Increase in catecholamine content of the rat adrenals after pretreatment with diazepam

The effect of subacute pretreatment with diazepam was studied on the catecholamine content of the heart and adrenals of the rat. The results show that at all doses studied, subacute treatment with diazepam increases the catecholamine content of the adrenal glands and there is no change in the noradrenaline content of the heart and brain.