http://www.medications.com/effect/view/12556 Just diagnosed with high blood pressure. Dr. gave me Lotrel 5/10 to try it out. About 3 AM I developed a similar effect of roaring/ringing/hollowness in my head. I can't clear it out. It's upsetting me and annoying me. I will call the dr. today after re Thu, 24 Apr 2008 21:13:16 -0400 http://www.medications.com/effect/view/12556?item=7597 I have been taking lotrell 10/20 for six months and developed a ringing in the ears. Myquestion to you is what was your outcome. did you stop taking lotrell and did this ringing go away. thank you. http://www.medications.com/effect/view/12556?item=7597