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Cbd oil for humans pain

Cannabidiol (CBD)-what we know and what we don’t

Cannabidiol (CBD) is often covered in the media, and you may see it touted as an add-in booster to your post-workout smoothie or morning coffee. You can even buy a CBD-infused sports bra. But what exactly is CBD? And why is it so popular?

How is cannabidiol different from marijuana, cannabis and hemp?

CBD, or cannabidiol, is the second most prevalent active ingredient in cannabis (marijuana). While CBD is an essential component of medical marijuana, it is derived directly from the hemp plant, a cousin of marijuana, or manufactured in a laboratory. One of hundreds of components in marijuana, CBD does not cause a “high” by itself. According to a report from the World Health Organization, “In humans, CBD exhibits no effects indicative of any abuse or dependence potential…. To date, there is no evidence of public health related problems associated with the use of pure CBD.”

Is cannabidiol legal?

CBD is readily obtainable in most parts of the United States, though its exact legal status has been in flux. All 50 states have laws legalizing CBD with varying degrees of restriction. In December 2015, the FDA eased the regulatory requirements to allow researchers to conduct CBD trials. In 2018, the Farm Bill made hemp legal in the United States, making it virtually impossible to keep CBD illegal – that would be like making oranges legal, but keeping orange juice illegal.

The Farm Bill removed all hemp-derived products, including CBD, from the Controlled Substances Act, which criminalizes the possession of drugs. In essence, this means that CBD is legal if it comes from hemp, but not if it comes from cannabis (marijuana) – even though it is the exact same molecule. Currently, many people obtain CBD online without a medical marijuana license, which is legal in most states.

The evidence for cannabidiol health benefits

CBD has been touted for a wide variety of health issues, but the strongest scientific evidence is for its effectiveness in treating some of the cruelest childhood epilepsy syndromes, such as Dravet syndrome and Lennox-Gastaut syndrome (LGS), which typically don’t respond to antiseizure medications. In numerous studies, CBD was able to reduce the number of seizures, and, in some cases, stop them altogether. Epidiolex, which contains CBD, is the first cannabis-derived medicine approved by the FDA for these conditions.

Animal studies, and self-reports or research in humans, suggest CBD may also help with:

    Studies and clinical trials are exploring the common report that CBD can reduce anxiety.
  • Insomnia. Studies suggest that CBD may help with both falling asleep and staying asleep.
  • Chronic pain. Further human studies are needed to substantiate claims that CBD helps control pain. One animal study from the European Journal of Pain suggests CBD could help lower pain and inflammation due to arthritis when applied to skin. Other research identifies how CBD may inhibit inflammatory and neuropathic pain, which are difficult treat.
  • Addiction. CBD can help lower cravings for tobacco and heroin under certain conditions, according to some research in humans. Animal models of addiction suggest it may also help lessen cravings for alcohol, cannabis, opiates, and stimulants.

Is CBD safe?

Side effects of CBD include nausea, fatigue and irritability. CBD can increase the level of blood thinning and other medicines in your blood by competing for the liver enzymes that break down these drugs. Grapefruit has a similar effect with certain medicines.

People taking high doses of CBD may show abnormalities in liver related blood tests. Many non-prescription drugs, such as acetaminophen (Tylenol), have this same effect. So, you should let your doctor know if you are regularly using CBD.

A significant safety concern with CBD is that it is primarily marketed and sold as a supplement, not a medication. Currently, the FDA does not regulate the safety and purity of dietary supplements. So, you cannot be sure that the product you buy has active ingredients at the dose listed on the label. In addition, the product may contain other unknown elements. We also don’t know the most effective therapeutic dose of CBD for any particular medical condition.

How can CBD be taken?

CBD comes in many forms, including oils, extracts, capsules, patches, vapes, and topical preparations for use on skin. If you’re hoping to reduce inflammation and relieve muscle and joint pain, a topical CBD-infused oil, lotion or cream – or even a bath bomb — may be the best option. Alternatively, a CBC patch or a tincture or spray designed to be placed under the tongue allows CBD to directly enter the bloodstream.

Outside of the US, the prescription drug Sativex, which uses CBD as an active ingredient, is approved for muscle spasticity associated with multiple sclerosis and for cancer pain. Within the US, Epidiolex is approved for certain types of epilepsy and tuberous sclerosis.

