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Cocaine is a powerful stimulant drug that increases levels of dopamine, a neurotransmitter associated with pleasure and movement, in the brain's reward circuit.
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Dopamine: A neurotransmitter in the brain that regulates mood, attention, learning, and feelings of pleasure.
Stimulant: A type of drug that increases activity in the body by enhancing functions such as heart rate, blood pressure, and energy levels.
Neurotransmitter: Chemicals in the brain that transmit signals from one neuron to another.