Could cannabis reduce opioid use in gynecology and obstetrics? | Research

The takeaway

A growing body of evidence suggests cannabis may reduce opioid use for gynecological pain conditions, but its use during pregnancy carries potential risks that lack strong causal evidence.

Gynecologists, pain management specialists, and patients interested in opioid alternatives.

Opioid-sparing effects reported across multiple gynecological cancers

What the researchers found

Reports suggest cannabis use is associated with decreased opioid consumption in conditions including ovarian, uterine, endometrial, and cervical cancers, as well as chronic pelvic pain. However, cannabis use during pregnancy has been associated with adverse maternal and neonatal outcomes, though the lack of randomized controlled trials makes it difficult to establish direct causation.

Why it matters

Opioid use in gynecology carries significant addiction risk. If cannabis can safely reduce opioid dependence for pain management, it could offer an alternative, but pregnancy considerations add complexity.

The numbers in context

Review covers opioid-sparing effects across gynecologic malignancies (ovarian, uterine, endometrial, cervical cancers) and chronic pelvic pain.

How the study worked

Narrative review synthesizing available literature on cannabis as a potential opioid substitute in gynecological disorders and examining evidence on cannabis use during pregnancy.

What this study cannot tell us

No randomized controlled trials on cannabis as opioid substitute in gynecology. Association between cannabis and adverse pregnancy outcomes may be confounded by other factors. Review methodology is narrative, not systematic.

How to read the evidence

Narrative review of mostly observational evidence. No controlled trials on the opioid-substitution question in this population.

When this study was published

Published in 2022.

The bigger picture

The tension between cannabis's potential opioid-sparing benefits in gynecology and its uncertain risks during pregnancy reflects a broader challenge in women's health research.

Questions still open

Can cannabis safely be used for gynecological pain in non-pregnant women? What is the risk-benefit calculation for cannabis versus opioids in chronic pelvic pain?

Common questions

Can cannabis replace opioids for gynecological pain?

Some reports show decreased opioid use after cannabis initiation for conditions like chronic pelvic pain and gynecological cancers, but no randomized controlled trials have confirmed this as a safe and effective substitution strategy.

Is cannabis safe during pregnancy?

Studies have found associations between cannabis use and adverse pregnancy outcomes, but the review notes that without randomized controlled trials, a directly causal relationship has not been established.

Read the original research

Making a joint decision: Cannabis as a potential substitute for opioids in obstetrics and gynecology.

Best practice & research. Clinical obstetrics & gynaecology, 85(Pt B), 59-67

View on PubMed ↗Publisher’s paper ↗

Citation

Eichorn, Nicole L; Shult, Hannah T; Kracht, Kelsie D; Berlau, Daniel J. (2022). Making a joint decision: Cannabis as a potential substitute for opioids in obstetrics and gynecology.. Best practice & research. Clinical obstetrics & gynaecology, 85(Pt B), 59-67. https://doi.org/10.1016/j.bpobgyn.2022.07.002