Contact CBD Guide


Your name:

Your email:

Your message:

CBD Specifics


Cannabidiol (CBD) is one of at least 113 active cannabinoids identified in the cannabis plant. It is a major phytocannabinoid, accounting for up to 40% of the plant's extract.

Cannabidiol Specs

CAS ID: 13956-29-1
Formula: C21H30O2
Biological half-life: 9 h
Bioavailability: 13–19% (oral), 11–45% (mean 31%; inhaled)
Molar mass: 314.4636
Melting point: 66 °C (151 °F)

Cannabidiol Molecular Structure


NHS Prescribe Cannabis

Medicinal marijuana has been prescribed on the NHS to an 11-year-old boy in what is believed to be the first case of its kind. (Read more…)


  • Clinical Trials

    University College, London

    Clinical Trial to Examine Cannabidiol (CBD) as a Pharmacological Treatment for Cannabis Dependence. (View trial…)

    Medical Research Council (MRC) (UK)

    A multiple randomised controlled trial of cannabinoids on spasticity in multiple sclerosis (MS). (View trial…)

    Medical Research Council (MRC) (UK)

    A clinical trial as proof of principle of the analgesic effectiveness of cannabinoids on postoperative pain. (View trial…)