http://www.medications.com/effect/view/23333 I am a 34-year old women who started 50 mg of Toprol-XL 4 days ago for a rash of panic attacks I experienced earlier this week, after having high blood pressure and occasional panic attacks in the last 3 months. Since then, I've had migranes for the past 2 Sun, 02 Sep 2007 15:51:39 -0400 http://www.medications.com/effect/view/23333?item=1520 Definitely call your doctor, I would think 4 days and it wouldnt produce alot of withdrawal,but not sure. Ask him about calcium channel blockers as an alternative. Also ask about a shortterm anxiety med like ativan. Good Luck. http://www.medications.com/effect/view/23333?item=1520 Tue, 04 Sep 2007 10:32:49 -0400 http://www.medications.com/effect/view/23333?item=1542 That is very interesting. I was fine on Toprol XL, except that I had joint pain and insomnia. Dr. switched me to the generic metorpolol and then I began having the panic attacks, rapid heart beat, blocked ears, and nose bleeds. Just called Dr. and said http://www.medications.com/effect/view/23333?item=1542