Zynerba is no longer pursuing a version of that drug for osteoarthritis, says Dr. Clauw, and there are currently no standard recommendations for what dosage or formulation of CBD (in either oral or topical form) might work best for pain relief. But he does want pain patients to know that CBD products may be worth a try—and that they may provide relief, even without the high that products with THC produce.
The other notable difference between hemp and CBD oil is the amount of Tetrahydrocannabinol (THC), one of the 13 components found in cannabis. Hemp oil has low levels of THC (less than 25 parts in a million) while CBD can have as much as 15% CBD. In fact, one of the considerations to make when buying either of the oils is to check the amount of THC in the product as indicated on the label.