ANTIARRHYTHMIA DRUGS
\ˌantɪɐrhˈɪθmi͡ə dɹˈʌɡz], \ˌantɪɐrhˈɪθmiə dɹˈʌɡz], \ˌa_n_t_ɪ__ɐ_r_h_ˈɪ_θ_m_iə d_ɹ_ˈʌ_ɡ_z]\
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Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.
By DataStellar Co., Ltd
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.