http://www.medications.com/effect/view/35673 Hi, I have just started Lisinopril today, and wanted to search the internet on side effects. I was taking atenolol and felt I was on the right blood pressure med because it was working. Well I started getting tired after 4 years on atenolol, it started 1 mo Wed, 15 Oct 2008 06:16:11 -0400 http://www.medications.com/effect/view/35673?item=13452 Your pulse was slow because Atenolol is a beta blocker and beta blockers drop the heart rate. Your doc should have had you monitoring your hear rate. Please be careful with the Lisinopril. http://www.medications.com/effect/view/35673?item=13452 Fri, 17 Oct 2008 16:45:03 -0400 http://www.medications.com/effect/view/35673?item=13561 I am posting my lisinpril side effects after taking for a week and I really have none except the throat is sore and only slightly and not all the time and I get a little light headed when I stand sometimes. I have been drinking green tea on ice for comfort http://www.medications.com/effect/view/35673?item=13561