There’s still a lot of unknown territory, but early evidence for CBD’s efficacy is more than enough to justify further large-scale clinical studies — some of which are already in the works. These studies also point to the variety of effective ways to take CBD. This is an important point to keep in mind if you find yourself shopping for CBD products and wondering if the best CBD for pain is a topical, a tincture, or a vape product.
That said, it’s important to note that there are a number of possible side effects to using CBD oil, some of which include; mild stomach, drowsiness, dry mouth, fatigue, dysphoria and lightheadedness. However, when it’s used in moderate amounts, many people don’t experience any cannabis oil side effects whatsoever. Numerous studies have been carried out in the last couple of years, and the results have been highly supportive of the therapeutic potential, safety and the viability of the CBD oil. Its’ lack of serious negative side effects makes it an attractive option for medical purposes healing. That said, it’s important to note that if you are taking other medications, it is always a smart idea to consider the potential drug interactions.
The passage of the 2018 Farm Bill made it legal to sell hemp and hemp products in the U.S. But that doesn't mean that all hemp-derived cannabidiol products are legal. Since cannabidiol has been studied as a new drug, it can't be legally included in foods or dietary supplements. Also, cannabidiol can't be included in products marketed with therapeutic claims. Cannabidiol can only be included in "cosmetic" products and only if it contains less than 0.3% THC. But there are still products labeled as dietary supplements on the market that contain cannabidiol. The amount of cannabidiol contained in these products is not always reported accurately on the product label. 
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