high blood pressure
"I had a horrible experience. I have high blood pressure and I had been using atenolol for years. I lost my health coverage and had to go to a clinic and was prescribed Lisinopril. I took one dose and my heart started beating so fast and I had trouble sitting still. I became very anxious and nervous and my heart rate was crazy. I stopped taking it right away but it still took about 4 days to get out of my system. It was very scary."