The purpose of this study is to determine the density of DA transporters during prolonged cocaine abuse and during withdrawal from cocaine use. This aim will test the hypothesis that DA transporters are altered by cocaine abuse and reestablished during withdrawal.
Study Type
INTERVENTIONAL
Purpose
TREATMENT
Johns Hopkins University
Baltimore, Maryland, United States
Physiological changes in: heart rate and blood pressure
Subjective effects of cocaine inducements and withdrawal
Psychological effects
Effects of investigational drug
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