Role of stress in the exacerbation of chronic illness: effects of clonidine administration on blood pressure and plasma norepinephrine, cortisol, growth hormone and prolactin concentrations.

Systolic blood pressure (SBP), diastolic blood pressure (DBP), and plasma norepinephrine (NE), cortisol (CRT), growth hormone (GH) and prolactin (PRL) were studied before and after clonidine (2.5 micrograms/kg i.m.