http://www.medications.com/effect/view/42795 I have been on lisinopril for over 3 years - 5 mg/day. I am a 52 year old female in great shape and exercise daily. For over a year now I have had muscle aches, muscle weakness, heart palpitations, foggy brain feeling, insomnia, fatigue, some tingling in e Mon, 06 Jul 2009 13:30:56 -0400 http://www.medications.com/effect/view/42795?item=21215 I cannot tell you how long your symptoms may continue. My PCP told me that it will take approximately 4 weeks for the medication to be totally out of your system. However, I am most interested in the "foggy brain feeling". Can you be more descriptive? http://www.medications.com/effect/view/42795?item=21215 Mon, 06 Jul 2009 16:14:06 -0400 http://www.medications.com/effect/view/42795?item=21226 Are you taking a statin drug also? Some of your symptoms could be attributed to that. http://www.medications.com/effect/view/42795?item=21226