REVIEW Betaxolol selectively blocks catecholamine stimulation of beta(1)-adrenergic receptors in the heart and vascular smooth muscle. This results in a reduction of heart rate, cardiac output, systolic and diastolic blood pressure, and possibly reflex orthostatic hypotension. Betaxolol can also competitively block beta(2)-adrenergic responses in the bronchial and vascular smooth muscles, causing bronchospasm.
Canotilho J, Castro RA: The structure of betaxolol studied by infrared spectroscopy and natural bond orbital theory. Spectrochim Acta A Mol Biomol Spectrosc. 2010 Aug;76(3-4):395-400. Epub 2010 Apr 4.
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