“CBD inhibits the cytochrome P450 enzymes that break down important psychiatric drugs,” says Blessing. CBD isn’t the only substance that messes with the body’s ability to metabolize these drugs — both St. John’s wort and the humble grapefruit are unfriendly — but CBD is comparatively poorly studied. The way CBD inhibits those enzymes could dramatically raise the levels of SSRIs or opioids in the system, potentially leading to an overdose.
It’s crazy that CA would legalize recreational use of marijuana but ban CBD Oil. It’s does seem to be more motivated for financial reasons. Maybe they want more people to smoke and purchase marijuana because they can tax the hell out of it. CBD Oil is pricey but maybe the State of CA can’t figure out how to tax CBD Oil. This is like the government banning hemp based products after prohibition ended.
For ingested CBD, that fat solubility is a problem. “[Ingested] CBD has a very low bioavailability, something between 6 and 15 percent, which varies between people,” says Blessing. Because ingested CBD is so inefficient at actually getting to the brain to stimulate CB1 and other receptors, the doses shown to be effective have to be very high. “There’s no evidence that doses below 300 mg of CBD have any effect in any psychiatric measure,” says Blessing. “And in fact, dose-finding studies show that the lowest clinically effective dose of CBD for reducing anxiety is 300 mg.” Blessing is talking about induced anxiety in otherwise healthy patients, which is all we have studies on; studies of CBD’s efficacy in treating clinical anxiety, which would require regular doses, haven’t been published.
I live in BC Canada and the same thing is happening here. I am aligned with an amazing US hemp based CBD oil company. We now need a prescription to get the Hemp CBD in Canada yet I can walk into any medical marijuana shop w/o a prescription and get any type of medical marijuana product no problem. We will be legal for recreational use in Oct but need an Prescription for Hemp based. It’s ridiculous. Must be about who gets to make $.
Those warning letters aside, there’s not a lot of federal oversight right now over the claims being made or the products that are being sold. Cohen warned against buying CBD products online, because “there’s a lot of scams out there.” Yet his clinic sells CBD, and he admits, “I say ‘Don’t buy online,’ but ours is worth doing, because we know what we’re doing. We ship all over.”
“If you use a tiny amount of psilocybin, it still does something,” says Blessing. “Microdosing with psilocybin still has effects biologically, but there isn’t any evidence that low doses of CBD, like 5 mg, do anything at all.” The only study I could find indicating that low doses of CBD have an effect concluded that a rare form of childhood epilepsy called Lennox-Gastaut syndrome is treatable using 10 mg of CBD. For anxiety in adults? Nothing.
The vast majority of CBD oils come in bottles measuring either 15 milliliters (mL), or 0.5 ounces; or 30 mL, or 1 ounce. However, CBD concentration is more important than bottle size. Concentration refers to the ratio of hemp oil solution (measured in mL) compared to the amount of CBD cannabinoid (measured in milligrams, or mg). A 15-mL bottle may contain 100 mg of CBD, 300 mg, 500 mg, or more. The higher the mg amount, the stronger the CBD oil will be. For this reason, the ‘mg’ measurement is also referred to as the oil’s strength; i.e., 400-mg oil might be called 400-strength oil.
That's not to say CBD-infused creams definitely won't reduce your acute pain or muscle soreness. That's because pretty much all of these creams on the market right now have other scientifically-proven analgesic compounds, like menthol, camphor, and capsaicin which are also found in other, non-CBD topical pain relievers. "Any cream with a heating or cooling sensation desensitizes the nerves to pain by distracting them with stimuli on top," Dr. Colberg explains. Plus you're often massaging the area as you apply, which improves circulation and reduces muscle spasms, he adds.
I tell several sellers of CBD food and drink what I learned from Blessing and ask what they think. “Return customers who come back, and swear by it and love it, buy two at a time to stock up for the week because they do find it to be very helpful,” says Tavares. Clancy echoes this: “We rely a lot on consumer feedback and testimonial, and generally it’s positive when taking that minimal amount. Now, that very well could be a placebo effect, but either way, people have come back and reported significant benefits when it comes to easing social anxiety.”
Scientists have made a lot of progress in understanding how CBD produces its calming, pain-reducing, anti-inflammatory effects in the body—and there’s still more to learn. We know that CBD interacts with many different receptors, proteins, and other chemicals in the brain. These interactions create changes in the activity of neurotransmitters, hormones, and other cells throughout the brain and body. Through these interactions, CBD appears to be able to affect many of the body’s functions, from sleep-wake cycles and emotional regulation to inflammation, pain perception, and seizures.