Postpartum Hypertension Study

This study compares two blood pressure medications to find the safest and most effective way to treat very high blood pressure (severe-range hypertension) in women who have recently given birth (within 6 weeks postpartum). **You may be eligible if...** - You have recently given birth (up to 6 weeks postpartum) - Your blood pressure is severely elevated (systolic ≥160 or diastolic ≥110 mmHg) - You have a prior diagnosis of chronic hypertension or a hypertensive disorder of pregnancy (such as preeclampsia) **You may NOT be eligible if...** - You received either of the study medications in the past 24 hours - You have a known heart conduction problem (AV block) or moderate-to-severe asthma - You have another contraindication to the study medications Talk to your doctor to see if this trial is right for you.