| 单词 | Histamine H1 Antagonists,Non Sedating |
| 释义 | Histamine H1 Antagonists,Non Sedating《英文msh词典》Histamine H1 Antagonists,Non Sedating [入口词] Histamine H1 Antagonists,Non Sedating [主题词] Histamine H1 Antagonists,Non-Sedating [英文释义] A class of non-sedating drugs that bind to but do not activate histamine receptors,thereby blocking the actions of histamine or histamine agonists. These antihistamines represent a heterogenous group of compounds with differing chemical structures,adverse effects,distribution,and metabolism. Compared to the early (first generation) antihistamines,these non-sedating antihistamines have greater receptor specificity,lower penetration of BLOOD-BRAIN BARRIER,and are less likely to cause drowsiness or psychomotor impairment. |
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