Does Citalopram cause water retention? (3+ risk factors)

In this article, we will discuss whether Citalopram causes water retention. Furthermore, we will discuss what research suggests, what risk factors influence this side effect, and what to do if you experience this side effect.

Does Citalopram cause water retention?

Yes, using Citalopram (Celexa) may cause water retention in some individuals. Although it is not commonly reported, water retention (also known as oedema) is listed as a rare side effect of this medication (1,2).

Citalopram, a selective serotonin receptor inhibitor (SSRI) medication that primarily increases serotonin levels in the brain and peripheral system, is typically the preferred treatment for managing depressive diorders, anxiety disorders and obsessive-compulsive disorder (OCD).

However, there has been growing interest in investigating its potential side effects and impact on fluid balance in the body in some individuals (1,2,3).

Water retention (oedema), defined as swelling caused by accumulation of the interstitial fluid, is typically a consequence of prolonged use of SSRI antidepressant medications, including Citalopram (3,4).

It is essential to understand that several individual-specific factors influence the likelihood of experiencing oedema, and not everyone taking this medication will encounter it.

If you do experience water retention, manifesting as weight gain, swelling, skin discolouration, and tenderness, while taking Citalopram, it is advisable to seek immediate medical assistance from your healthcare provider.

What does research suggest?

While research studies on Citalopram and water retention are limited, and current findings are inconclusive, several studies have proposed that the mechanism of Citalopram-induced water retention could be linked to alterations in serotonin levels in the body.

As previously mentioned, SSRI medications like Citalopram influence serotonin levels in the brain and peripheral system.

Serotonin plays a crucial role in regulating various body functions, including the control of blood pressure and vascular tone. Serotonin imbalance may potentially affect the body’s ability to manage fluid balance potentially leading to oedema (1,2,3).

Moreover, Citalopram may affect the hypothalamus-pituitary-adrenal axis (HPA axis) directly influencing the synthesis and release of the antidiuretic hormone and potentially causing SIADH.

A study that investigated the syndrome of inappropriate antidiuretic hormone (SIADH) associated with Citalopram use hypothesized that Citalopram-induced water retention may be due to the disruption of water and electrolyte balance linked to SIADH (5).

What factors can contribute to Citalopram-induced water retention?

The likelihood of developing water retention while taking Citalopram varies from person to person and it may be influenced by factors such as (1,2,3):

  • Individual response: Individuals more sensitive to Citalopram are more likely to experience its side effects such as oedema.
  • Dose: Higher doses of Citalopram are more likely to cause side effects such as water retention.
  • Duration of use: Long-term use of Citalopram may increase the risk of developing water retention.:
  • Pre-existing medical conditions: Underlying health conditions such as heart and kidney problems increase the risk of developing oedema while taking Citalopram.
  • Medication interactions: Citalopram can interact with other medications and potentially cause water retention.
  • Lifestyle factors: Lifestyle choices such as a high-sodium diet, stress and insufficient physical activity may contribute to water retention.

What to do if Citalopram causes water retention?

If you are taking this medication, it is advisable to be aware of its benefits and potential effects, including water retention. Therefore, it is important to take the following steps to minimize and manage water retention while taking this medication (3,4,5)

Consult your healthcare provider:

If you are taking Citalopram and experience symptoms of water retention, it is crucial to promptly seek medical assistance from your healthcare provider. They will conduct a comprehensive assessment of your specific situation and determine if Citalopram is the cause of your oedema.

If it is, your doctor may consider adjusting your medication dosage to reduce the likelihood of experiencing water retention. Additionally, they may recommend switching to an alternative antidepressant, such as Mirtazapine, which is less likely to induce water retention.

In severe cases, your doctor may recommend discontinuing the medication under their supervision to minimize the risk of withdrawal symptoms.

Lifestyle modifications:

Adjusting lifestyle factors can help alleviate water retention. These measures may include:

  • Dietary changes include reduced sodium intake, increased potassium intake, and proper hydration.
  • Engaging in regular physical activity improves circulation and reduces water retention.
  • Managing stress through relaxation techniques to reduce its effect on fluid balance.

Conclusion

Although the exact mechanism is not fully understood, Citalopram has the potential to induce water retention in certain individuals. It is crucial for individuals taking Citalopram to be aware of this side effect and to maintain regular and frequent consultations with their doctor.

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References

1.-

Sharbaf Shoar N, Fariba K, Padhy RK. Citalopram [Internet]. PubMed. Treasure Island (FL): StatPearls Publishing; 2021 [cited 2023 Oct 11]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK482222/

 

2.-

Holland S, Townley S, Summerfield R. Citalopram – a risk factor for postoperative hyponatraemia. Anaesthesia [Internet]. 2003 Apr 15 [cited 2023 Oct 11];58(5):491–2. Available from: https://doi.org/10.1046/j.1365-2044.2003.03154_14.x

 

3.-

Tuman TC, Tuman B. A rare side effect of escitalopram: bilateral peripheral edema. Archives of Clinical Psychiatry (São Paulo) [Internet]. 2018 Apr [cited 2023 Oct 11];45(2):51–2. Available from: https://www.scielo.br/j/rpc/a/vPXjbmB7sn5cGYPYMTSYPyt/

 

4.-

Lent-Schochet D, Jialal I. Physiology, Edema [Internet]. PubMed. Treasure Island (FL): StatPearls Publishing; 2022 [cited 2023 Oct 11]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK537065/

 

5.-

Kirpekar VC, Joshi PP. Syndrome of inappropriate ADH secretion (SIADH) associated with citalopram use. Indian Journal of Psychiatry [Internet]. 2005 [cited 2023 Oct 11];47(2):119–20. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2918297/

 

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