the influence of the alpha-adrenolytics , yohimbine and phentolamine , given in low doses thought to block presynaptic alpha-adrenoceptors , on the action of the tricyclic antidepressants imipramine , nortriptyline and amitriptyline in the behavioural despair test was investigated in wistar rats .
C0028420
nortriptyline
C0002600
amitriptyline