Does Citalopram cause chills? (3+ strategies)

In this article we will focus on answering the question: Does Citalopram cause chills? Additionally, we will explore the possible mechanism by which it causes chills as a side effect, the prevalence of causing chills and management strategies if you encounter this side effect.

Does Citalopram cause chills?

Citalopram may cause chills in some individuals; however, it is not a commonly reported side effect. Citalopram is a selective serotonin receptor inhibitor (SSRI) that is well-prescribed for the management of mood disorders such as depression.  While it is generally considered a safe and effective medication, some individuals have reported experiencing side effects while taking Citalopram, including chills (1,2,4).

While this side effect is not typically listed as a common side effect of Citalopram, it manifests as shivering, fevers, and goosebumps (1,2). It is usually a temporary side effect that tends to subside as the body adjusts to the medication. However, if you experience persistent chills or unusual symptoms while taking this medication, it is important to consult with your healthcare provider.

Furthermore, it is noteworthy to recognize that individual responses to this medication can vary, and some people may be more sensitive to specific side effects than others.

What does research suggest?

Citalopram impacts serotonin levels in the brain, and serotonin is involved in the body’s temperature regulation mechanisms (1). While the exact mechanism associated with Citalopram’s ability to cause chills is not fully understood, several studies have reported the following research findings.

Citalopram can influence body temperature regulation mechanisms along the hypothalamus-pituitary-thyroid (HPT) axis which can lead to chills in some individuals (5).

Additionally, Citalopram may lead to serotonin syndrome in rare cases. This condition may lead to hypothermia (chills) of hypothermia in some individuals.

A study involving a 37-year-old woman investigating the withdrawal effects of discontinuing Citalopram indicated that discontinuation symptoms of Citalopram involved chills, nausea, and insomnia among other side effects (2).

What factors influence Citalopram-induced chills?

Citalopram-induced chills can be influenced by several factors including:

  • Individual variation – As earlier mentioned, an individual’s response to Citalopram can vary. Some individuals may be more sensitive to Citalopram’s effects making them more prone to experiencing chills as a side effect.
  • Medication dosage – Higher doses of this medication may increase the likelihood of experiencing chills as a side effect.
  • Duration of use – Chills are common in the early stages of Citalopram treatment as the body adjusts to this medication.
  • Concurrent medications – The use of other medications while taking Citalopram can lead to interaction and potentially influence the side effects experienced like chills.
  • Underlying medical conditions – Pre-existing medical conditions can influence how citalopram is metabolized in the body and may contribute to the likelihood of experiencing chills while taking this medication.
  • Lifestyle factors – Dehydration and poor nutrition can affect how an individual regulates temperature and potentially chills.

What to do if Citalopram causes chills?

If you experience chills while taking Citalopram, it is essential to consult with your healthcare provider and report this side effect. They will assess your specific condition to determine whether the chills are a result of the medication or if other factors are contributing to this side effect.

If your doctor identifies Citalopram as the cause of the side effect, they may recommend adjusting your treatment plan by modifying the medication dosage or switching you to an alternative medication with a lower likelihood of causing this side effect.

Your doctor may also recommend discontinuing Citalopram by gradually tapering off the dose until you are no longer taking the medication.

In addition, to these measures, it is advisable to make lifestyle modifications, such as maintaining a balanced diet and staying well-hydrated, to reduce the likelihood of experiencing this side effect. Furthermore, you should avoid certain foods and beverages while taking this medication to prevent side effects like sweating, muscle spasms and chills.

Conclusion

While chills are a potential side effect of Citalopram, they do not affect everyone using this medication, and their mechanism is not fully understood. Therefore, it is important to consult with your healthcare provider to determine the best course of action.

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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 12]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK482222/

 

2.-

 

Jha MK, Rush AJ, Trivedi MH. When Discontinuing SSRI Antidepressants Is a Challenge: Management Tips. American Journal of Psychiatry [Internet]. 2018 Dec [cited 2023 Oct 19];175(12):1176–84. Available from: https://doi.org/10.1176/appi.ajp.2018.18060692

 

3.-

 

Hale MW, Lukkes JL, Dady KF, Kelly KJ, Paul ED, David Glenn Smith, et al. Interactions between whole-body heating and citalopram on body temperature, antidepressant-like behaviour, and neurochemistry in adolescent male rats. Behavioural Brain Research [Internet]. 2019 Feb 1 [cited 2023 Oct 19];359:428–39. Available from: https://doi.org/10.1016/j.bbr.2018.11.029

 

4.-

 

Mombereau C, Gur TL, Onksen J, Blendy JA. Differential effects of acute and repeated citalopram in mouse models of anxiety and depression. The International Journal of Neuropsychopharmacology [Internet]. 2009 Dec 14 [cited 2023 Oct 19];13(03):321. Available from: https://pubmed.ncbi.nlm.nih.gov/20003619

 

5.-

 

Hesketh S, Jessop DS, Hogg S, Harbuz MS. Differential actions of acute and chronic citalopram on the rodent hypothalamic–pituitary–adrenal axis response to acute restraint stress. Journal of Endocrinology [Internet]. 2005 Jun [cited 2023 Oct 19];185(3):373–82. Available from: https://doi.org/10.1677/joe.1.06074

 

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