CBD can be applied to the skin both as a cream and as a concentrate or tincture. When you apply CBD Concentrate to the skin, you do not need to apply as much as the cream because of the higher concentration of CBD. Due to its gluey texture, it will adhere very well to the skin and if the CBD oil has a dark color, it will give a stain. Just leave it on as long as possible. If necessary, you can easily remove the remaining concentrate with edible oil from the skin.
When it comes to using CBD, questions keep coming up, especially from people who try CBD for the first time. Since there are different CBD products and because CBD can be used in different ways, the question of how to use CBD oil is quite legitimate.  What CBD products are available, how they can be used, and the bioavailability of each product is covered in this article.
Read the label to find out the total milligrams of CBD in the entire bottle/product and how many milligrams are in one standard dose. CBD products vary in potency, with some containing more total CBD than others. Most products will have on the label exactly how much CBD is in one dropper or drop, so you’ll be able to tell exactly how much is in there.
Today you can find an array of  products that contain cannabidiol.  Oil, balm, gummies, ointments, sleeping pills, and capsules are all common products on the market. CBD oil is made by extracting the CBD from the plant (marijuana or hemp), and then diluting it with a carrier oil – coconut or hemp seed oil. It is used for reducing pain, anxiety and depression, chemotherapy-induced nausea and vomiting, acne and other conditions.

The way NSAIDs work is by blocking the Circulating Immune Complex (CIC) activity in your body. CIC is a protein chain activated by your immune system causing pain, swelling, and redness to promote recovery. However, instead of affecting only the CIC around your pain, NSAIDs affect all CICs in your body, including ones that are necessary to maintain the lining of your stomach, intestines, liver, and kidneys. Long-term use of NSAIDs can result in more pain, stomach ulcers, kidney and liver toxicity, and leaky gut syndrome. Long-term they may lead to kidney and liver damage, intestinal bleeding, and even death (8, 9, 10, 11, 12).


Improving the appearance of the skin, especially reducing the signs and symptoms of acne and eczema, are the great benefits of regular CBD oil use. Topical application is quite popular for this, whether in a diluted or undiluted form, depending on the severity of the skin affliction. The powerful anti-inflammatory properties of the oil can also soothe redness, itchiness, and swollen areas of the skin.
Numerous studies have found results that confirm the ability of marijuana to help anxiety and stress. In 2013 an Israeli study demonstrated that treatment with cannabinoids helped to control emotional responses and prevent stress-related responses for those that had experienced a traumatic experience. In 2015 a group of researchers found that cannabis treatments were effective in reducing anxiety in those suffering from PTSD.

CBD is one of over 60 compounds found in cannabis that belong to a class of ingredients called cannabinoids. Until recently, THC (tetrahydrocannabinol) was getting most of the attention because it’s the ingredient in cannabis that produces intoxicating effects in users. But CBD is also present in high concentrations — and the world is awakening to its possible benefits.


Warning: It IS possible to take too much CBD oil. While you cannot fatally overdose on CBD and there are very few negative side effects, too much has been shown to cause drowsiness, lethargy, upset stomach, nausea and diarrhea. The exact amounts that lead to these side effects are unknown, which is why you should start with small amounts and slowly increase the dose over time until you experience your desired result. (1)
The inability to obtain quality sleep doesn’t just lead to tiresome days; it can impact regular functioning. Each year, numerous individuals make life altering mistakes on the job, in vehicles and more, leading to fatalities. In the medical field, sleep deprivation among practitioners may be responsible for up to 100,000 deaths in the United States.
CBD derived from marijuana is a different story, and the law varies from state to state. But as long as you’re using CBD oil that contains less than 0.3 percent THC, you have nothing to be concerned about anywhere in the United States. On the other hand, if you want to take your CBD on a trip outside the country, definitely look into local laws to avoid getting into awkward situations while you’re away.
Many people are tempted to believe that products that contain CBD only are the best, thinking that using just CBD alone is a more effective treatment. While products that contain single-molecule CBD, meaning that you won’t find any other compounds, are already provided as medicines, they are not exactly more efficient than whole plant extract CBD oil, when it comes to therapeutic effects.
We use this special blend because we believe it’s important to have a combination of the various natural plant compounds, for a full-spectrum product. A common term for this is the “entourage effect,” which refers to a proposed synergistic effect between the different cannabinoids and terpenoids in hemp. Similar products may be touted as cannabis oil, but the accurate name for products like Tasty Hemp Oil is hemp oil due to its origin and lack of psychoactive effects. Our oil is derived from domestic hemp, which naturally contains less than 1% of the psychoactive compound. Tasty Drops are legal in all 50 states according to the 2018 Farm Bill.
As is the case with any plant that constitutes a crop, cannabis plants have been selectively bred over the years to bolster one or another desired characteristic. This means that some plants provide a more potent psychotropic effect, others possess more prominent seeds (used in the production of cooking oil traditionally), while others may make for sturdier textile fibers.
Cannabis oil preparations have been used historically in medicine for millennia. Only recently, cannabis and chemically-related compounds have come back to being considered of beneficial value. A prominent compound found in cannabis, CBD, or cannabidiol, has been shown to have some benefits. What is CBD oil good for? Find out all about CBD, including the extensive CBD oil benefits list, CBD oil uses and the many different CBD oil forms.

