Citalopram and Paroxetine affected food intake somewhat more markedly than alcohol. It could be implicated in Celexa insomnia. If you are experiencing persistent low mood, too much or too little sleep, lack of interest in normal daily activities, you should be very aware of any increase in suicidal thoughts or actions. Celexa is the newest antidepressant to be approved by theFDA. Even lead to suicide in a small number of patients.