As more and more states legalize the use of marijuana, a product known as CBD oil has surged in popularity. A chemical compound found in the cannabis plant. Cannabidiol, or CBD, is a chemical compound in marijuana with a variety of uses . Here are 7 benefits of CBD oil. Learn more about Cannabidiol uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Cannabidiol.
oil Benefits effects and side of CBD
Whereas CBD did not have an effect on locomotion, it did increase brain-derived neurotrophic factor BDNF levels and could protect against amphetamine-induced oxidative damage in proteins of the hippocampus and striatum.
No adverse effects were recorded in this study. Another model for BD and schizophrenia is PPI of the startle reflex both in humans and animals, which is disrupted in these diseases. CBD, which is nonhedonic, can reduce heroin-seeking behavior after, for example, cue-induced reinstatement. In addition, the described study was able to replicate previous findings showing no CBD side effects on locomotor behavior. There are various mechanisms underlying neuroprotection, for example, energy metabolism whose alteration has been implied in several psychiatric disorders and proper mitochondrial functioning.
A study comparing acute and chronic CBD administration in rats suggests an additional mechanism of CBD neuroprotection: Mitochondrial activity was measured in the striatum, hippocampus, and the prefrontal cortex. Since the mitochondrial complexes I and II have been implied in various neurodegenerative diseases and also altered ROS reactive oxygen species levels, which have also been shown to be altered by CBD, this might be an additional mechanism of CBD-mediated neuroprotection.
In healthy cells, this can be interpreted as a way to protect against the higher ROS levels resulting from more mitochondrial activity. Another publication studied the difference of acute and chronic administration of two doses of CBD in nonstressed mice on anxiety. Already an acute i. Fifteen days of repeated i. However, the higher dose caused a decrease in neurogenesis and cell proliferation, indicating dissociation of behavioral and proliferative effects of chronic CBD treatment.
The study does not mention adverse effects. Numerous studies show the CBD immunomodulatory role in various diseases such as multiple sclerosis, arthritis, and diabetes. These animal and human ex vivo studies have been reviewed extensively elsewhere, but studies with pure CBD are still lacking.
It would be especially interesting to study when CBD is proinflammatory and under which circumstances it is anti-inflammatory and whether this leads to side effects Burstein, Table 1 shows a summary of its anti-inflammatory actions; McAllister et al. In case of Alzheimer's disease AD , studies in mice and rats showed reduced amyloid beta neuroinflammation linked to reduced interleukin [IL]-6 and microglial activation after CBD treatment.
This led to amelioration of learning effects in a pharmacological model of AD. The chronic study we want to describe in more detail here used a transgenic mouse model of AD, where 2. CBD was able to prevent the development of a social recognition deficit in the AD transgenic mice.
Using statistical analysis by analysis of variance, this was shown to be only a trend. This might have been caused by the high variation in the transgenic mouse group, though. This was probably due to already elevated cholesterol in the transgenic mice. The study observed no side effects. After CBD treatment was stopped, observation continued until the mice were 24 weeks old.
CBD increased IL levels, which is thought to act as an anti-inflammatory cytokine in this context. After inducing arthritis in rats using Freund's adjuvant, various CBD doses 0. CBD reduced joint swelling, immune cell infiltration. CBD was shown to be able to influence migratory behavior in cancer, which is also an important aspect of embryogenesis.
Helix-loop-helix Id proteins play a role in embryogenesis and normal development via regulation of cell differentiation. High Id1-levels were also found in breast, prostate, brain, and head and neck tumor cells, which were highly aggressive.
In contrast, Id1 expression was low in noninvasive tumor cells. Id1 seems to influence the tumor cell phenotype by regulation of invasion, epithelial to mesenchymal transition, angiogenesis, and cell proliferation. There only seems to exist one study that could not show an adverse CBD effect on embryogenesis. An in vitro study could show that the development of two-cell embryos was not arrested at CBD concentrations of 6.
Various studies have been performed to study CBD anticancer effects. CBD every 3 days for a total of 28 weeks, almost completely reduced the development of metastatic nodules caused by injection of human lung carcinoma cells A in nude mice. The typical side effects of traditional anticancer medication, emesis, and collateral toxicity were not described in these studies.
