5-(2-Aminopropyl)benzofuran and phenazepam demonstrate the possibility of dependence by increasing dopamine levels in the brain

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Although 5-(2-aminopropyl)benzofuran (5-APB) and 7-bromo-5-(2-chlorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one (phenazepam) are being used as recreational drugs, research on their dependence liability or mechanisms of action is lacking. The present study aimed to evaluate the behavioral effects and dependence liability of these drugs using conditioned place preference and self-administration paradigms in rodents. Additionally, biochemical techniques were used to assess the substance-induced alterations in synaptosome-released dopamine. While both of the tested substances elicited increases in conditioned place preference and dopamine, neither of them facilitated self-administration, suggesting that 5-APB and phenazepam have rewarding effects, rather than reinforcing effects.

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