http://www.medications.com/effect/view/39976 Within one hour after my first dose of Lisinopril I was having severe sinus congestion and mild dizziness. Since this seemed like a rather mild problem I naively continued to take my 10 mg dose every day. At first my blood pressure did drop a little, but Sun, 12 Apr 2009 23:03:14 -0400 http://www.medications.com/effect/view/39976?item=18820 I was on a med for 5+ years without incidence (can't remember the name) when all of a sudden I developed pulmonary issues and the Dr. switched me to Lisonpril. I experienced extreme agitation on Lisinopril and Norvasc was the next one the Dr. put me on. http://www.medications.com/effect/view/39976?item=18820