Mood changes on Celexa: what to expect
Mood changes — anxiety, low mood, irritability, emotional blunting — are an under-recognised but important side-effect category for many medications. Whether Celexa (Citalopram) at 10mg, 20mg, 40mg causes mood changes depends on Citalopram and the indication. This page focuses on the practical pattern, what is normal and what calls for review.
Documented mood effects of Celexa
For some medications in Anti-Depressants, mood changes are part of the central indication. For others, mood changes are listed in the prescribing information for Citalopram as side effects in a small subset of users, sometimes appearing in the first weeks of therapy and resolving spontaneously. Citalopram selectively inhibits the serotonin reuptake transporter, increasing synaptic serotonin availability with limited affinity for noradrenaline transporters or other receptors.
When mood changes need review
Mild irritability or transient low mood in the first weeks on Celexa at 10mg, 20mg, 40mg is common and often improves. Persistent low mood, new anxiety that interferes with daily life, suicidal thoughts, or any sudden severe mood change warrants prompt review with the prescriber. According to current guidelines, suicidal ideation while starting any new medication should be treated as urgent.
Frequently asked questions
Can Celexa cause anxiety or depression? ▾
In some users yes — the prescribing information for Citalopram lists mood-related effects as possible side effects in a subset of users. The frequency varies by medication; the prescriber can review whether Celexa or another factor is the most likely contributor at 10mg, 20mg, 40mg.
How long do mood side effects from Celexa last? ▾
Most mood side effects either resolve in the first weeks of Celexa as the body adjusts, or persist and call for clinical review. Persistent severe mood changes are not something to wait out alone; the prescriber should hear about them.
More on Celexa
- With alcoholCelexa and alcohol — is it safe to drink?
- With foodShould Celexa be taken with food?
- Side effectsCelexa side effects: common, rare and warning signs
- Dosage guideCelexa dosage guide: how much to take and when
- OnsetHow fast does Celexa start working?
- DurationHow long does Celexa last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.