Objective To study the effect of intracerebroventricular injection of norepinephrine (NE) and a receptor antagonist phentolamine on withdrawal syndrome in morphinistic rats.

目侧脑室注射去甲肾上腺素(NE)及其α受体断剂酚妥拉明对吗啡成瘾大鼠戒断影响。