![]() | Amphetamines | ![]() |
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Amphetamine Effects on the Nervous System![]()
All of these actions result in more dopamine in the synaptic cleft where it can act on receptors. Many of the effects of amphetamines are similar to cocaine. Addiction to and withdrawal from amphetamines are both possible. Amphetamine use also causes tolerance to its effects. This means that more and more amphetamine must be used to get "high." Amphetamine withdrawal is characterized by severe depression and fatigue. Users will go to extreme measures to avoid the "downer" that comes when the effect of amphetamines wears off.
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