“Mice treated repeatedly with d-amphetamine developed strong locomotor sensitization that was reduced by pretreatment with α2-adrenoceptor antagonists.”
“These results … that α2-adrenoceptor antagonists modulate the … of d-amphetamine in a manner not explicable by their enhancing actions on noradrenaline and dopamine release, and may thus provide a … approach to the treatment of motor complications caused by dopaminergic agents, such as dyskinesias, and perhaps also drug dependence.”