metoprolol
A simple direct injection chromatographic procedure with fluorimetric detection       is successfully applied to the determination of mixtures of 4 diuretics       (amiloride, bendroflumethiazide, piretanide, and triamterene) and 6 beta-blockers       (acebutolol, atenolol, labetalol, metoprolol, nadolol, and propranolol), which       are usually administered in combinations for the treatment of hypertension, in       urine samples.
A simple direct injection chromatographic procedure with fluorimetric detection       is successfully applied to the determination of mixtures of 4 diuretics       (amiloride, bendroflumethiazide, piretanide, and triamterene) and 6  @OBJECT$  @PREDICAT$ , atenolol, labetalol,  @SUBJECT$ , nadolol, and propranolol), which       are usually administered in combinations for the treatment of hypertension, in       urine samples.