In terms of price, Hempworx is actually a tad bit cheaper than the majority of the leading CBD oil brands in the U.S. As we went over in the Hempworx product reviews, their 500 mg (15 mL) oil sells for $69, which is just a hair less than our favorite brands (we won’t mention any names in particular for fear of turning this into a “brand pitch,” but you can check out this article if you want to know which brand specifically we’re talking about).

Nevertheless, as populations age all across the globe, constant pain brought on by chronic illnesses in the elderly will surely become a matter of public health and compassion. A 2008 study inquired on the efficacy of cannabinoids other than THC in pain management. Painkillers with cannabinoids proved to be well tolerated, with minimum side-effects, and a prospect for low long-term toxicity. Furthermore, a combination of cannabidiol and opioids is thought to be the breakthrough of the future in palliative care.[24]


The heat is very much on CBD oil sellers these days as the FDA continues to crack down on companies selling “questionable” (to put it nicely) hemp-based products. In fact, since 2015 – when the FDA first issued warning letters to multiple CBD sellers – the industry has been forced to clean up its act, at least in terms of manufacturing operations and brand transparency.

CBD oil is most readily available as a tincture. This can be taken by applying a few drops under your tongue, holding in your mouth for a few moments so it can be absorbed, before swallowing. It can also be added to water or smoothies. A spray form is available (simply spritz under your tongue), as are capsules, gummies, creams that can be applied topically, and e-liquid for vape pens.

Vaporizers – Many state-licensed cannabis dispensaries offer high CBD strains of cannabis flower. This allows for reduced risk of paranoia while allowing for a high medicinal dose of CBD. Vaporizers are used to heat up the flower and remove the properties or compounds of the plant that you are looking for without combustion or smoking. Vaporizers use convection much like a convection oven.


Squeeze the dropper top to fill the pipette with oil and dispense the oil under your tongue. You can swish it around a little, but most people like to just let it sit (that way you avoid some of the hemp taste — albeit Tasty Drops actually tastes great if you choose a flavored version). You can add as many droppers full as needed; don’t feel you need to restrict yourself to the recommended serving size. The phytocannabinoids in our proprietary blend is non-psychoactive. However, many people have noted a slight sedative effect at larger quantities. This may be beneficial if you have trouble sleeping, so consider using it before bed.

There is a strong sedative quality to CBD hemp oil, making it a popular remedy for people with insomnia, sleeplessness, interrupted sleep, post-traumatic stress disorder, restless leg disorder, and other night-time issues. Dr. Scott Shannon, Assistant Clinical Professor of Psychiatry at the University of Colorado School of Medicine, USA, published a report in the Permanete Journal, in which he recommended either inhaling a small amount of CBD oil, applying it to one’s chest, or even putting a few drops on one’s pillow to help get a good night’s sleep.