The bottom line on cannabidiol

Some CBD manufacturers have come under government scrutiny for wild, indefensible claims, such that CBD is a cure-all for cancer or COVID-19, which it is not. We need more research but CBD may prove to be a helpful, relatively non-toxic option for managing anxiety, insomnia, and chronic pain. Without sufficient high-quality evidence in human studies, we can’t pinpoint effective doses, and because CBD currently is typically available as an unregulated supplement, it’s hard to know exactly what you are getting.

If you decide to try CBD, make sure you are getting it from a reputable source. And talk with your doctor to make sure that it won’t affect any other medicines you take.

CBD Oil: 9 Science-Backed Benefits

Dr. Bindiya Gandhi is an integrative medicine physician with expertise in functional and holistic medicine based in Atlanta, Georgia.

Commissions we earn from partner links on this page do not affect our opinions or evaluations. Our editorial content is based on thorough research and guidance from the Forbes Health Advisory Board.

Cannabidiol, or CBD, is a chemical compound found in the cannabis sativa plant. When applied topically or consumed through smoke inhalation or edible consumption, CBD interacts with neuroreceptors in your endocannabinoid system, which sends signals between your cells to help regulate your movement, mood, homeostasis and immune system.

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CBD is often extracted from the cannabis sativa plant in oil form and mixed with an inert carrier oil like hemp seed oil for consumption. In fact, of the 60% of U.S. adults who report having used CBD before, 55% of them use CBD oils and tinctures specifically, according to a recent Forbes Health survey of 2,000 U.S. adults conducted by OnePoll.

CBD research is growing, too. Here are nine ways studies suggest CBD oil could benefit your health.

1. Offset Anxiety and Depression

CBD’s ability to calm is perhaps its most popular effect and the reason its use is so widespread. A 2017 study in the Brazilian Journal of Psychiatry tested the anxiety levels of 57 men in a simulated public speaking test. Some received a placebo while others received either 150 milligrams, 300 milligrams or 600 milligrams of CBD before their speeches. Those who received 300 milligrams of CBD experienced significantly reduced anxiety during the test compared to those who received the placebo. Interestingly, participants who received either 150 or 600 milligrams of CBD experienced more anxiety during the test than the 300 milligrams group.

Meanwhile, at least one study in mice revealed CBD had effects similar to the antidepressant imipramine. Human trials are needed, though, to confirm whether CBD can induce this same antidepressant reaction in our bodies.

2. Treat Select Epilepsy Syndromes

In some instances, CBD can be used to treat epileptic seizures.

In 2018, the Food and Drug Administration (FDA) approved the use of CBD under the brand name Epidiolex to treat seizures resulting from Lennox-Gastaut syndrome and Dravet syndrome—two rare forms of epilepsy—in patients at least 2 years old.

Three well-vetted studies provide the basis of support for the FDA’s decision. In these trials, 516 patients with Lennox-Gastaut syndrome or Dravet syndrome received either Epidiolex or a placebo. Epidiolex, when taken along with other prescribed medications, decreased the frequency of participants’ seizures compared to the placebo.

3. Reduce PTSD Symptoms

In a small 2018 study in the Journal of Alternative and Complementary Medicine, 11 people with post-traumatic stress disorder (PTSD) received CBD along with routine psychiatric care for eight weeks in an outpatient psychiatric clinic. Ten of the 11 experienced a decrease in their PTSD symptoms. CBD was generally well tolerated, the researchers write.

Margaret Rajnic, a doctor of nursing practice experienced in medical cannabis and CBD, emphasizes the importance of using therapy in tandem with any type of cannabis or CBD for PTSD. “There is an amount of therapy that is needed for PTSD,” she says. “But CBD will give you that little bit of decreased anxiety.”

Four other human trials from 2012 to 2016 suggest CBD reduces PTSD symptoms, although some include THC, or tetrahydrocannabinol, the main mind-altering element in cannabis. When THC and CBD work together, they create what’s called an “entourage effect,” complementing each other’s benefits and potency. For example, taking the same dose of THC and CBD together tempers the “high” from THC, while just a little THC paired with more CBD enhances the effects of the CBD.

4. Treat Opioid Addiction

Some studies—both preclinical animal and human clinical trials—suggest CBD could be used to help treat people who are dependent on opioids.

