Moricizine

427.5

427.15657746

250-854-5

2GT1D0TMX1

DTXSID4023335

C - Cardiovascular system

2934999090

2.98 (LogP)|2.3

156-157 °C|156.5 °C|156-157°C

>64.1 [ug/mL]|3.39e-02 g/L

Symptoms of overdose include vomiting, unconsciousness, and severe low blood pressure.

Approximately 95%.

Used to treat irregular heartbeats (arrhythmias) and maintain a normal heart rate.

Moricizine is used to treat irregular heartbeats (arrhythmias) and to maintain a normal heart rate. It acts on the heart muscle to improve the heart's rhythm. Moricizine has potent local anesthetic activity and membrane stabilizing effect. Decreases excitability, conduction velocity, and automaticity as a result of slowed atrioventricular (AV) nodal and His-Purkinje conduction. Decreases the action potential duration (APD) in Purkinje fibers; also decreases the effective refractory period (ERP) but to a lesser extent than the APD, so the ERP/APD ratio is increased. Decreases the maxiumum rate of Phase 0 depolarization (V max ), but does not affect action potential amplitude or maximum diastolic potential. Does not affect atrial, AV nodal, or left ventricular refractory periods and has minimal effect on ventricular repolarization (evidenced by the overall decrease in JT interval). Has no effect on sinoatrial (SA) nodal or intra-atrial conduction and only minimal effect on sinus cycle length and sinus node recovery time. In the Vaughan Williams classification of antiarrhythmics, moricizine is considered to be a class I agent. It has properties of class IA, IB, and IC agents but does not clearly belong to any of the three subclasses. It has less effect on the slope of phase 0 and a greater effect on action potential duration and effective refractory period than class IC agents.

Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade. (See all compounds classified as Anti-Arrhythmia Agents.)|A class of drugs that inhibit the activation of VOLTAGE-GATED SODIUM CHANNELS. (See all compounds classified as Voltage-Gated Sodium Channel Blockers.)

Well absorbed, absorption is complete within 2 to 3 hours. Significant first-pass metabolism results in an absolute bioavailability of approximately 38%. Administration within 30 minutes after a meal slows the rate, but does not affect the extent of absorption, although peak plasma concentrations are reduced.|Less than 1% of orally administered Ethmozine® is excreted unchanged in the urine. Approximately 56% of the administered dose is excreted in the feces and 39% is excreted in the urine.|300 L

Hepatic and extensive, to at least 26 metabolites, none accounting for as much as 1% of the administered dose. Two metabolites may be pharmacologically active but are present in extremely small quantities. Moricizine induces its own metabolism (it induces hepatic cytochrome P-450 activity).

2 hours (range 1.5-3.5 hours).

Moricizine works by inhibiting the rapid inward sodium current across myocardial cell membranes.

EN 313

Human Drugs -> FDA Approved Drug Products with Therapeutic Equivalence Evaluations (Orange Book) -> Active Ingredients