Quinidine
Synonyms
Adaquin
Apo Quinidine
Apo-Quinidine
Apotex Brand of Quinidine Sulfate
Chinidin
Cinchonan-9-ol, 6'-methoxy-, (9S)-
Fawns & McAllan Brand of Quinidine Sulfate
Nelson Brand of Quinidine Sulfate
Quincardine
Quinidex
Quinidine Sulfate
Quinora
Robins Brand of Quinidine Sulfate
Sulfate, Quinidine
An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.