Repositioning Candidate Details

Candidate ID: R0436
Source ID: DB01182
Source Type: approved
Compound Type: small molecule
Compound Name: Propafenone
Synonyms: 1-(2-(2-hydroxy-3-(propylamino)propoxy)phenyl)-3-phenyl-1-propanone; 2-(2'-hydroxy-3'-propylaminopropoxy)-ω-phenylpropiophenone; Propafenone
Molecular Formula: C21H27NO3
SMILES: CCCNCC(O)COC1=C(C=CC=C1)C(=O)CCC1=CC=CC=C1
Structure:
DrugBank Description: An antiarrhythmia agent that is particularly effective in ventricular arrhythmias. It also has weak beta-blocking activity. The drug is generally well tolerated.
CAS Number: 54063-53-5
Molecular Weight: 341.444
DrugBank Indication: Used to prolong the time to recurrence of paroxysmal atrial fibrillation/flutter (PAF) associated with disabling symptoms in patients without structural heart disease. Also used for the treatment of life-threatening documented ventricular arrhythmias, such as sustained ventricular tachycardia.
DrugBank Pharmacology: Propafenone is a Class 1C antiarrhythmic drug with local anesthetic effects, and a direct stabilizing action on myocardial membranes. It is used in the treatment of atrial and ventricular arrhythmias. It acts by inhibiting sodium channels to restrict the entry of sodium into cardiac cells resulting in reduced excitation. Propafenone has local anesthetic activity approximately equal to procaine.
DrugBank MoA: The electrophysiological effect of propafenone manifests itself in a reduction of upstroke velocity (Phase 0) of the monophasic action potential. In Purkinje fibers, and to a lesser extent myocardial fibers, propafenone reduces the fast inward current carried by sodium ions, which is responsible for the drugs antiarrhythmic actions. Diastolic excitability threshold is increased and effective refractory period prolonged. Propafenone reduces spontaneous automaticity and depresses triggered activity. At very high concentrations in vitro, propafenone can inhibit the slow inward current carried by calcium but this calcium antagonist effect probably does not contribute to antiarrhythmic efficacy.
Targets: Sodium channel protein type 5 subunit alpha inhibitor; Potassium voltage-gated channel subfamily H member 2 inhibitor; Beta-1 adrenergic receptor antagonist; Beta-2 adrenergic receptor antagonist
Inclusion Criteria: Indication associated