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Changes in serum phosphate during β‐blockade in healthy men are not due to changes in the renal handling of phosphate

Abstract. Serum parathyroid hormone (PTH), phosphate, ionized calcium, magnesium, alkaline phosphatase and creatinine and the urinary excretion of phosphate and creatinine were studied after 1 and 3 weeks β‐blockade in 32 young healthy men given either atenolol at 50 mg. metoprolol at 100 mg, propranolol at 80 mg or placebo twice a day.