M5041T
\ˈɛm fˈa͡ɪv θˈa͡ʊzənd ən fˈɔːtiwˈɒn tˈiː], \ˈɛm fˈaɪv θˈaʊzənd ən fˈɔːtiwˈɒn tˈiː], \ˈɛ_m f_ˈaɪ_v θ_ˈaʊ_z_ə_n_d ə_n f_ˈɔː_t_i_w_ˈɒ_n t_ˈiː]\
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An alpha-2 adrenergic agonist that crosses the blood-brain barrier. Clonidine acts centrally by reducing sympathetic tone, resulting in a fall in diastolic and systolic blood pressure and a reduction in heart rate. It also acts peripherally, and this peripheral activity may be responsible for the transient increase in blood pressure seen during rapid intravenous administration. (From Martindale, the Extra Pharmacopoeia, 30th ed, p350)
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Word of the day
basidiomycota
- comprises fungi bearing the spores on basidium: Gasteromycetes (puffballs); Tiliomycetes (comprising orders Ustilaginales (smuts) and Uredinales (rusts)); Hymenomycetes (mushrooms; toadstools; agarics; bracket fungi); in some classification systems considered a division of kingdom comprises fungi bearing spores on a basidium; includes Gasteromycetes (puffballs) Tiliomycetes comprising the orders Ustilaginales (smuts) and Uredinales (rusts) Hymenomycetes (mushrooms, toadstools, agarics bracket fungi).