You can use pure CBD oil sublingually, or place it under the tongue. The capillaries in the mucous membranes absorb the CBD, and then they enter the bloodstream. What’s left of the oil is swallowed and digested. This method allows for immediate and long-lasting relief. If you choose to use CBD oil like this, make sure you’re holding it under the tongue for more than a minute so that it can be absorbed in the bloodstream. The active substances in the CBD interact with the endocannabinoid system within minutes.
Also listed among our low potency products is our bestselling CanChew® gum. With just 10 mg of CBD per piece of gum, it is easy to get started with CBD as a supplement, and adding more CBD to your diet is as simple as chewing another piece of gum. Another approachable product for those just starting out with CBD, CanChew® gum is a simple delivery method for getting your daily CBD.
According to the largest study to date, researchers reported that after treating 162 patients with an extract of 99% cannabidiol (CBD), for a 12 week period. the intervention reduced motor seizures at a rate similar to existing drugs ( a median of 36.5 percent) and 2% of patients became completely seizure free. Other studies have shown that it can act as an anticonvulsant.
Cunha et al. reported a 2-phase pilot study of CBD versus placebo in normal volunteers and patients with refractory secondarily generalized epilepsy (14). In the first phase, 8 normal volunteers received CBD or placebo in a doubled-blind fashion, at a dose of 3 mg/kg for 30 days. The second phase was also double-blinded in 15 patients with epilepsy receiving 200 to 300 mg daily of CBD or placebo for 135 days. Patients continued baseline AED. All subjects tolerated CBD well, with no serious adverse events. Four of the epilepsy patients receiving CBD were “almost free of convulsive crisis” for the duration of the study. Three other patients receiving CBD had a partial reduction in seizures, and 1 subject had no response. Of the 7 patients receiving placebo, seizure frequency was unchanged in 6, and 1 had clear improvement in seizure control.

Green Label hemp oil has the lowest CBD content of our RSHO™ because the cannabinoids in the oil have not been decarboxylated, making Green Label oil higher in CBDa than our other oils, containing a total of 50 mg of CBD per serving. Our popular Blue Label RSHO™ registers in the middle of our pure hemp oil potencies, containing 85 mg of CBD per serving. Finally, our filtered Gold Label RSHO™ tops out with 120 mg of CBD per serving, the highest of any of our products.
The heat is very much on CBD oil sellers these days as the FDA continues to crack down on companies selling “questionable” (to put it nicely) hemp-based products. In fact, since 2015 – when the FDA first issued warning letters to multiple CBD sellers – the industry has been forced to clean up its act, at least in terms of manufacturing operations and brand transparency.
Deciding to use CBD oil as a natural therapy is one thing – figuring out which brand to use, what strength/concentration to use, and how much CBD to actually take is another thing altogether. Plus, with all of the products out there to choose from and their confusing mL/mg labels, it can be a nightmare trying to determine which one is best for you, or which one you should be taking for your specific condition.

Gloss and Vickrey conducted a Cochrane systematic review of the use of CBD in the treatment of epilepsy (11). Their methodology included only those trials that were randomized and controlled and excluded case series, case reports, and expert opinion. They were able to identify only 4 randomized controlled studies reported in the literature, and they included a letter to the editor and an abstract. The total number of subjects enrolled in these studies was 48 (11–14). While only four studies and a letter to the editor were in the actual analysis, the authors included a complete reference listing of all articles reviewed for inclusion.


Most human studies of CBD have been done on people who have seizures, and the FDA recently approved the first CBD-based drug, Epidiolex, for rare forms of epilepsy. Clinical trials for other conditions are promising, but tiny. In one Brazilian study published in 2011 of people with generalized social anxiety disorder, for example, taking a 600-mg dose of CBD (higher than a typical dose from a tincture) lessened discomfort more than a placebo, but only a dozen people were given the pill.
Generally, CBD oil is made by combining an extract with a carrier fluid or oil. This question is best answered by looking at how the CBD oil was extracted. CBD oil can be extracted using CO2 systems or by using chemical solvents. Both methods produce a CBD oil byproduct that is then combined with a fluid like MCT oil, coconut oil, or olive oil so that it can be delivered to the body. Always check to make sure you know the CBD content of the products you purchase.
To summarize, we would say that HempWorx CBD oils are pretty standard in terms of effectiveness, and perhaps even a good value in terms of price compared to some of the more popular brands in the US. While they’re probably not the best we’ve ever had, they’re by no means the worst either. And of course, the company offers fast, reliable shipping to all 50 U.S. states.

As one might expect from the information presented in the previous sections of this article, the position of cannabidiol (both from a medical and from an institutional point of view) is one of uncertainty. To add insult to injury, private companies (especially those targeting immediate profit with a minimum of investment) take advantage of the loopholes in legislation to gain from the media exposure that CBD has had in the past few years.