In one such study, researchers administered CBD to people with heroin use disorder. Over the course of a week, CBD significantly reduced heroin users’ cue-induced cravings, withdrawal anxiety, resting heart rate and salivary cortisol levels. No serious adverse effects were found.

Other studies find CBD helpful in reducing various psychiatric and medical symptoms like anxiety, insomnia and pain in patients with substance use disorders, indicating that CBD may be an effective treatment for opioid addiction. However, further studies are necessary.

5. Alleviate ALS Symptoms

Amyotrophic lateral sclerosis (ALS) is a disease that causes nerve cells in the brain and spinal cord to deteriorate, resulting in loss of muscle control that worsens over time. It’s not yet understood exactly why ALS occurs, although it can be hereditary in some cases. There’s no known cure, and there are only two FDA-approved medications to help treat ALS symptoms.

Research suggests people with ALS can benefit from the entourage effect created by the combination of THC and CBD, similar to people with PTSD. In a 2019 study, patients received a combination of THC and CBD in varying doses depending on their needs and preferences. Those with mild, moderate or severe spasticity (muscle tightness and stiffness) due to ALS reported high levels of satisfaction with the treatment, and those with moderate to severe spasticity reported higher satisfaction rates than those with mild spasticity.

6. Relieve Unmanageable Pain

In 2005, Canada approved the use of Sativex, an oromucosal (absorbed in the lining of the mouth) spray with equal proportions of THC and CBD, for the treatment of multiple sclerosis-related central neuropathic pain. In 2007, Canada approved the medicine’s use again for cancer pain that proved unresponsive to other medications.

Meanwhile, continued studies in the U.S. indicate CBD is effective in treating chronic, non-cancer pain. In one 2020 study, researchers administered CBD topically to a group of patients with symptomatic peripheral neuropathy (a result of brain nerve and spinal cord nerve damage) while another group with the same condition received a placebo. Results showed a significant reduction in intense, sharp pains and cold, itchy sensations in those who used the topical CBD compared to those who used the placebo. No participants reported adverse side effects.

When introduced topically, CBD oil doesn’t affect the systemic issue as it might if it were introduced directly into the bloodstream. Instead, topical CBD is more localized and treats pain in a certain area. Since it’s more direct, it may have a more pronounced effect.

7. Ease Diabetic Complications

For starters, tests on human cells found that CBD helps reduce the effects of high glucose levels on other cells in the body, which typically precedes the development of diabetes and various complications. Researchers concluded that with further studies, CBD could have significant benefits when used in patients with diabetes, diabetic complications and plaque buildup in artery walls.

In another small study, 13 patients with type 2 diabetes who weren’t on insulin treatment were given both CBD and a placebo (in lieu of insulin). Researchers found CBD decreased their levels of resistin (which causes resistance to insulin, the protein that regulates sugar levels) and increased their levels of glucose-dependent insulinotropic peptide (a hormone that ensures a sufficient release of insulin from digested food) compared to their baselines before they started the test. These results suggest CBD could be a natural treatment for diabetes by helping the body regulate insulin-related hormone levels.

8. Protect Against Neurological Disease

Preclinical and clinical studies show that CBD has antioxidant and anti-inflammatory properties. Researchers deduce these characteristics can provide significant neuroprotection, or protection against numerous pathological disorders.

Several preclinical studies suggest CBD can produce beneficial effects against Parkinson’s disease, Alzheimer’s disease and multiple sclerosis. Huntington’s disease and cerebral ischemia were also tested, although significant positive results were not recorded. Further clinical studies are needed to confirm CBD’s benefits when used as a treatment for these disorders.

9. Inhibit Arthritis Symptoms

Arthritis involves the deterioration of the tissues in and around your joints. There are several types of arthritis, and symptoms include pain, stiffness and loss of motion. Arthritis treatment usually targets pain relief and improved joint function.

A 2006 study found that Sativex—a CBD-based botanical drug approved in the United Kingdom in 2010—promoted statistically significant improvements in quality of sleep, pain during movement and pain at rest in patients with rheumatoid arthritis when compared to a placebo. It was the first controlled trial of Sativex as a treatment for rheumatoid arthritis, involving 58 patients. CBD was found to have a pain-relieving effect, as well as an ability to suppress disease activity.

