There is no standardized dosage of CBD. Some retailers may have enough knowledge to make a recommendation for first-timers. There are also online resources – like this dosage calculator.
As interest in other cannabinoids, like cannabigerol, or CBG – which some are touting as the new CBD – continues to grow, so too grows the need for further medical research into cannabis.
Our recent study found that Americans perceive hemp and CBD to be more like over-the-counter medication and THC to be more like a prescription drug. Still, the average person in the U.S. does not view hemp, CBD, THC or even marijuana in the same light as illicit substances like meth and cocaine – even though both are classified by the DEA as having a lower potential for abuse than marijuana.
Brandon McFadden receives funding from U.S. Department of Agriculture.
Both hemp and marijuana belong to the same species, Cannabis sativa, and the two plants look somewhat similar. However, substantial variation can exist within a species. After all, great Danes and chihuahuas are both dogs, but they have obvious differences.
“Broad spectrum” CBD typically contains at least three other cannabinoids, as well as some terpenes and flavonoids – but still no THC. “Full spectrum” CBD, also called “whole flower” CBD, is similar to broad spectrum but can contain up to 0.3% THC.
Michigan State University provides funding as a founding partner of The Conversation US.
Malfait AM, Gallily R, Sumariwalla PF, et al. The non-psychoactive cannabis-constituent cannabidiol is an oral anti-arthritic therapeutic in murine collagen-induced arthritis. Proc Natl Acad Sci USA 2000;97:9561-6. View abstract.
Over 80 chemicals, known as cannabinoids, have been found in the Cannabis sativa plant. Delta-9-tetrahydrocannabinol (THC) is the most famous ingredient in cannabis. But CBD is obtained from hemp, a form of the Cannabis sativa plant that only contains small amounts of THC. CBD seems to have effects on some chemicals in the brain, but these are different than the effects of THC.
McAllister SD, Murase R, Christian RT, et al. Pathways mediating the effects of cannabidiol on the reduction of breast cancer cell proliferation, invasion, and metastasis. Breast Cancer Res Treat 2011;129(1):37-47. View abstract.
Special Precautions and Warnings
Masataka N. Anxiolytic Effects of Repeated Cannabidiol Treatment in Teenagers With Social Anxiety Disorders. Front Psychol. 2019 Nov 8;10:2466. View abstract.
A prescription form of CBD is used for seizure disorder (epilepsy). CBD is also used for anxiety, pain, a muscle disorder called dystonia, Parkinson disease, Crohn disease, and many other conditions, but there is no good scientific evidence to support these uses.
Anderson LL, Doohan PT, Oldfield L, et al. Citalopram and Cannabidiol: In Vitro and In Vivo Evidence of Pharmacokinetic Interactions Relevant to the Treatment of Anxiety Disorders in Young People. J Clin Psychopharmacol. 2021. View abstract.
Moreira FA, Guimaraes FS. Cannabidiol inhibits the hyperlocomotion induced by psychomimetic drugs in mice. Eur J Pharmacol 2005;512(2-3):199-205. View abstract.
“It’s promising in a lot of different therapeutic avenues because it’s relatively safe,” said James MacKillop, co-director of McMaster University’s Michael G. DeGroote Center for Medicinal Cannabis Research in Hamilton, Ontario.
Will these trends change your life — or
“Our top therapies attempt to break the association between reminders of the trauma and the fear response,” said Mallory Loflin, an assistant adjunct professor at the University of California, San Diego and the study’s principal investigator. “We think that CBD, at least in animal models, can help that process happen a lot faster.” While large clinical trials are underway, psychologists say there isn’t compelling evidence yet as to whether this is a viable treatment.
take your money?
Recently, the F.D.A. sent a warning letter to Curaleaf Inc. about its “unsubstantiated claims” that the plant extract treats a variety of conditions from pet anxiety and depression to cancer and opioid withdrawal. (In a statement, the company said that some of the products in question had been discontinued and that it was working with the F.D.A.)