Original sentence: It has specificity towards the presynaptic alpha-2 receptors in the vasomotor center in the brainstem.It works by stimulating α2 receptors in the brain, which decreases cardiac output and peripheral vascular resistance, lowering blood pressure.The main use for this medication is to treat high blood pressure
Edited sentence: Clonidine treats high blood pressure by stimulating α2 receptors in the brain, which decreases cardiac output and peripheral vascular resistance, lowering blood pressure.It has specificity towards the presynaptic α2 receptors in the vasomotor center in the brainstem