In 2018, in a study of more localized treatment, researchers administered a synthetic CBD gel in either 250-milligram or 500-milligram doses daily or a placebo to patients with knee pain due to osteoarthritis. Patients also stopped taking any other anti-inflammatory medications or painkillers, with the exception of acetaminophen, before and during the study period.

The results were interesting, although not entirely conclusive. On one hand, those treated with CBD did not experience much change in pain when compared with placebo patients. On the other hand, there were statistically significant differences between the group receiving the 250-milligram dose and the placebo group when measuring the average weekly improvement of their worst pain levels and their WOMAC (Western Ontario and McMaster Universities Arthritis Index) physical function rating. Additionally, men seemed to benefit from CBD more significantly than women in this test.

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How To Use CBD To Help Manage Pain

Dr. Bindiya Gandhi is an integrative medicine physician with expertise in functional and holistic medicine based in Atlanta, Georgia.

Commissions we earn from partner links on this page do not affect our opinions or evaluations. Our editorial content is based on thorough research and guidance from the Forbes Health Advisory Board.

Table of Contents

  • CBD for Pain Relief
  • CBD for Chronic Pain
  • CBD for Arthritis and Joint Pain
  • CBD for Neuropathic Pain

Without the intoxicating properties of its cousin delta-9-tetrahydrocannabinol (THC), cannabidiol (CBD) can provide the human body with a handful of health benefits. Cannabinoids like CBD interact with receptors in the endocannabinoid system, which plays a role in signaling bodily functions, from emotional responses to motor control to energy balance [1] Mouslech Z, Valla V. Endocannabinoid system: An overview of its potential in current medical practice. Neuro Endocrinol Lett. 2009;30(2):153-179. .

Over the last two decades, scientists have tested CBD’s efficacy as an analgesic, or painkiller, specifically—and with promising results. While research is ongoing, here’s what we know so far about how we can use CBD oil for pain relief.

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CBD for Pain Relief

For now, no CBD-based medications are approved as painkillers in the U.S. Epidiolex, which is used for rare forms of epilepsy, is the only CBD treatment approved by the Food and Drug Administration (FDA).

Meanwhile, several countries have approved CBD to treat certain conditions. For instance, the U.K. approved it for multiple sclerosis, and Canada approved it for cancer pain. Ongoing research suggests CBD oil for pain can aid medical conditions, including arthritis and fibromyalgia, at varying doses. Some pain may not be treatable by CBD alone, but it can help when paired with THC or Western medication applications.

Interestingly, 60% of U.S. adults who use CBD products do so for its potential pain-relieving effects, according to a recent Forbes Health survey of 2,000 U.S. adults conducted by OnePoll.

What’s more, 60% of U.S. adults have tried CBD and believe it has medicinal benefits.

CBD for Chronic Pain

Chronic pain is defined as any pain lasting longer than several months. Studies have found CBD, often alongside THC, to be an effective pain reliever for various chronic conditions.

In clinical trials, Sativex, a spray with equal parts CBD and THC, proved significantly successful as an analgesic for cancer-related pain [2] Russo EB. Cannabinoids in the management of difficult to treat pain. Ther Clin Risk Manag. 2008;4(1):245-259. . The spray, also used for multiple sclerosis-related pain, is approved in Canada to treat cancer pain and is currently undergoing trials for approval and use in the U.S.

A 2019 study found Sativex to be an “effective and well-tolerated add-on treatment” for patients with severe chronic pain stemming from various ailments. The study identified three types of pain: nociceptive (affecting body tissue), neuropathic (affecting nerves) and mixed pain. Sativex helped treat all three kinds but proved especially effective against neuropathic pain.

An earlier study also found CBD to be effective in chronic pain relief for conditions like multiple sclerosis and spinal cord injury, although across a much smaller sample size [4] Wade DT, Robson P, House H, Makela P, Aram J. A preliminary controlled study to determine whether whole-plant cannabis extracts can improve intractable neurogenic symptoms. Clin Rehabil. 2003;17(1):21-29. .

CBD for Arthritis and Joint Pain

Arthritis is a broad term that encompasses hundreds of joint-related conditions and pains. Common symptoms include swelling, pain and stiffness in the joints and may progress over time.

