dofetilide   Click here for help

GtoPdb Ligand ID: 2604

Synonyms: Tikosyn® | UK-68798
Approved drug
dofetilide is an approved drug (FDA (1999))
Compound class: Synthetic organic
Comment: Dofetilide blocks potassium voltage-gated channels (HERGs).
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 7
Hydrogen bond donors 2
Rotatable bonds 11
Topological polar surface area 121.57
Molecular weight 441.14
XLogP 2.14
No. Lipinski's rules broken 1
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Canonical SMILES CN(CCc1ccc(cc1)NS(=O)(=O)C)CCOc1ccc(cc1)NS(=O)(=O)C
Isomeric SMILES CN(CCc1ccc(cc1)NS(=O)(=O)C)CCOc1ccc(cc1)NS(=O)(=O)C
InChI InChI=1S/C19H27N3O5S2/c1-22(13-12-16-4-6-17(7-5-16)20-28(2,23)24)14-15-27-19-10-8-18(9-11-19)21-29(3,25)26/h4-11,20-21H,12-15H2,1-3H3
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Summary of Clinical Use Click here for help
Dofetilide is used to maintain or restore normal cardiac rhythm in patients with cardiac arrhythmias (atrial fibrillation and flutter)
Mechanism Of Action and Pharmacodynamic Effects Click here for help
By blocking the rapid component of the delayed rectifier outward potassium current (IKr), via HERG channels in the myocardium, dofetilide prolongs the duration of the action potential and refractory period, thereby restoring normal cardiac rythmn.