Losartan for Sickle Cell Kidney Disease

"Adults and Children \>50 kg:~* Those with systolic blood pressure (SBP) ≥ 100 mm Hg at entry will start with 50 mg of oral losartan once daily. At the week 2 visit, losartan will be increased to 100 mg daily.~* Those with SBP \<100 mm Hg at entry will start with 25 mg of oral losartan once daily. Participants will return after 1 week for titration to 50 mg daily, if tolerated (i.e. SBP not lower than pre-losartan measurement by 10 mm Hg or more), and after 2 weeks to monitor blood pressure.~Children \<50 kg weight:~* Treatment will start with 25 mg oral Losartan once daily given as a morning dose. At the 2 week visit, Losartan will be increased to 50 mg daily. The dose will be increased to 100 mg once a body weight of 50 kg is achieved."