... was believed to be causing me more anxiety and panic attacks. I still take klonopin .5mg 4 times a day and the psychiatrist wants me to add gabapentin for my anxiety as well because it is still not under control. Have any of you had a good report taking gabapentin for anxiety? He wants me to start with 300mg in the morning to see if it helps. Any input on this? Side effects on that dose? Any help would be appreciated. I just don't want to feel dizzy or foggy and want this anxiety feeling under control. I'm so frustrated! I know it is used off label so it just causes me to ask more questions.