I was recently prescribed bupropion XL. My doctor started me on 150mg for a week and then today I started the 300mg dose. I'm also taking Klonopin as needed for anxiety. I'm having the worst panic attacks today, so much so that I needed to take two Klonopin 1/2mg, I felt like I was going to die. I'm wondering if the increased dose of bupropion has something to do with this?