Are there any contraindications for cannabis use in fibromyalgia patients?

PostedFebruary 17, 2026

UpdatedFebruary 17, 2026

ByMy Patient Advice

Author: Julia Sutton, MSc | Reviewed by: Dr. Clarissa Morton, PharmD

While cannabis is gaining traction as a treatment for fibromyalgia, not every patient is a suitable candidate. There are several cannabis contraindications that must be considered, particularly for individuals with underlying conditions or those taking certain medications. Understanding these risks ensures better decision-making and improved patient safety.

Cannabis affects the nervous system, cardiovascular system, and liver, meaning it can cause complications in vulnerable groups. Before starting treatment, patients should carefully assess their own health risks and consult with a healthcare provider familiar with cannabinoid therapy.

Common cannabis contraindications to watch for

Here are some of the main reasons a patient might be advised against cannabis use for fibromyalgia:

History of Psychosis or Schizophrenia

Cannabis may worsen symptoms or trigger relapse in individuals with a history of serious mental health disorders.

Heart Conditions

People with heart disease or high blood pressure may face increased health risks due to cannabis’s potential to elevate heart rate or affect blood pressure.

Liver Impairment

Because cannabis is metabolised in the liver, patients with liver conditions may struggle to process cannabinoids safely.

Pregnancy or Breastfeeding

Cannabis is not recommended during pregnancy or while breastfeeding due to potential impacts on foetal or infant development.

Medication Interactions

Some drugs may interact poorly with cannabis, affecting liver enzymes or leading to sedation. This creates safety issues that require professional oversight.

Recognising cannabis contraindications and understanding the associated health risks ensures that patient safety remains a top priority. Always consult a knowledgeable healthcare provider before using cannabis as part of fibromyalgia treatment.

If you’re exploring cannabis treatment options for fibromyalgia, visit providers like LeafEase for personalised consultations and guidance tailored to your needs.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Medical Cannabis and Fibromyalgia .

Julia Sutton, MSc

Author

Julia Sutton is a clinical psychologist with a Master’s in Clinical Psychology and experience providing psychological assessment and therapy to adolescents and adults. Skilled in CBT, client-centered therapy, and evidence-based interventions, she has worked with conditions including depression, anxiety, bipolar disorder, and conversion disorder. She also has experience in child psychology, conducting psycho-educational evaluations and developing tailored treatment plans to improve learning and well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Clarissa Morton, PharmD

Reviewer

Dr. Clarissa Morton is a licensed pharmacist with a Doctor of Pharmacy degree and experience across hospital, community, and industrial pharmacy. She has worked in emergency, outpatient, and inpatient pharmacy settings, providing patient counseling, dispensing medications, and ensuring regulatory compliance. Alongside her pharmacy expertise, she has worked as a Support Plan & Risk Assessment (SPRA) officer and in medical coding, applying knowledge of medical terminology, EMIS, and SystmOne software to deliver accurate, compliant healthcare documentation. Her skills span medication safety, regulatory standards, healthcare data management, and statistical reporting.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewers's privacy.