Consequently, CBD could be an alternative to other MMP1 inhibitors such as marimastat and prinomastat, which have shown disappointing clinical results due to these drugs' adverse muscoskeletal effects. Two studies showed in various cell lines and in tumor-bearing mice that CBD was able to reduce tumor metastasis.
CBD downregulated Id1 at promoter level and reduced tumor aggressiveness. Moreover, to carry out these experiments, animals are often immunologically compromised, to avoid immunogenic reactions as a result to implantation of human cells into the animals, which in turn can also affect the results.
Another approach was chosen by Aviello et al. After 3 months, the number of aberrant crypt foci, polyps, and tumors was analyzed. The high CBD concentration led to a significant decrease in polyps and a return to near-normal levels of phosphorylated Akt elevation caused by the carcinogen. Animal studies summarized by Bergamaschi et al. Chronic administration 14 days, 2. This effect could be inhibited by coadministration of a CB2R antagonist.
The positive effects of CBD on hyperglycemia seem to be mainly mediated via CBD anti-inflammatory and antioxidant effects. In addition, treatment increased adiponectin and liver glycogen concentrations.
CBD showed inhibition of testosterone oxidation in the liver. Motor function was also tested on a rotarod, which was also not affected by CBD administration. Static beam performance, as an indicator of sensorimotor coordination, showed more footslips in the CBD group, but CBD treatment did not interfere with the animals' speed and ability to complete the test.
Compared to other anticonvulsant drugs, this effect was minimal. CBD did not lead to adverse effects. In addition, psychomotor function and psychological functions were not disturbed. Interestingly, the CYP2C19 inhibitor omeprazole, used to treat gastroesophageal reflux, could not significantly affect the pharmacokinetics of CBD. Unfortunately, it was not mentioned whether this effect was mediated via the cytochrome P complex. Another aspect, which has not been thoroughly looked at, to our knowledge, is that several cytochrome isozymes are not only expressed in the liver but also in the brain.
It might be interesting to research organ-specific differences in the level of CBD inhibition of various isozymes. Apart from altering the bioavailability in the overall plasma of the patient, this interaction might alter therapeutic outcomes on another level. Generally, more human studies, which monitor CBD-drug interactions, are needed. In a double-blind, placebo-controlled crossover study, CBD was coadministered with intravenous fentanyl to a total of 17 subjects.
This was followed by a single 0. This extensive tool tests, for example, 78 adverse effects divided into 23 categories corresponding to organ systems or body parts. No respiratory depression or cardiovascular complications were recorded during any test session. The results of the evaluation of pharmacokinetics, to see if interaction between the drugs occurred, were as follows.
No effect was evident for urinary CBD and metabolite excretion except at the higher fentanyl dose, in which CBD clearance was reduced. Importantly, fentanyl coadministration did not produce respiratory depression or cardiovascular complications during the test sessions and CBD did not potentiate fentanyl's effects.
No correlation was found between CBD dose and plasma cortisol levels. CBD did not worsen the adverse effects e. Coadministration was safe and well tolerated, paving the way to use CBD as a potential treatment for opioid addiction. A Dutch study compared subjective adverse effects of three different strains of medicinal cannabis, distributed via pharmacies, using VAS.
The 12 adjectives used for this study were as follows: This strain showed significantly lower levels of anxiety and dejection. Moreover, appetite increased less in the high CBD strain. The review by Bergamaschi et al. This holds especially true for the extrapyramidal motor side effects elicited by classical antipsychotic medication. Order of drug administration was pseudorandomized across subjects, so that an equal number of subjects received any of the drugs during the first, second, or third session in a double-blind, repeated-measures, within-subject design.
This effect was caused by opposite neural activation of relevant brain areas. In addition, no effects on peripheral cardiovascular measures such as heart rate and blood pressure were measured.
A randomized, double-blind, crossover, placebo-controlled trial was conducted in 16 healthy nonanxious subjects using a within-subject design. The doses were selected to only evoke neurocognitive effects without causing severe toxic, physical, or psychiatric reactions. The physiological parameters, heart rate and blood pressure, were also monitored and no significant difference between the placebo and the CBD group was observed.
A case study describes a patient treated for cannabis withdrawal according to the following CBD regimen: Hepatic enzymes were also measured daily, but no effect was reported. Naturalistic studies with smokers inhaling cannabis with varying amounts of CBD showed that the CBD levels were not altering psychomimetic symptoms.
