CBD Oil Research

6 peer-reviewed studies supporting this intervention. Evidence rating: B

6 Studies
0 RCTs
1 Meta-analyses
2016-2024 Year Range

Study Comparison

Study Year Type Journal Key Finding
Han K et al. 2024 Meta-analysis Psychiatry research Meta-analysis of 8 studies (316 participants) found CBD has a substantial significant effect on reducing anxiety with a large effect size (Hedges' g = -0.92)
Mohammed SYM et al. 2024 Systematic review Pain management nursing Systematic review found CBD may reduce chronic pain by 42-66%, though evidence is limited by heterogeneous study designs and small sample sizes
Villanueva MRB et al. 2022 Systematic review Cureus Systematic review of 12 publications found CBD shows promise for chronic pain management with a favorable safety profile, though more rigorous RCTs are needed
Shannon S et al. 2019 Study The Permanente Journal In 72 adults with anxiety and poor sleep, CBD (25-175mg/day) reduced anxiety scores in 79.2% and improved sleep in 66.7% within the first month
Vuckovic S et al. 2018 Study Frontiers in Pharmacology Review confirms cannabinoids including CBD show significant analgesic effects for chronic pain through multiple mechanisms, with CBD offering anti-inflammatory benefits without psychoactive side effects
Blessing EM et al. 2016 Study Neurotherapeutics Preclinical and human studies strongly support CBD as a treatment for anxiety disorders, with acute doses of 300-600mg reducing experimentally induced anxiety

Study Details

Han K, Wang J, Wang P, et al.

Psychiatry research

Key Finding: Meta-analysis of 8 studies (316 participants) found CBD has a substantial significant effect on reducing anxiety with a large effect size (Hedges' g = -0.92)
View Summary

This systematic review and meta-analysis evaluated the therapeutic potential of CBD for anxiety disorders. Eight articles with 316 participants were included. The meta-analysis revealed a substantial significant impact of CBD on anxiety with a considerable effect size (Hedges' g = -0.92, 95% CI -1.80 to -0.04).

Mohammed SYM, Leis K, Mercado RE, et al.

Pain management nursing

Key Finding: Systematic review found CBD may reduce chronic pain by 42-66%, though evidence is limited by heterogeneous study designs and small sample sizes
View Summary

This systematic review synthesized evidence on CBD effectiveness for chronic pain management. From 1,516 identified articles, 15 studies were included. The majority indicated pain reduction ranging from 42-66% with CBD alone and CBD combined with THC.

Villanueva MRB, Joshaghani N, Villa N, et al.

Cureus

Key Finding: Systematic review of 12 publications found CBD shows promise for chronic pain management with a favorable safety profile, though more rigorous RCTs are needed
View Summary

This systematic review evaluated the efficacy, safety, and regulatory landscape of CBD for chronic pain. Five databases were searched, applying inclusion criteria for adults with pain lasting over 3 months. Twelve publications were eligible, suggesting CBD may be effective for chronic pain with acceptable safety.

Shannon S, Lewis N, Lee H, Hughes S

The Permanente Journal

Key Finding: In 72 adults with anxiety and poor sleep, CBD (25-175mg/day) reduced anxiety scores in 79.2% and improved sleep in 66.7% within the first month
View Summary

This large retrospective case series from a psychiatric clinic examined CBD as an adjunct to standard treatment for anxiety and sleep complaints. Results showed rapid improvements in both anxiety and sleep scores with good tolerability, providing real-world evidence for CBD's therapeutic potential.

Vuckovic S, Srebro D, Vujovic KS, Vucetic C, Prostran M

Frontiers in Pharmacology

Key Finding: Review confirms cannabinoids including CBD show significant analgesic effects for chronic pain through multiple mechanisms, with CBD offering anti-inflammatory benefits without psychoactive side effects
View Summary

This comprehensive review examined the mechanisms and clinical evidence for cannabinoids in chronic pain management. The authors concluded that cannabinoids, including non-psychoactive CBD, represent a promising approach for treating various chronic pain conditions through their effects on the endocannabinoid system and inflammatory pathways.

Blessing EM, Steenkamp MM, Manzanares J, Marmar CR

Neurotherapeutics

Key Finding: Preclinical and human studies strongly support CBD as a treatment for anxiety disorders, with acute doses of 300-600mg reducing experimentally induced anxiety
View Summary

This comprehensive review examined evidence from preclinical, human experimental, clinical, and epidemiological studies on CBD for anxiety. The authors found consistent anxiolytic effects across multiple anxiety paradigms and disorders, supporting CBD as a promising treatment option.

Evidence Assessment

B Moderate Evidence

This intervention has moderate evidence from some randomized trials and consistent observational data, though more research would strengthen conclusions.