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Study breakdown

Medical cannabis for nerve pain has documented side effects but safety data remains incomplete for most products

ReviewModerate evidence
The takeaway

While nabiximols is the only cannabis product approved and pharmacovigilance-monitored for neuropathic pain, the wide variety of other cannabis preparations used for pain lack adequate safety data.

People using cannabis for nerve pain, healthcare providers prescribing medical cannabis, regulators evaluating cannabis product safety

Only one cannabis product (nabiximols) is approved and safety-monitored for neuropathic pain

What the researchers found

Only nabiximols (a balanced CBD/THC product) is approved by regulatory authorities for neuropathic pain and included in pharmacovigilance systems. The many other cannabis preparations widely used for chronic nerve pain are unmonitored, creating insufficient knowledge of their safety profiles.

Why it matters

Millions of people use various cannabis preparations for chronic nerve pain, but without systematic safety monitoring, the true risk-benefit profile of most products remains unknown.

The numbers in context

Nabiximols contains similar percentages of CBD and THC; approved in many European countries and Canada for neuropathic pain and MS-related spasticity

How the study worked

Review of published clinical studies reporting adverse reactions from cannabis use for neuropathic pain relief.

What this study cannot tell us

Safety data limited to published clinical studies, which may not capture all real-world adverse reactions. Heterogeneous cannabis products make direct comparisons difficult.

How to read the evidence

Review of clinical study data with focus on adverse reactions from cannabis pain treatments

When this study was published

Published in 2021. The landscape of available cannabis products for pain continues to expand.

The bigger picture

The gap between the single approved cannabis pain product and the dozens of unregulated products people actually use highlights a broader regulatory challenge as medical cannabis use expands globally.

Questions still open

  • Should cannabis preparations for pain be subject to the same pharmacovigilance requirements as approved medications? How do adverse effect profiles differ between various cannabis formulations used for pain?

Common questions

Is medical cannabis safe for nerve pain?
The safety profile is well-documented only for nabiximols, the sole approved cannabis product for neuropathic pain. Most other cannabis preparations used for pain lack systematic safety monitoring.
What is nabiximols?
Nabiximols is a cannabis-derived product containing balanced amounts of CBD and THC, approved in many European countries and Canada for neuropathic pain and spasticity related to multiple sclerosis.

Read the original research

Safety of Medical Cannabis in Neuropathic Chronic Pain Management.

Molecules (Basel, Switzerland), 26(20)

Citation

Bennici, Alessandra; Mannucci, Carmen; Calapai, Fabrizio; Cardia, Luigi; Ammendolia, Ilaria; Gangemi, Sebastiano; Calapai, Gioacchino; Griscti Soler, Daniel. (2021). Safety of Medical Cannabis in Neuropathic Chronic Pain Management.. Molecules (Basel, Switzerland), 26(20). https://doi.org/10.3390/molecules26206257

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