“Abstract Pretreatment of rats with caffeine potentiated the actions of the p-chloro- and p-methyl analogues of amphetamine and benzphetamine as depressants of deprivation-induced food consumption, although no such effects were seen with the unsubstituted compounds.”
“ Caffeine , in combination with benzphetamine , caused a slight decrease in avoidance responding.”
“In contrast, combined dosage of caffeine potentiated the actions of p-methyl-amphetamine, or benzphetamine , drugs normally showing decreased avoidance responding.”