Been taking 5mg now for 6 days after taking evry other day for 2 weeks. I take it in the evening and soon after taking, my chest feels like its in a vice. im asthmatic anyway and have a bit of a chest infection. been taking my peak flow and readings are good, so i know this is an anxiety symptom. have become concerned though that breathing issues were possibly an allergic reaction and not anxiety. i could contact gp but am afraid that he may say stop taking these and i will have gone thru this hell for nothing. my anx is quite high before taking med and has got much higher the more days that go by. just hope this is a transient side effect that will calm as the anxiety subsides. just want something to work for my anx/dep because i have suffered for long enough.