CBD might work to alleviate disorders of addiction, by altering the attentive salience of drug cues. The study did not further measure side effects. CBD can also reduce heroin-seeking behaviors e.
This was shown in the preclinical data mentioned earlier and was also replicated in a small double-blind pilot study with individuals addicted to opioids, who have been abstinent for 7 days. One hour after the video session, subjective craving was already reduced after a single CBD administration.
The effect persisted for 7 days after the last CBD treatment. Interestingly, anxiety measures were also reduced after treatment, whereas no adverse effects were described. A pilot study with 24 subjects was conducted in a randomized, double-blind, placebo-controlled design to evaluate the impact of the ad hoc use of CBD in smokers, who wished to stop smoking.
Pre- and post-testing for mood and craving of the participants was executed. Craving was assessed using the Tiffany Craving Questionnaire On day 1 and 7, exhaled CO was measured to test smoking status.
Sedation, depression, and anxiety were evaluated with the MRS. At day 7, the anxiety levels for placebo and CBD group did not differ.
CBD did not increase depression in contrast to the selective CB1 antagonist rimonabant. CBD might weaken the attentional bias to smoking cues or could have disrupted reconsolidation, thereby destabilizing drug-related memories. To the best of our knowledge, no acute studies were performed that solely concentrated on CBD glycemic effects.
Moreover, the only acute study that also measured CBD effect on appetite was the study we described above, comparing different cannabis strains. Growth hormone and prolactin levels were unchanged. Compared to the healthy individuals, the cortisol levels increased less after TSST in the 32 at-risk individuals. The CBD group showed less reduced cortisol levels but differences were not significant.
Truly chronic studies with CBD are still scarce. Nonetheless, we also included these studies with repeated CBD treatment, because we think that compared to a one-time dose of CBD, repeated CBD regimens add value and knowledge to the field and therefore should be mentioned here. These results are supported by another study described in the review by Grotenhermen et al.
CBD was administered on average with three other drugs, including clobazam The coadministration led to an alteration of blood levels of several antiepileptic drugs.
In the case of clobazam this led to sedation, and its levels were subsequently lowered in the course of the study. A first pilot study in healthy volunteers in by Mincis et al. Clinical chronic lasting longer than a couple of weeks studies in humans are crucial here but were mostly still lacking at the time of writing this review.
They hopefully will shed light on the inconsistencies observerd in animal studies. Chronic studies in humans may, for instance, help to test whether, for example, an anxiolytic effect always prevails after chronic CBD treatment or whether this was an artifact of using different animal models of anxiety or depression.
In a 4-week open trial, CBD was tested on Parkinson's patients with psychotic symptoms. This led to a reduction of their psychotic symptoms. Moreover, no serious side effects or cognitive and motor symptoms were reported. No adverse effects were observed and her symptoms improved. The same positive outcome was registered in another study described by Bergamaschi et al. The respective treatment was maintained for three additional weeks.
This was the case for three patients in the CBD group and five patients in the amisulpride group. CBD treatment was accompanied by a substantial increase in serum anandamide levels, which was significantly associated with clinical improvement, suggesting inhibition of anandamide deactivation via reduced FAAH activity.
In addition, the FAAH substrates palmitoylethanolamide and linoleoyl-ethanolamide both lipid mediators were also elevated in the CBD group. CBD showed less serum prolactin increase predictor of galactorrhoea and sexual dysfunction , fewer extrapyramidal symptoms measured with the Extrapyramidal Symptom Scale, and less weight gain.
Moreover, electrocardiograms as well as routine blood parameters were other parameters whose effects were measured but not reported in the study. CBD better safety profile might improve acute compliance and long-term treatment adherence. A press release by GW Pharmaceuticals of September 15th, , described 88 patients with treatment-resistant schizophrenic psychosis, treated either with CBD in addition to their regular medication or placebo.
Important clinical parameters improved in the CBD group and the number of mild side effects was comparable to the placebo group. Moreover, neurological and physiological examinations were performed, which neither showed signs of CBD toxicity nor severe side effects.