Scientists have identified 113 cannabinoids in hemp plants.  CBD (cannabidiol) is one of them. CBD is a phytocannabinoid that makes up almost 40% of the plant’s extract, and it’s one of the most active substances derived from it. THC (tetrahydrocannabinol) for comparison is derived from the marijuana plant, and it is the most active substance derived from it.
Warning: It IS possible to take too much CBD oil. While you cannot fatally overdose on CBD and there are very few negative side effects, too much has been shown to cause drowsiness, lethargy, upset stomach, nausea and diarrhea. The exact amounts that lead to these side effects are unknown, which is why you should start with small amounts and slowly increase the dose over time until you experience your desired result. (1)
Please note that none of the presented products or services haven’t been evaluated by FDA as yet hence they are not intended to offer an alternative or substitute for a proper medical diagnose, a proper medical /surgical treatment or to prevent /cure certain illness conditions. For best results, you must contact your doctor after doing your own homework and why not, reading various feedbacks found easily all over the web. The info found on this page will not substitute a proper medical advice hence treat them as such, no matter you are considering a product that will help you lose weight, a success story or when quoting other publications or TV shows.

Naturally, the testimonies of these experts were based on a comprehensive literature review, an endeavor which we have also undertaken, albeit in a less official capacity. While many new products have been hailed as a panacea in their times, and many web sources certainly allude to this status for CBD, our objective was more modest – presenting ten possible benefits of cannabidiol where sufficient evidence exists to back up the claims.
Also, all HempWorx products are 100% organic and non-genetically modified, and the company apparently makes all of its products right here in the United States. Moreover, the hemp used to extract the oil is grown in Kentucky, and unlike a lot of firms who claim their CBD products to be lab tested, HempWorx actually ‘walks the walk’ by publishing up-to-date details of their test results on the site (you can find them under the “HempWorx Store” tab by clicking the “CBD Oil Certification” button).
We often cite research and articles intended to provide you with valuable health information. If we list a research link in our articles, blog postings, or social media accounts to a website where we sell products or have product information, the exit disclaimer indicates that when you click a link you will leave the DiscoverCBD.com website and visit an external link. Links to any informational websites are provided solely as a service to our users. External links provide additional information that may be useful or interesting and have no affiliation to the promotion, sale and distribution of DiscoverCBD.com or its affiliated companies products. The link does not constitute an endorsement of these organizations by DiscoverCBD.com or its affiliated companies and none should be inferred.
If you’re wondering what the function of the prefrontal cortex is, let us tell you. The prefrontal cortex is responsible for decision-making, attention, and other executive tasks, including motor skills. That means that when you consume THC, any of the above areas can be affected. For example, anecdotal evidence suggests that when people are “high,” they experience euphoria, time lapses, the decline in motor skills and mostly hunger.

Cannabis oil preparations have been used historically in medicine for millennia. Only recently, cannabis and chemically-related compounds have come back to being considered of beneficial value. A prominent compound found in cannabis, CBD, or cannabidiol, has been shown to have some benefits. What is CBD oil good for? Find out all about CBD, including the extensive CBD oil benefits list, CBD oil uses and the many different CBD oil forms.
Most human studies of CBD have been done on people who have seizures, and the FDA recently approved the first CBD-based drug, Epidiolex, for rare forms of epilepsy. Clinical trials for other conditions are promising, but tiny. In one Brazilian study published in 2011 of people with generalized social anxiety disorder, for example, taking a 600-mg dose of CBD (higher than a typical dose from a tincture) lessened discomfort more than a placebo, but only a dozen people were given the pill.

If you think you may have a medical emergency, call your healthcare provider or 911 immediately. Any mention of products or services is not meant as a guarantee, endorsement, or recommendation of the products, services, or companies. Reliance on any information provided is solely at your own risk. Please discuss any options with your healthcare provider.
Scientists have identified 113 cannabinoids in hemp plants.  CBD (cannabidiol) is one of them. CBD is a phytocannabinoid that makes up almost 40% of the plant’s extract, and it’s one of the most active substances derived from it. THC (tetrahydrocannabinol) for comparison is derived from the marijuana plant, and it is the most active substance derived from it.

