NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Prescription·Evidence index

Cannabis (THC-Dominant) and Oxycodone: what the published research says

PubMed indexes 5 records that name Cannabis (THC-Dominant) and Oxycodone together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to Cannabis (THC-Dominant) and Oxycodone. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.

The research

5 studies naming Cannabis (THC-Dominant) and Oxycodone.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

Cannabis-opioid interaction in the treatment of fibromyalgia pain: an open-label, proof of concept study with randomization between treatment groups: cannabis, oxycodone or cannabis/oxycodone combination-the SPIRAL study.

Trials · 2023 · PMID 36707893

Randomized Controlled Trial

“The trial is designed to determine whether self-titration of oxycodone and cannabis will reduce side effects in chronic pain patients with fibromyalgia. TRIAL REGISTRATION {2A AND 2B}: EU trial register 2019-001861-33, URL https://www.clinicaltrialsregister.eu , on July 17, 2019; World Health Organization International Clinical Trials Research Platform NL7902, URL https://trialsearch.who.int , on July 26, 2019.”

van Dam et al. · From the abstract

Names both Cannabis (THC-Dominant) and Oxycodone in its title.

Impact of co-administration of oxycodone and smoked cannabis on analgesia and abuse liability.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018 · PMID 29463913

Randomized Controlled TrialResearch Support, N.I.H., Extramural

“Cannabis enhances the analgesic effects of sub-threshold oxycodone, suggesting synergy, without increases in cannabis's abuse liability. These findings support future research into the therapeutic use of opioid-cannabinoid combinations for pain.”

Cooper et al. · From the abstract

Names both Cannabis (THC-Dominant) and Oxycodone in its title.

Cannabis combined with oxycodone for pain relief in fibromyalgia pain: a randomized clinical self-titration trial with focus on adverse events.

Frontiers in pain research (Lausanne, Switzerland) · 2024 · PMID 39654798

“Cannabis combined with oxycodone offered no advantage over either treatment alone, except for a reduction in opioid tablet intake; however, the overall drug load was the highest in the combination group. Moreover, cannabis was poorly tolerated and led to treatment discontinuation in one-third of participants treated with cannabis.”

van Dam et al. · Authors' conclusion

Names both Cannabis (THC-Dominant) and Oxycodone in its title.

The CANBACK trial: a randomised, controlled clinical trial of oral cannabidiol for people presenting to the emergency department with acute low back pain.

The Medical journal of Australia · 2021 · PMID 33846971

Comparative StudyRandomized Controlled Trial

“CBD was not superior to placebo as an adjunct medication for relieving acute non-traumatic low back pain in the emergency department.”

Bebee et al. · Authors' conclusion

Names Cannabis (THC-Dominant) and Oxycodone together in an interaction, co-administration, or pharmacokinetic context.

Cannabinoid-opioid interaction in chronic pain.

Clinical pharmacology and therapeutics · 2011 · PMID 22048225

Controlled Clinical TrialResearch Support, N.I.H., Extramural

“We therefore concluded that vaporized cannabis augments the analgesic effects of opioids without significantly altering plasma opioid levels. The combination may allow for opioid treatment at lower doses with fewer side effects.”

Abrams et al. · From the abstract

Names Cannabis (THC-Dominant) and Oxycodone together in an interaction, co-administration, or pharmacokinetic context.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Cannabis (THC-Dominant), Oxycodone, and several hundred other substances.

The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.