Reference Terms
from Wikipedia, the free encyclopedia

Stimulant

A stimulant is a drug that increases the activity of the sympathetic nervous system and produces a sense of euphoria or the feeling of being more awake.

Stimulants can be used as recreational drugs or therapeutic drugs to increase alertness.

Note:   The above text is excerpted from the Wikipedia article "Stimulant", which has been released under the GNU Free Documentation License.
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August 5, 2015

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updated 12:56 pm ET