这个词是什么意思？
A loosely defined group of drugs that tend to increase behavioral alertness, agitation, or excitation. They work by a variety of mechanisms, but usually not by direct excitation of neurons. The many drugs that have such actions as side effects to their main therapeutic use are not included here.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000697 · MeSH 2026。
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