Oh, please don't start on Klonopin as it is listed as an addittive drug and I had a friend to take it that made him a lot worse. His environmental Dr. took him off the Klonopin and had him on magnesium (along with some vitamins) IVs to get him up to a good level. I personally can tell the difference with magnesium alone-if you take sufficient amounts. I just kept adding a little more each day until I felt better. I take 340 mg (at night and again in the morning) of ionized magnesium. There are herbs and breathing technics that also help with anxiety.