QUINIDINE SULFATE
\kwˈɪnɪdˌiːn sˈʌlfe͡ɪt], \kwˈɪnɪdˌiːn sˈʌlfeɪt], \k_w_ˈɪ_n_ɪ_d_ˌiː_n s_ˈʌ_l_f_eɪ_t]\
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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.
By DataStellar Co., Ltd
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