... Was prescribed Celexa yesterday for anxiety issues. I've not had anxiety in the past but out of nowhere starting having anxiety after having asthma attacks so bad I was hospitalized a couple weeks ago. Was orig given Xanax to deal with them but they knock me out and I can't function. Was prescribed 10mg Celexa and told to just take half (5mg) the first week and then increase to the full pill the second week. I took in the am, as directed, but was knocked out before lunch and felt zombie like the rest of the day. Was going to try to take the second pill tonight so avoid the loopy feeling. How long will this last? The loopy feeling gives me anxiety, which doesn't help! I woke up this morning feeling very anxious and have been feeling that way all day.