Comprehensive guide to Epidiolex (CBD) for treating childhood epilepsy

Epidiolex, the first FDA-approved plant-derived CBD medication, significantly reduces seizures in Dravet and Lennox-Gastaut syndromes but has important side effects and drug interactions that require careful management.

RTHC-02370ReviewStrong Evidence2020RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Review
Evidence
Strong Evidence
Sample
Not reported

What This Study Found

Epidiolex was FDA-approved June 2018 for patients aged 2+ with Dravet or Lennox-Gastaut syndrome. Common side effects include somnolence, decreased appetite, and diarrhea. Significant drug interactions occur with clobazam (increased active metabolite levels) and valproate (hepatotoxicity risk). CBD is metabolized primarily by CYP3A4 and CYP2C19, creating numerous potential interactions with other antiepileptic drugs.

Key Numbers

FDA approved June 25, 2018. Approved for ages 2+. Metabolized by CYP3A4 and CYP2C19. Significant interactions with clobazam and valproate.

How They Did This

State-of-the-art review covering CBD history, pharmacology, toxicology, clinical evidence, side effects, and drug-drug interactions in epilepsy.

Why This Research Matters

Patients with Dravet and Lennox-Gastaut syndromes have limited treatment options. Understanding both the benefits and the interaction risks of Epidiolex is essential for safe prescribing.

The Bigger Picture

As the first plant-derived CBD product with FDA approval, Epidiolex bridges the gap between medical cannabis and conventional pharmaceuticals, but its complex interactions highlight the importance of pharmaceutical oversight.

What This Study Doesn't Tell Us

Limited long-term efficacy and safety data. Drug interaction studies are ongoing. Review reflects knowledge at time of publication.

Questions This Raises

  • ?Will long-term CBD use in children reveal new safety concerns?
  • ?Can dosing strategies minimize hepatotoxicity risk when combined with valproate?

Trust & Context

Key Stat:
First FDA-approved plant-derived CBD medication
Evidence Grade:
Comprehensive review of randomized controlled trial data supporting FDA approval.
Study Age:
2020 review of product approved in 2018.
Original Title:
Emerging Use of Epidiolex (Cannabidiol) in Epilepsy.
Published In:
The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG, 25(6), 485-499 (2020)
Database ID:
RTHC-02370

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study

Summarizes existing research on a topic.

What do these levels mean? →

Frequently Asked Questions

What is Epidiolex used for?

Epidiolex is an FDA-approved purified CBD medication for patients aged 2 and older with Dravet syndrome or Lennox-Gastaut syndrome, two severe forms of childhood epilepsy.

Does Epidiolex interact with other seizure medications?

Yes, significant interactions occur with clobazam (increasing sedation) and valproate (increasing liver toxicity risk). CBD is metabolized by CYP3A4 and CYP2C19, creating potential interactions with many other drugs.

Read More on RethinkTHC

Cite This Study

RTHC-02370·https://rethinkthc.com/research/RTHC-02370

APA

Abu-Sawwa, Renad; Scutt, Brielle; Park, Yong. (2020). Emerging Use of Epidiolex (Cannabidiol) in Epilepsy.. The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG, 25(6), 485-499. https://doi.org/10.5863/1551-6776-25.6.485

MLA

Abu-Sawwa, Renad, et al. "Emerging Use of Epidiolex (Cannabidiol) in Epilepsy.." The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG, 2020. https://doi.org/10.5863/1551-6776-25.6.485

RethinkTHC

RethinkTHC Research Database. "Emerging Use of Epidiolex (Cannabidiol) in Epilepsy." RTHC-02370. Retrieved from https://rethinkthc.com/research/abu-sawwa-2020-emerging-use-of-epidiolex

Access the Original Study

Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.

This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.