Is Citalopram (citalopram) effective in managing cancer-related pain, sadness, and anxiety?

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Last updated: April 12, 2025View editorial policy

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From the Guidelines

Citalopram can be a valuable adjunct in managing emotional symptoms like sadness and anxiety in cancer patients, but it should be used under the guidance of a healthcare provider and as part of a comprehensive care plan that includes appropriate pain management. The use of citalopram for cancer-related emotional distress is supported by its mechanism of action, which involves increasing serotonin levels in the brain to help regulate mood and anxiety 1. However, it's crucial to consider the most recent and highest quality evidence when making treatment decisions. According to the most recent guideline from the Society for Integrative Oncology-ASCO, published in 2023, integrative approaches such as mindfulness-based interventions (MBIs), music therapy, yoga, relaxation, hypnosis, tai chi, and qigong may be recommended for managing anxiety and depression symptoms in adults with cancer 1. Key points to consider when using citalopram for cancer-related emotional distress include:

  • Starting with a low dose (10-20mg once daily) and gradually increasing as needed and under medical supervision.
  • Being aware of potential side effects such as nausea, dry mouth, increased sweating, and temporary sleep disturbances.
  • The importance of not stopping citalopram abruptly to avoid withdrawal symptoms.
  • The need for citalopram to be part of a comprehensive care plan that includes appropriate pain management for cancer pain, as it is not a pain medication itself. Given the complexity of cancer care and the potential for significant emotional distress, it is essential to work closely with a healthcare provider to determine the best approach for managing sadness, anxiety, and pain 1.

From the Research

Citalopram and Cancer Pain

  • There is no direct evidence in the provided studies that links citalopram to cancer pain management.
  • However, studies have shown that anxiety and pain are closely related in cancer patients 2.
  • Cancer pain management often involves a multidimensional approach, including pharmacotherapy, psychotherapeutic, and complementary/alternative treatments 2, 3.

Anxiety and Cancer Pain

  • Anxiety is a common comorbidity in cancer patients, particularly those experiencing pain 2.
  • The relationship between pain and anxiety is complex and bidirectional, with interactions occurring on physiologic and psychologic levels 2.
  • A comprehensive approach to care includes addressing both pain and anxiety in an individualized way 2, 3.

Current Concepts in Cancer Pain Management

  • Recent developments in oncology have helped to better control pain, but it still remains poorly controlled in 40% of patients 3.
  • The WHO analgesic ladder has been updated, and a chronic cancer pain taxonomy is now included in the International Classification of Diseases (ICD-11) 3.
  • Cancer pain management is now closer to the management of chronic non-cancer pain, aiming to improve patient's quality of life 3.

Opioids in Cancer Pain Management

  • Opioids are commonly used to treat moderate or severe cancer pain, but their use has been reassessed due to the opioids crisis 4, 3, 5.
  • Fentanyl is a synthetic opioid with advantageous chemical properties, including high lipophilicity and distinct pharmacokinetic properties, making it useful for managing breakthrough cancer pain (BTcP) 5, 6.
  • Transmucosal preparations of fentanyl have been shown to provide superior and more rapid pain relief compared to placebo and oral morphine in the management of BTcP 6.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Cancer pain and anxiety.

Current pain and headache reports, 2003

Research

Opioids for cancer pain - an overview of Cochrane reviews.

The Cochrane database of systematic reviews, 2017

Research

Treating breakthrough pain in oncology.

Expert review of anticancer therapy, 2018

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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