To compare the effects of 40 mg once-daily Torsemide ER to 40 mg twice-daily Furosemide on changes in body weight after two weeks of treatment. To compare the frequency and volume of urine passed in 24 hours. To compare the patients' quality of life and levels of natriuretic peptide between the two sets of patients.
To compare the effects of 40 mg once-daily Torsemide ER to 40 mg twice daily Furosemide on 24-hour sodium excretion.