Sulfate,Quinidine

《英文msh詞典》Sulfate,Quinidine
[入口詞] Sulfate,Quinidine
[主題詞] Quinidine
[藥動學] Muscarinic Antagonists
[英文釋義] An optical isomer of quinine,extracted from the bark of the Cinchona 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 potential,and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.