The study also illustrated that CBD was well tolerated. CBD in addition to their regular epilepsy medication. Another clinical study lasting at least 3 months with children and young adults with various forms of epilepsy, who were treated with the CBD drug Epidiolex, was presented at the American Academy for Neurology in In a few cases, severe side effects occurred, but it is not clear, if these were caused by Epidiolex. The largest CBD study conducted thus far was an open-label study with Epidiolex in patients mainly children, the average age of the participants was 11 suffering from severe epilepsy, who could not be treated sufficiently with standard medication.
Ten percent of the patients reported side effects tiredness, diarrhea, and exhaustion. After extensive literature study of the available trials performed until September , CBD side effects were generally mild and infrequent. The only exception seems to be a multicenter open-label study with a total of patients aged 1—30 years, with treatment-resistant epilepsy.
This led to a reduction in seizure frequency. It is therefore difficult to put the side effect frequency into perspective. Attributing the side effects to CBD is also not straightforward in severely sick patients.
Thus, it is not possible to draw reliable conclusions on the causation of the observed side effects in this study. This rating instrument comprised the following factors: This assessment instrument analyzes adverse medication effects, including psychic, neurologic, autonomic, and other manifestations.
Using various safety outcome variables, clinical tests, and the cannabis side effect inventory, it was shown that there were no differences between the placebo group and the CBD group in the observed side effects. The occurrence of various degrees of GVHD was compared with historical data from patients, who had only received the standard treatment.
This resulted in lower resistin levels compared to baseline. The hormone resistin is associated with obesity and insulin resistance. Compared to baseline, glucose-dependent insulinotropic peptide levels were elevated after CBD treatment. This incretin hormone is produced in the proximal duodenum by K cells and has insulinotropic and pancreatic b cell preserving effects. CBD was well tolerated in the patients. However, with the comparatively low CBD concentrations used in this phasetrial, no overall improvement of glycemic control was observed.
When weight and appetite were measured as part of a measurement battery for side effects, results were inconclusive. For instance, the study mentioned above, where 23 children with Dravet syndrome were treated, increases as well as decreases in appetite and weight were observed as side effects. However, in the safety analysis group, consisting of subjects, 10 showed decreased weight and 12 had gained weight. Both these factors were not controlled for in the reviewed studies.
This review could substantiate and expand the findings of Bergamaschi et al. First, more studies researching CBD side effects after real chronic administration need to be conducted. Many so-called chronic administration studies, cited here were only a couple of weeks long. Second, many trials were conducted with a small number of individuals only.
To perform a throrough general safety evaluation, more individuals have to be recruited into future clinical trials. Third, several aspects of a toxicological evaluation of a compound such as genotoxicity studies and research evaluating CBD effect on hormones are still scarce. Especially, chronic studies on CBD effect on, for example, genotoxicity and the immune system are still missing.
Last, studies that evaluate whether CBD-drug interactions occur in clinical trials have to be performed. In conclusion, CBD safety profile is already established in a plethora of ways. However, some knowledge gaps detailed above should be closed by additional clinical trials to have a completely well-tested pharmaceutical compound. The study was commissioned by the European Industrial Hemp Association. EIHA paid nova-Institute for the review.
Iffland K, Grotenhermen F An update on safety and side effects of cannabidiol: National Center for Biotechnology Information , U. Journal List Cannabis Cannabinoid Res v. Published online Jun 1. Find articles by Kerstin Iffland. The list of CBD oil benefits and health concerns treatable by CBD is so long because these receptors are integral to so many bodily systems.
This is also the reason cannabinoids can be used as a general preventative medicine, protecting the body against the damages of stress and aging. Cannabinoid therapy is connected to the part of the biological matrix where body and brain meet. Since CBD cannabidiol and other compounds in cannabis are so similar to the chemicals created by our own bodies, they are integrated better than many synthetic drugs.
According to Bradley E. By understanding this system, we begin to see a mechanism that could connect brain activity and states of physical health and disease. Reduced Risk of Diabetes and Obesity Several studies have shown that regular cannabis users have a lower body mass index, smaller waist circumferences, and reduced risk of diabetes and obesity.
One report published in the American Journal of Epidemiology , based on a survey of more than fifty-two thousand participants, concluded that rates of obesity are about one-third lower among cannabis users. CBD on its own was shown in to lower the incidence of diabetes in lab rats,[ ] and in an Israeli-American biopharmaceutical collective began stage 2 trials related to using CBD to treat diabetes. Respondents who had used cannabis in their lifetime but were not current users showed similar but less pronounced associations, indicating that the protective effect of cannabis fades with time.
