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alpha adrenergic blockers; adrenoceptor-blocking agents; alpha blockers
These drugs stop the stimulation of alpha-adrenergic receptors at the nerve endings of the sympathetic nervous system by hormones with adrenaline-like characteristics.
A synthetic or natural drug that stimulates beta or sympathetic receptors.
beta-adrenergic blocking agent
A substance that interferes with the transmission of stimuli through pathways that normally allow sympathetic nervous inhibiting stimuli to be effective.
These agents are used in treating hypertension, angina, certain cardiac arrhythmias, and postmyocardial infarction.
They may also be helpful in preventing migraine and in treating stage fright and benign essential tremor.
A site in autonomic nerve pathways wherein inhibitory responses occur when adrenergic agents; such as, norepinephrine and epinephrine are released.
A hormone, secreted by the adrenal gland and similar to epinephrine, that is the principal neurotransmitter of sympathetic nerve endings supplying the major organs and skin.
It increases blood pressure and rate and depth of breathing, raises the level of blood sugar, and decreases the activity of the intestines.