... anxiety. I took the medication for @ 4 weeks and tapered down and quit taking it around Thanksgiving. I felt fine. However last week I started feeling very anxious in the mornings and felt my bp was high. I have been under a lot of stress recently but just read that if you come off a beta blocker to soon there are side effects. I quit seeing the doctor who prescribed the rx and am worried that I didn't taper off long enough, My question is that is 4 weeks long enough to cause problems when the dosage is stopped?