Why marijuana fans should not see approval for epilepsy drug as a win for weed
April 20, 2018
A Food and Drug Administration panel recommended approval of a drug made of cannabidiol on April 19 to treat two types of epilepsy. The FDA is expected to decide in June whether to accept the panel’s 13-0 recommendation to approve Epidiolex, which would would become the first drug made of cannabidiol, a compound in the cannabis plant, to gain approval from the FDA.
While the panel’s unanimous decision is not binding, the action will no doubt heighten public debate about the use of cannabidiol, medical marijuana, medical cannabis and hemp oil. Should cannabidiol, or CBD, or marijuana be legalized for medical purposes? What is the evidence that these products are beneficial? Are these products safe to use?
Those who support the use of marijuana for recreational or medicinal purposes might have found the timing of the panel’s ruling interesting. National Weed Day is April 20.
But weed is not cannabidiol, even though both come from cannabis.
As a professor of pharmacy with a special interest in epilepsy, I find it important that CBD may be a new option for the treatment of epilepsy. This new use has led me to carefully study published literature on CBD and discuss it as an option with patients who have epilepsy. Additionally, I have been involved with the American Epilepsy Society’s ongoing review of CBD as a possible treatment for epilepsy. From this perspective, I believe that CBD may offer benefits for patients with some types of epilepsy and possibly other disorders.
No high, but healing?
The cannabis plant produces hundreds of different compounds, many of which have differing effects in the body. Tetrahydrocannabinol, or THC, is the substance that is most known for its psychoactive effects, or the “high” associated with marijuana.
However, there are many other substances from the cannabis plant that also produce effects in the body. Many of these differ from THC in that they are not psychoactive – and they do not produce a “high.” Cannabidiol, or CBD, is one of those substances.
Compared to THC, CBD works at different receptors in the brain and other parts of the body. In this way, CBD is very different from THC and may offer new mechanisms of treatment. For this reason, CBD has received a great amount of attention as a possible treatment for many different disorders.
However, there are two well-designed, large studies that indicate CBD is effective in two different epilepsy syndromes. In these studies, about 40 percent of patients taking CBD had a significant reduction in specific types of seizures.
But caution still very much needed as CBD and CBN continue to have ‘red flags’ around their potential teratogenic and mutagenic properties!