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The information you share, including that which might otherwise be Protected Health Information, to this site is by design open to the public and is not a private, secure service. You should think carefully before disclosing any personal information in any public forum. What you have written may be seen, disclosed to, or collected by third parties and may be used by others in ways we are unable to control or predict, including to contact you or otherwise be used for unauthorized or unlawful purposes. As with any public forum on any site, this information may also appear in third-party search engines like Google, MSN, Yahoo, etc. Your use of this site is governed by Harvard University and its affiliates Terms of Use located at www.health.harvard.edu/privacy-policy and may be amended from time to time.


Cannabidiol is the major nonpsychoactive component of Cannabis sativa. Over the centuries, a number of medicinal preparations derived from C. sativa have been employed for a variety of disorders, including gout, rheumatism, malaria, pain, and fever. These preparations were widely employed as analgesics by Western medical practitioners in the 19th century (1). More recently, there is clinical evidence suggesting efficacy in HIV-associated neuropathic pain, as well as spasms associated with multiple sclerosis (1).
Several weeks after a hysterectomy last spring, Bo Roth was suffering from exhaustion and pain that kept her on the couch much of the day. The 58-year-old Seattle speech coach didn’t want to take opioid pain-killers, but Tylenol wasn’t helping enough. Roth was intrigued when women in her online chat group enthused about a cannabis-derived oil called cannabidiol (CBD) that they said relieved pain without making them high. So Roth, who hadn’t smoked weed since college but lived in a state where cannabis was legal, walked into a dispensary and bought a CBD tincture.
Prescription opioids, such as codeine, hydrocodone, oxycodone, oxymorphone, fentanyl, and morphine are medications that are naturally found in the opium poppy plant. Besides relieving pain, they can make you relaxed and high. The problem is that opioids are highly addictive, and overuse and death are incredibly common as a result of opioids. This is true for prescription opioids, and people taking prescription opioids may become addicted and suffer from consequences. Yet doctors are still commonly prescribing opiods even in less serious cases (17).
I have been sick with type 2 diebetic problems since 1997 and I just started to use cbd oil in a vape pen in 2018 I found that it really works well for controlling severe foot nerve pain and I can stop with the symbalta for nerve pain that has very bad side effects on me I also have hart problems with 2 stents put in I don’t know yet what will happen with the hart issues but waiting to see I do know I have been a calmer person not as aggressive like I used to be with less stress and pain and hyper aggressive violent attitude has went way down which was one of the symbalta side affects since I’m not depressed which what symbalta was made for but works also for nerve pain for diebetics but for me has reversed affects and makes me depressed and bad tude so all in all I’m sticking with the cbd oil I don’t know about future affects from use but like everything else theres al ways some kind of affect but I’m thinking this way is still better than hands full of pills every day that damage your liver and kidneys I’m not saying to stop your meds just the few that become not needed and replaced by the oil still have to take my shots to control sugar maybe one day big pharma will let the cure out but I will not hold my breath on that one haha so far so good have to see what the future brings take care all and do your research john
In addition to acting on the brain, CBD influences many body processes. That’s due to the endocannabinoid system (ECS), which was discovered in the 1990s, after scientists started investigating why pot produces a high. Although much less well-known than the cardiovascular, reproductive, and respiratory systems, the ECS is critical. “The ECS helps us eat, sleep, relax, forget what we don’t need to remember, and protect our bodies from harm,” Marcu says. There are more ECS receptors in the brain than there are for opioids or serotonin, plus others in the intestines, liver, pancreas, ovaries, bone cells, and elsewhere.
CO2 extraction is one of the most common ways CBD is extracted from the hemp or cannabis plants. This method uses expensive equipment that adjusts temperature and pressure to extract the cannabinoids from the plant material, without damaging them. The other common method is to use solvents like ethanol or butane to extract the plant material. These solvents have to be burned off the final product which may damage the cannabinoids or terpenes in the process. There is also a risk that these solvents may not have burned off completely and could end up in your end product.
Success stories like Oliver’s are everywhere, but there’s not a lot of data to back up those results. That’s because CBD comes from cannabis and, like nearly all other parts of the plant, is categorized by the Drug Enforcement Agency (DEA) as a Schedule 1 drug—the most restrictive classification. (Others on that list: heroin, Ecstasy, and peyote.) This classification, which cannabis advocates have tried for years to change, keeps cannabis-derived products, including CBD, from being properly studied in the U.S.
Now, as far as migraines cured I am using it also to help with my nerve pain from my spine and waiting to see if it helps my asthma. I have gone from 12 Gabapentins a day to 4-6. I’m hoping it worx for asthma. I have started taking it twice a day for the last 3 days and being in cold rainy damp weather with all the flowers and trees in bloom on top of my allergies I am hoping this CBD helps asthma to.
This turn is due to a comprehensive 2015 study aimed at two notoriously difficult manifestations of epilepsy – Dravet syndrome and Lennox-Gastaut syndrome – most often encountered in children. Seizure frequency was found to decrease between 54 percent and 67 percent for the six months cannabidiol medication was used, although a small part of individuals did not continue after three months, as their condition did not improve.