The research emerging about the interplay between cannabinoids and insulin regulation may lead to some major breakthroughs in the prevention of obesity and type 2 diabetes. A study that measured data from 4, participants on the effect of cannabis on metabolic systems compared non-users to current and former users.
Linked to diet and lifestyle, atherosclerosis is common in developed Western nations and can lead to heart disease or stroke. It is a chronic inflammatory disorder involving the progressive depositing of atherosclerotic plaques immune cells carrying oxidized LDL or low-density lipoproteins. A growing body of evidence suggests that endocannabinoid signaling plays a critical role in the pathology of atherogenesis.
Studies have demonstrated that inflammatory molecules stimulate the cycle leading to atherosclerotic lesions. The CB2 receptor is also stimulated by plant-based cannabinoids. Reduced Risk of Cancer Could cannabidiol help prevent tumors and other cancers before they grow? A study showed that animals treated with CBD were significantly less likely to develop colon cancer after being induced with carcinogens in a laboratory. Continuing research is focused on the best ratio of CBD to THC and the most effective dose level in cancer prevention and treatment.
Cannabinoids are neuroprotective, meaning that they help maintain and regulate brain health. The effects appear to be related to several actions they have on the brain, including the removal of damaged cells and the improved efficiency of mitochondria.
Extra glutamate, which stimulates nerve cells in the brain to fire, causes cells to become over-stimulated, ultimately leading to cell damage or death. Thus, cannabinoids help protect brain cells from damage, keeping the organ healthy and functioning properly.
CBD has also been shown to have an anti-inflammatory effect on the brain. As the brain ages, the creation of new neurons slows down significantly. In order to maintain brain health and prevent degenerative diseases, new cells need to be continuously created. A study showed that low doses of CBD- and THC-like cannabinoids encouraged the creation of new nerve cells in animal models, even in aging brains. Cannabinoids are facilitative of the process of bone metabolism—the cycle in which old bone material is replaced by new at a rate of about 10 percent per year, crucial to maintaining strong, healthy bones over time.
CBD in particular has been shown to block an enzyme that destroys bone-building compounds in the body, reducing the risk of age-related bone diseases like osteoporosis and osteoarthritis.
In both of those diseases, the body is no longer creating new bone and cartilage cells. CBD helps spur the process of new bone-cell formation, which is why it has been found to speed the healing of broken bones and, due to a stronger fracture callus, decrease the likelihood of re-fracturing the bone bones are 35—50 percent stronger than those of non-treated subjects.
Protects and Heals the Skin The skin has the highest amount and concentration of CB2 receptors in the body. When applied topically as an infused lotion, serum, oil, or salve, the antioxidant a more powerful antioxidant than vitamins E and C  in CBD oil has many benefits and can repair damage from free radicals like UV rays and environmental pollutants.
Cannabinoid receptors can be found in the skin and seem to be connected to the regulation of oil production in the sebaceous glands. In fact, historical documents show that cannabis preparations have been used for wound healing in both animals and people in a range of cultures spanning the globe and going back thousands of years.
The use of concentrated cannabis and CBD oils to benefit and treat skin cancer is gaining popularity with a number of well-documented cases of people curing both melanoma and carcinoma-type skin cancers with the topical application of CBD and THC products.
Best known is the case of Rick Simpson, who cured his basal cell carcinoma with cannabis oil and now has a widely distributed line of products. Cannabis applied topically is not psychoactive. Cannabinoids have been proven to have an anti-inflammatory effect in numerous studies. CBD engages with the endocannabinoid system in many organs throughout the body, helping to reduce inflammation systemically. The therapeutic potential is impressively wide-ranging, as inflammation is involved in a broad spectrum of diseases.
The oral use of cannabis and CBD for anxiety appears in a Vedic text dated around BCE, and it is one of the most common uses of the plant across various cultures. While THC can increase anxiety in some patients, it lowers it in others.
However, CBD effects have been shown to consistently reduce anxiety when present in higher concentrations in the cannabis plant. On its own, CBD has been shown in a number of animal and human studies to lessen anxiety.
