thirteen subjects with essential hypertension controlled on oral enalapril ( 20 mg/day ) therapy were entered into a protocol to assess serially 24-hour blood pressure , the renin-angiotensin-aldosterone system , angiotensin-converting enzyme activity , and plasma and urine enalaprilat drug levels , following both chronic oral administration of enalapril and its replacement with intravenous enalaprilat .
C0014025
enalapril
C0014027
enalaprilat