I just started celexa (citalopram) and i forgot to take it last night. can i take it this morning? also, i feel very weak from it. should i be on something else?

Celexa (citalopram): Antidepressants can take up to 4 weeks to show results on depression, so it is important to take it every day, and be patient to see the changes in mood and behavior. Fatigue and weakness can be a symptom of depression, and sleeping problems are common in depression. You can take the dose in the morning after missing one, and keep that schedule to reduce anxiety during the day.