Recent Examples of truce from the Web. 1  And Cersei, inevitably, sets her own trap: forging a false truce with Daenerys, but secretly plotting to hire the Golden Company and retake the south of Westeros while Daenerys and her dragons are busy with the White Walkers. â , GQ, Game of Thrones, 28 Aug. 2017.
Beta-blockers can also block the stimulation of the heart form electrical impulses-they can control irregular heartbeats-thus lowering the activity of the heart and slowing down the heart rate. Hypertension-beta-blockers lower blood pressure by slowing down the heart rate, as well as reducing the force of the heart. Blood still gets to all parts of the body, but at reduced pressure. Glaucoma-pressure within the eyeball is reduced with beta-blocker eye drops.
adrenergic blocking agents prevent the activation of adrenergic receptors. They may be alpha-blockers, e.g. ergot, or beta-blockers such as propranolol. adrenergic blocking agent. a drug that blocks the secretion of epinephrine and norepinephrine at the postganglionic nerve endings of the sympathetic nervous system.y blocking these adrenergic substances, which cause constriction of blood vessels and increased cardiac output, adrenergic blocking agents produce a dilatation of the blood vessels and a decrease in cardiac output. adrenergic nerves. see adrenergic (1) (above). adrenergic nervous system. see sympathetic nervous system.