“I don’t think we have that many good drugs for pain, and we know that CBD has fewer side effects than opioids or even nonsteroidal anti-inflammatory drugs, which can cause bleeding and cardiovascular problems,” he says. “If I have an elderly patient with arthritis and a little bit of CBD can make their knees feel better, I’d prefer they take that than some other drugs.”
While CBD predominantly has acute anxiolytic effects, some species discrepancies are apparent. In addition, effects may be contingent on prior stress and vary according to brain region. A notable contrast between CBD and other agents that target the eCB system, including THC, direct CB1R agonists and FAAH inhibitors, is a lack of anxiogenic effects at a higher dose. Further receptor-specific studies may elucidate the receptor specific basis of this distinct dose response profile. Further studies are also required to establish the efficacy of CBD when administered in chronic dosing, as relatively few relevant studies exist, with mixed results, including both anxiolytic and anxiogenic outcomes.
Overall, preclinical evidence supports systemic CBD as an acute treatment of GAD, SAD, PD, OCD, and PTSD, and suggests that CBD has the advantage of not producing anxiogenic effects at higher dose, as distinct from other agents that enhance CB1R activation. In particular, results show potential for the treatment of multiple PTSD symptom domains, including reducing arousal and avoidance, preventing the long-term adverse effects of stress, as well as enhancing the extinction and blocking the reconsolidation of persistent fear memories.
Correct, I am not a doctor, and this is not to be interpreted as medical advice. I would recommend you talk to a licensed medical professional about all of this. I'm not sure what the product is so I can't recommend guidelines for taking it. If you're referring to my product, NatureCBD, as a general guideline, start with 2-3 capsules a day and not exceeding 5 tablets in 24 hours. I have personally seen no contraindications for CBD and blood pressure meds.
I found your article to be very informative. My son has refractory Epilepsy and Type 1 Diabetes. I am very interested in CBD but I am concerned about how it will interact with the 3 AED’s he is currently taking as well as how it will affect his blood glucose levels as he is on an insulin pump. Do you know of anyone with a similar combination of issues? How they have handled introducing CBD to their regime? And if they are seeing positive results?
Stephanie, generally, I have patients take 20 to 150mg a day for sleep +/- anxiety. Start low and go slow. Know the dosages of your product. Usually 2/3 to 3/4 of the daily dose is 1-2 hours before bedtime, and the other portion is upon waking (to improve wakefulness during the day). Other factors such as stress, hormone replacement, other meds & medical conditions, etc. play a role along with individual differences. I own a compounding pharmacy, so we see a lot of unique needs. I can't give more specific advice in this forum, but there is help!

Would I say that CBD oil has fundamentally changed my life? No. But per the Charlotte's Web website, this is the typical first experience. "Anyone who has ever started a new vitamin or supplement routine knows the short answer to how long it takes to kick in is—'it depends,'" reads the article on what to expect from hemp oil. "For many newcomers, they're not sure what to imagine, or some anticipate a huge change right away. For most of us, though, dietary supplements take time." 
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