I am now on my third week of taking celexa (citalopram) 10 mg. i take it in the morning.?

Talk with your MD: It sounds like you are off to a hopefully good start with citalopram 10 mg daily. The administration of this medication in the morning is a common time of administration. This is a lower dose of it and so we are approaching a point where the dose could be increased if there is any discernible benefit. Feel free to tell your prescribing physician about your impressions of the medication!