Enalapril 20MG Tablets relaxes the blood vessels as a result. This decreases blood pressure while increasing blood and oxygen delivery to the heart. Enalapril is also used in conjunction with other medications to treat congestive heart failure and reduce the number of heart-related hospital stays. Apart from these, it can be used as part of a multi-drug treatment. That means you'll have to combine it with other medications. This is very cost effective to use.