Selective serotonin reuptake inhibitor (SSRI)
Fatigue on Citalopram: causes, timeline, what helps
Fatigue is one of the most common side effect complaints across medication classes — and one of the hardest to evaluate, because the underlying condition often produces fatigue too. For Citalopram (Citalopram) at 10mg, 20mg, 40mg, separating drug-induced fatigue from condition-related fatigue is the key practical question.
Why Citalopram can cause fatigue
Medication-induced fatigue can come from direct sedative effects, mild blood pressure or heart rate effects, sleep disruption, mild anaemia, electrolyte shifts or shifts in mood/energy. Citalopram contributes through whichever of these mechanisms applies to it. Citalopram selectively inhibits the serotonin reuptake transporter, increasing synaptic serotonin availability with limited affinity for noradrenaline transporters or other receptors. Fatigue patterns differ: some appear in the first weeks and resolve, others persist or worsen over months.
Practical guidance
According to the prescribing information for Citalopram, fatigue is listed when documented and gives a baseline frequency. For users on Citalopram at 10mg, 20mg, 40mg, the practical steps are to confirm sleep is adequate, exclude untreated anaemia or thyroid disease, time the dose to minimise daytime sedation, and consult the prescriber if fatigue is persistent or worsening rather than self-managing.
Frequently asked questions
Will Citalopram make me tired? ▾
Some users on Citalopram report fatigue at 10mg, 20mg, 40mg, particularly in the first weeks. The prescribing information for Citalopram lists frequency. Most cases improve as the body adjusts; persistent fatigue deserves a workup.
When does fatigue from Citalopram go away? ▾
Fatigue from Citalopram typically improves within 4–8 weeks as the body adjusts to Citalopram. Persistent fatigue beyond that — particularly if worsening — is not normal and should be reviewed; the cause may be the medication, a separate condition, or an interaction with another drug at 10mg, 20mg, 40mg.
Products containing Citalopram
More on Citalopram
- With alcoholCitalopram and alcohol — is it safe to drink?
- With foodShould Citalopram be taken with food?
- Side effectsCitalopram side effects: common, rare and warning signs
- Dosage guideCitalopram dosage guide: how much to take and when
- OnsetHow fast does Citalopram start working?
- DurationHow long does Citalopram last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.