How Long For Citalopram To Work?
How Long For Citalopram To Work? Response and effectiveness. Peak blood levels of citalopram occur within 1 to 6 hours, with an average time of 4 hours. Initial effects for depression seen within 1 to 2 weeks; however, it may take up to 4-6 weeks of regular dosing before the maximum antidepressant effects are seen.