- Cannabidiol oil reduces the frequency and severity of intractable seizures in adults and kids with epilepsy.
- Cannabidiol is one among the 113 active cannabinoids identified in cannabis.
- There appears to be an optimal CBD dose range where the patient achieves maximum benefit.
Cannabidiol oil or CBD oil, reduces the frequency and severity of seizures in children and adults with severe, intractable epilepsy, according to findings presented by researchers from the University of Alabama at Birmingham at the American Epilepsy Society 70th Annual Meeting.
Intractable epilepsy is a seizure disorder in which a patient's seizures fail to come under control with treatment. These seizures are sometimes also called "uncontrolled" or "refractory."
CBD provided a significant reduction in frequency of seizures for a majority of the patients in the study, and that approximately two-thirds of patients saw a greater than 50 percent reduction in severity.
After one month of beginning CBD therapy, 68 percent of the patients had experienced a greater than 25 percent reduction in seizure frequency; 58 percent had a greater than 50 percent reduction; 36 percent had a greater than 75 percent reduction and 9 percent were seizure-free. Those results were maintained at three and six months.
To assess seizure severity, researchers led by Jenifer DeWolfe, M.D., associate professor of neurology, used the Chalfont Seizure Severity Scale, a questionnaire given prior to therapy and re-administered at intervals throughout treatment.
Fifty-seven patients were followed for three months: 67 percent experienced a more than 50 percent decrease in seizure severity, while 33 percent did not. Of 47 patients followed for six months, 64 percent had a greater than 50 percent decrease in seizure severity and 36 percent did not.
"It is encouraging that both frequency and severity of seizures appear to improve in the majority of patients in our study, patients who have limited treatment options," said Jerzy P. Szaflarski, M.D., Ph.D., professor in the Department of Neurology and director of the UAB Epilepsy Center.
"Our research adds to the evidence that CBD may reduce frequency of seizures, but we also found that it appears to decrease the severity of seizures, which is a new finding."
Martina Bebin, M.D., professor of neurology and co-primary investigator of the CBD studies said, "There appears to be an optimal CBD dose range where the patient achieves maximum benefit. If outside this CBD dosing range, the seizure frequency may not improve and may even increase. More research is needed, including determining why and how CBD helps some people with epilepsy but not others."
- Jerzy P. Szaflarski et al.CBD oil may reduce frequency and severity of epileptic seizures, according to UAB findings (2016)
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