ACE and hydrops fetalis: However, recent research has demonstrated that for women, a lower dose of some HF medications, such as angiotensin-converting-enzyme (ACE) inhibitors, angiotensin-receptor blockers (ARBs), and beta (β-) blockers, can be sufficient to achieve the same prognostic effects concerning the composite endpoint of time to all-cause mortality or hospitalization as compared to men with full dose [6].