High Blood Pressure
"Despite the reactions of some earlier reviewers, one of the reasons I prefer lisinopril to the others I&#039;ve tried is that I do NOT feel dizzy.  Nor do I feel groggy as I did on quinapril.  I do find that I don&#039;t sleep well, and it does contribute to impotence.  It also works really well, and I can get by on a smaller dose."