EFFECTS OF α-AND β-BLOCKER ON ACUPUNCTURE TOLERANCE AND MORPHINE TOLERANCE

We reported previously that electroacupuneture (EA) analgesia could be enhanced by α-adrenoceptor blocking agent and depressed by β-blocking agent. In the present study, the effects of α- and β-blocker on the process of acupuncture tolerance (AT) and morphine tolerance (MT) were evaluated. 1. Development of AT and MT. In a