Cocitalopram celexa:
Celexa appears to be safe to use on a long-term basis and may cause less withdrawal when use is stopped. Celexa appears to be safe to use on a long-term basis and may cause less withdrawal when use is stopped. You stop taking Celexa, you must wait at least 14 days before you start taking an antidepressant, especially if you are younger than twenty years old. Celexa insomnia may be a side effect from this drug prolonging serotonin's action within the brain. Do not take Celexa together with a monoamine oxidase inhibitor. Citalopram is an antidepressant in a group of drugs called selective serotonin reuptake inhibitors.