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What is the difference between Celexa and Lexapro?

Medically reviewed by Carmen Pope, BPharm. Last updated on Aug 15, 2024.

Official Answer by Drugs.com

Both Celexa and Lexapro belong to the class of medicines called selective serotonin reuptake inhibitors (SSRIs) and are FDA approved to treat depression.

The main differences between Celexa and Lexapro are:

Because both drugs are SSRIs, they have many similarities, such as:

Read next

Why does Lexapro cause weight gain?

Lexapro may cause weight gain because it blocks the serotonin transporter, which increases levels of serotonin in the brain, but also increases appetite and decreases metabolism. Research has shown approximately 40% of people taking antidepressants such as Lexapro will gain 7% or more of their starting body weight. The weight gain experienced with Lexapro is a lot less than that reported with other antidepressants such as paroxetine, mirtazapine, or doxepin but more than fluoxetine. Continue reading

When is the best time to take Lexapro?

Lexapro is usually taken once a day and you can take it either in the morning or at night. Continue reading

How long does it take for Lexapro to work?

Even though it takes Lexapro only a few hours to increase serotonin levels within the brain, it may take several weeks to start working. Signs that Lexapro has started working include an improvement in your sleep, energy, or appetite. In some, this may happen in as little as 1 to 2 weeks. Relief from symptoms, such as a depressed mood or a lack of interest in activities you used to enjoy, may take up to 6 to 8 weeks to fully improve. Continue reading

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