The stress-reducing effect appears to be related to activity in both the limbic and paralimbic brain areas. A research review assessed a number of international studies and concluded that CBD has been shown to reduce anxiety , and in particular social anxiety, in multiple studies and called for more clinical trials. It is suggested that patients work with a health care practitioner experienced in recommending cannabidiol or medicinal cannabis so that dosage and delivery methods can be developed and fine-tuned on an individual basis.
At the same time, educated and aware patients can be their own highly informed health consultants. For anxiety, CBD products with a ratio of High-CBD cannabinoids can be very effective in reducing chronic anxiety, treating temporary stress, and protecting the body from the physiological effects of both. Varieties high in linalool, a terpene shared with lavender, are known to be effective for relieving anxiety.
Always start with the micro dose to test sensitivity and go up as needed within the dosing range, before going to the next, until symptoms subside. The micro to standard dose is usually recommended to treat stress and anxiety with CBD. For relief of immediate symptoms, as in a panic or anxiety attack, vaporizing or smoking work well.
The medication lasts one to three hours, whereas most ingested products, including CBD oil, take thirty to sixty minutes before taking effect and last six to eight hours. Herbal vaporizers that use the whole plant are also an effective delivery method.
Sublingual sprays or tinctures taken as liquid drops take effect quickly and last longer than inhaled products. The Cannabis Health Index CHI is an evidence-based scoring system for cannabis in general, not just CBD oil effects and its effectiveness on various health issues based on currently available research data.
Using this rubric and based on eleven studies, cannabis rated in the possible-to-probable range of efficacy for treatment of anxiety. Elixinol Organic High Potency CBD Capsules Elixinol offers a highly concentrated, high-potency, organic whole-hemp plant CBD oil , which is naturally extracted with carbon dioxide and free of all synthetics and chemicals.
Whole-hemp plant extracts contain synergistic compounds that are believed to enhance the effectiveness and benefits of CBD. Clinical depression is a serious mood disorder characterized by persistent sadness and loss of interest, sometimes leading to decreased appetite and energy and suicidal thoughts. Commonly used pharmaceuticals for depression often target serotonin, a chemical messenger that is believed to act as a mood stabilizer.
The neural network of the endocannabinoid system works similarly to the way that serotonin, dopamine, and other systems do, and, according to some research, cannabinoids have an effect on serotonin levels. Whereas a low dose of THC increases serotonin, high doses cause a decrease that could worsen the condition.
CBD products with a ratio of Specifically, products made with Valentine X or Electra 4 are more energizing, helping relieve depression.
When low energy is an issue, sativa or other stimulating strains can be helpful for improving energy and focus when THC can be tolerated. Varieties that are high in the terpene limonene are recommended for mood elevation. Always start with the micro dose to test sensitivity and go up as needed within the dosing range before going to the next, until symptoms subside.
The micro to standard dose is usually recommended to treat depression. Vaporized or smoked cannabis is recommended for relief of immediate symptoms, or a boost in dosage, and it can also be useful for sleep issues. The Cannabis Health Index CHI is an evidence-based scoring system for cannabis in general, not just CBD effects and its effectiveness on various health issues based on currently available research data. Using this rubric and based on twenty-one studies, cannabis rated in the possible-to-probable range of efficacy for treatment of depression.
Research in called for clinical trials to look into the effectiveness of cannabinoids for bipolar disorder manic depression. It also works on the GABA-glutamate system and the hypothalamic-pituitary-adrenal axis. Its main role is restoring balance through inhibition when levels are too high and enhancement when they are too low.
This is the most likely reason phytocannabinoids in general and CBD specifically are able to regulate depression and anxiety. The scientific inquiry into cannabis over the past several decades has confirmed that it is an effective and safe analgesic for many kinds of pain. Of all the reasons that people use CBD today, pain is the most common.
Can CBD oil relieve arthritis pain?
CBD oil is legal in 30 states where medicinal and/or recreational For the rest of CBD's potential uses, there is simply too little evidence the quality of CBD oil being produced and its potential side effects, the experts added. While the majority of CBD oil users don't experience any negative effects, as with any treatment – natural or otherwise – there are possible side. Many small-scale studies have looked into the safety of CBD in adults. Researchers have found no significant side effects on the.