Abstract
Clonidine administered to mice induced hypothermia and this effect was antagonized by a single dose of the followingβ-agonists: salbutamol, isoprenaline and terbutaline. The effect of theseβ-agonists was completely antagonized by propranolol. The effect of terbutaline on reserpine-and apomorphine-induced hypothermia was also studied; it causing a slight but significant reversal of hypothermia. This effect was also blocked by propranolol. The results obtained here showed theseβ-agonists behave in a manner similar to other antidepressant drugs. The data reinforces the view thatβ-stimulation is of great importance in antidepressant action.