrapyramidal disorders, confusion, bradycardia, QT interval prolongation, ventricular and intraventricular conduction, ventricular ducts, ventricles - blockade, asystole, coma, convulsions, delirium, pulmonary edema.

- Treatment: gastric lavage, defibrillation, administration of dobutamine, diazepam if necessary - IVL and indirect cardiac massage. Hemodialysis is ineffective.

Storage conditions

- The drug should be stored in a dry, dark place at a temperature of 15 ° to 25 РC.

- Keep out of the reach of children.

- Do not use after the expiration date.

Expiration

2 years.

Active ingredient

Propafenone

Dosage form

dosage form

tablets

PRO.Crew6 PRO.fr. Czech Republic

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