Already a proven analgesic for other conditions, CBD shows promise as an anti-inflammatory substance in both animal and preclinical trials, which bodes well for arthritis treatment [5] Nichols JM, Kaplan BLF. Immune Responses Regulated by Cannabidiol. Cannabis Cannabinoid Res. 2020;5(1):12-31. [6] Mlost J, Bryk M, Starowicz K. Cannabidiol for Pain Treatment: Focus on Pharmacology and Mechanism of Action. Int J Mol Sci. 2020;21(22):8870. [7] Kosgodage US, Mould R, Henley AB, et al. Cannabidiol (CBD) Is a Novel Inhibitor for Exosome and Microvesicle (EMV) Release in Cancer. Front Pharmacol. 2018;9:889. [8] Lowin T, Tingting R, Zurmahr J, Classen T, Schneider M, Pongratz G. Cannabidiol (CBD): a killer for inflammatory rheumatoid arthritis synovial fibroblasts. Cell Death Dis. 2020;11(8):714. . However, clinical research dedicated to CBD administration for arthritis is less robust and ongoing.

The first controlled trial conducted in 2006 focused on patients with rheumatoid arthritis, an autoimmune disease that causes inflammation in the joints and other affected areas [9] Blake DR, Robson P, Ho M, Jubb RW, McCabe CS. Preliminary assessment of the efficacy, tolerability and safety of a cannabis-based medicine (Sativex) in the treatment of pain caused by rheumatoid arthritis. Rheumatology (Oxford). 2006;45(1):50-52. . Researchers found that, compared to a placebo, Sativex significantly improved participants’ pain during movement, pain at rest and quality of sleep. Any adverse reactions to the treatment were mild or moderate, and there were no complications with withdrawal.

In 2018 researchers tested the efficacy of topical CBD gel on participants with osteoarthritis-related knee pain over the course of 12 weeks [10] Hunter D, Oldfield G, Tich N, Messenheimer J, Sebree T. Synthetic transdermal cannabidiol for the treatment of knee pain due to osteoarthritis. Osteoarthritis and Cartilage. 2018;26:S26. . Participants used either 250 milligrams or 500 milligrams, split into two applications, daily. Overall, participants’ weekly pain levels didn’t improve much with CBD compared to placebo. However, when researchers evaluated the average weekly worst pain scores and Western Ontario and McMaster Universities Arthritis Index (WOMAC) physical function scores, participants who applied 250 milligrams of CBD daily experienced significant improvement over placebo participants.

Meanwhile, a small 2019 trial suggests a mix of CBD and THC may prove beneficial for people with fibromyalgia, a type of arthritis that results in whole-body pain and fatigue [11] van de Donk T, Niesters M, Kowal MA, Olofsen E, Dahan A, van Velzen M. An experimental randomized study on the analgesic effects of pharmaceutical-grade cannabis in chronic pain patients with fibromyalgia. Pain. 2019;160(4):860-869. . The study found that, via a single inhalation, a CBD-THC solution performed better than a placebo and either substance on its own.

CBD for Neuropathic Pain

Various conditions and injuries that damage nerves or the nervous system can result in neuropathic pain. This kind of pain manifests as tingling, numbness, muscle weakness and a sharp, shooting, burning or stabbing pain.

Multiple sclerosis (MS) is a common cause of neuropathic pain. The disease wears down myelin, a mixture of proteins and phospholipids that coats nerve cells. Sativex is already approved as an MS treatment around the world due to its success in clinical trials. As a spray, Sativex is absorbed in the mouth. Studies support a median dose of eight sprays a day for patients with MS, which provides about 20 milligrams of CBD and 21.6 milligrams of THC [12] Sativex Oromucosal Spray – Summary of Product Characteristics (SmPC). Datapharm. Accessed 7/9/2021. . However, doses vary between patients, and each person needs to find their optimal dose.

A 2020 study also tested topically administered CBD oil as a treatment for patients with peripheral neuropathy, or damage to the peripheral nervous system, which sends information throughout your body from the central nervous system [13] Xu DH, Cullen BD, Tang M, Fang Y. The Effectiveness of Topical Cannabidiol Oil in Symptomatic Relief of Peripheral Neuropathy of the Lower Extremities. Curr Pharm Biotechnol. 2020;21(5):390-402. . When compared to placebo, the topical CBD significantly reduced patients’ intense pain and sharp pain, as well as cold and itchy sensations.