Download PDFPDF
Medical cannabis and insomnia in older adults with chronic pain: a cross-sectional study
Compose Response

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Author Information
First or given name, e.g. 'Peter'.
Your last, or family, name, e.g. 'MacMoody'.
Your email address, e.g.
Your role and/or occupation, e.g. 'Orthopedic Surgeon'.
Your organization or institution (if applicable), e.g. 'Royal Free Hospital'.
Statement of Competing Interests


  • Responses are moderated before posting and publication is at the absolute discretion of BMJ, however they are not peer-reviewed
  • Once published, you will not have the right to remove or edit your response. Removal or editing of responses is at BMJ's absolute discretion
  • If patients could recognise themselves, or anyone else could recognise a patient from your description, please obtain the patient's written consent to publication and send them to the editorial office before submitting your response [Patient consent forms]
  • By submitting this response you are agreeing to our full [Response terms and requirements]

Vertical Tabs

Other responses

Jump to comment:

  • Published on:
    Cannabinoids impact on insomniacs with chronic pain: how cautious should we be?
    • Miguel G. Meira e Cruz, Sleep Medicine Physician European Sleep Center, Centro Cardiovascular da Universidade de Lisboa, Faculdade São Leopoldo Mandic, Bahiana (EBMSP)
    • Other Contributors:
      • Maria C. S. de Freitas, Medicine Student
      • Cristina Salles, Sleep Medicine Physician

    Title: Cannabinoids impact on insomniacs with chronic pain: how cautious we should be?
    This correspondence provides a comment on the recent review article by Humer et al. (Int. J. Mol. Sci. 2020, 21(19), 7244;
    Dear Editor,
    From the results of a recent cross-sectional study on patients with insomnia and chronic pain, published in the BMJ Support Palliat Care, Sznitman and colleagues have suggested that Medicinal Cannabis (MC) could have positive effects in sleep maintenance of patients experiencing chronic pain. Since both conditions, insomnia and chronic pain play an important role in the clinical arena, either related to their impact on the quality of life and associated comorbidities, but also because both have high rates of prevalence among the world population. This is a highly relevant finding, however, we believe that it deserves further consideration.
    Although insomnia majorly affects patients seeking care in clinics managing patients complaining of persistent pain1, other sleep conditions as obstructive sleep apnea (OSA) could also prevail in similar circumstances2. In fact, comorbid insomnia with sleep apnea (COMISA) frequently occurs and may lead to a more cautious clinical approach since this comorbid condition might have different etiological, pathophysiological, diagnostic, and therapeutic implications. Either Insomnia1 or OSA increases with age, wi...

    Show More
    Conflict of Interest:
    None declared.