1. Currently taking an angiotensin converting enzyme inhibitor (ACEi) or Angiotensin receptor blocker (ARB) <br/ >2. Prior reaction or intolerance to an ARB or ACEi <br/ >3. Blood pressure less than 100/70 mmHg <br/ >4. Potassium great than 5.0 mEq/L <br/ >5. Pregnancy or breastfeeding In females of childbearing age, unwillingness to use birth control for the duration of the study <br/ >6. Estimated Glomerular Filtration Rate (eGFR) of < 30ml/min/1.73 m2 <br/ >7. AST and/or ALT > 3 times the upper limit of normal <br/ >8. Severe volume depletion or severe acute kidney injury that, in the opinion of the investigator, would preclude administration of Losartan <br/ >9. Concurrent treatment <br/ >10. Inability to obtain informed consent <br/ >11. Pregnancy

1. Currently taking an angiotensin converting enzyme inhibitor (ACEi) or Angiotensin receptor blocker (ARB) <br/ >2. Prior reaction or intolerance to an ARB or ACEi <br/ >3. Blood pressure less than 100/70 mmHg <br/ >4. Potassium great than 5.0 mEq/L <br/ >5. Pregnancy or breastfeeding In females of childbearing age, unwillingness to use birth control for the duration of the study <br/ >6. Estimated Glomerular Filtration Rate (eGFR) of < 30ml/min/1.73 m2 <br/ >7. AST and/or ALT > 3 times the upper limit of normal <br/ >8. Severe volume depletion or severe acute kidney injury that, in the opinion of the investigator, would preclude administration of Losartan <br/ >9. Concurrent treatment <br/ >10. Inability to obtain informed consent <br/ >11. Pregnancy

N/A

N/A

1. Currently taking an angiotensin converting enzyme inhibitor (ACEi) or Angiotensin receptor blocker (ARB) <br/ >2. Prior reaction or intolerance to an ARB or ACEi <br/ >3. Blood pressure less than 100/70 mmHg <br/ >4. Potassium great than 5.0 mEq/L <br/ >5. Pregnancy or breastfeeding In females of childbearing age, unwillingness to use birth control for the duration of the study <br/ >6. Estimated Glomerular Filtration Rate (eGFR) of < 30ml/min/1.73 m2 <br/ >7. AST and/or ALT > 3 times the upper limit of normal <br/ >8. Severe volume depletion or severe acute kidney injury that, in the opinion of the investigator, would preclude administration of Losartan <br/ >9. Concurrent treatment <br/ >10. Inability to obtain informed consent <br/ >11. Pregnancy

1. Currently taking an angiotensin converting enzyme inhibitor (ACEi) or Angiotensin receptor blocker (ARB) <br/ >2. Prior reaction or intolerance to an ARB or ACEi <br/ >3. Blood pressure less than 100/70 mmHg <br/ >4. Potassium great than 5.0 mEq/L <br/ >5. Pregnancy or breastfeeding In females of childbearing age, unwillingness to use birth control for the duration of the study <br/ >6. Estimated Glomerular Filtration Rate (eGFR) of < 30ml/min/1.73 m2 <br/ >7. AST and/or ALT > 3 times the upper limit of normal <br/ >8. Severe volume depletion or severe acute kidney injury that, in the opinion of the investigator, would preclude administration of Losartan <br/ >9. Concurrent treatment <br/ >10. Inability to obtain informed consent <br/ >11. Pregnancy