Betaxolol Pathway


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.

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References

  1. Borchard, U. (1998). Pharmacological properties of beta-adrenoceptor blocking drugs. Journal of Clinical and Basic Cardiology, 1(1), 5-9.
  2. DiPiro, J.T., Talbert, R.L., Yee, G.C., Matzke, G.R., Wells, B.G, & Posey, M.L. (2005). Pharmacotherapy: A pathologic approach. (6 th ed) pp.207-208. New York: McGraw-Hill Medical Publishing Division.