'If the Patient Information Leaflet that comes with your medication says to avoid grapefruit juice, for instance, then do not take CBD, as the same type of interaction can affect circulating blood levels of your medicine. Even if the leaflet does not mention grapefruit juice, you should still check with your doctor before taking CBD. You should also not take CBD if you are pregnant or breastfeeding.’
After months of visiting doctors and sitting through tests like a human lab rat, it was determined that there was a slight anomaly in the anatomy of my temporal lobe—the part of the brain that controls hearing, speech, and auditory comprehension—which explains why every time I have a seizure, I suddenly don’t understand the English language. Epilepsy can’t be cured, so the only course of action available for me was to take a medication every day for the rest of my life. My neurologist prescribed a few different anti-convulsant medications, but they all made me feel tired, depressed, slow, and unlike myself—until finally, I found one that was slightly better than the rest.

Where do you buy CBD oils? You may have noticed that CBD products are everywhere these days. You can easily find CBD oil and other products online and in certain health food/vitamin stores or spas. To separate the highest quality products from the rest, look for one that has a certificate of analysis, or COA. This means that the manufacturer tests the product for contaminants, and it meets lab standards.


Pioneers of the CBD industry, 4 Corners Cannabis helped pave the way for companies that want to provide quality products and utilize best practices. They grow their own strain of hemp and make small batches of true full-spectrum CBD products. Their prices place them lower down on our ranking, but their highly satisfied customers are more than willing to pay for the 4 Corners quality.  
I recently was a guest at a medical marijuana educational event that highlighted the work of researcher Michael Backes. During his presentation he made a statement about CBD that I have never heard anywhere else that CBD is “regulating” (my word) the effects of THC. I asked the Nurse Practitioner at the event, Ivy Lou Hibbitt of Certicann.com, what he meant by that and she said it was her understanding of Michael’s comment that he takes CBD to reduce the psychoactive effects of THC. Has this property of CBD, that it can lessen psychoactive effects, ever been researched elsewhere?
As a result, customers can now be confident that most companies out there are pretty legitimate in terms of the overall safety of their products. However, you should still keep your eyes peeled and do as much research as possible, as a lot of brands are still selling non-therapeutic hemp seed oils as “CBD oils,” when in fact they contain very little of the active compound at all.
I woke up seriously looking forward to my morning CBD oil fix … I mean, tonic. Truth be told, I’m an anxious person. Although I do a lot to try and calm my nerves, sometimes anxiety gets the best of me. But regardless of emotional or physical stress (I’m training for a marathon and running quite a bit!), I experienced this week, I felt a lot more in control after drinking my CBD oil tonics.  After work, I met up with a friend and felt like I could fully focus on our conversation without distractions. Could it be the CBD?
Using rigorous review methodology, Gloss and Vickery conclude that based on the low quality of the reports available, there is insufficient data available to draw any conclusions regarding the efficacy and or long-term safety of CBD in treating epilepsy (11). From the data available, it does appear that daily doses of 200 to 300 mg were safe in this small group of patients for a short period of time (14).
CBD is well tolerated in humans with doses up to 600 mg not resulting in psychotic symptoms (15). In the few small placebo-controlled studies performed, no significant CNS effects were noted. Oral CBD undergoes extensive first-pass metabolism via CYP3A4, with a bioavailability of 6%. Following single doses in humans, the half-life of CBD when taken orally is about 1 to 2 days.1 In vitro studies have shown that CBD is a potent inhibitor of multiple CYP isozymes, including CYP 2C and CYP3A (16, 17). Whether these in vitro observations are relevant at plasma concentrations likely to be seen in patients is unclear. In addition, given its metabolism via CYP3A4, clinical trials of CBD in patients receiving enzyme-inducing AEDs, such as carbamazepine or phenytoin, will require detailed pharmacokinetic studies.
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