Citalopram
Citalopram is an antidepressant medication classified as a selective serotonin reuptake inhibitor (SSRI). It works by increasing serotonin levels in the brain, a neurotransmitter that plays a key role in regulating mood and emotional stability. This medication is primarily prescribed to treat major depressive disorder and may help improve sleep, appetite, and overall daily functioning.
Citalopram is an SSRI antidepressant used to treat depression by increasing serotonin activity in the brain.
This medication carries a boxed (black box) warning — the strongest type of FDA warning. Review the full prescribing information before use.
Key facts at a glance
- ATC
- N06AB04
- RxNorm
- 2556
- Generic
- Citalopram
- Class
- atc-n06
- Brands
- Celexa
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- tablet, solution, capsule
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Primarily used to treat major depressive disorder (MDD). May also be prescribed for other conditions as determined by a healthcare provider.
Citalopram inhibits the reuptake of serotonin (5-HT) in the central nervous system, increasing serotonin levels in the synaptic space to enhance serotonergic neurotransmission and improve mood.
May take 1-4 weeks to achieve full therapeutic effects. Common side effects include nausea, dry mouth, and drowsiness. Not recommended for use with MAOIs or in patients with known QT prolongation. Always consult a healthcare provider before starting or stopping treatment.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy