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The Health Benefits of CBD Oil

This cannabis extract may help treat nerve pain, anxiety, and epilepsy

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Cathy Wong is a nutritionist and wellness expert. Her work is regularly featured in media such as First For Women, Woman’s World, and Natural Health.

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Lana Butner, ND, LAc, is a board-certified naturopathic doctor and licensed acupuncturist in private practice in New York City .

CBD oil is an extract of Cannabis indica or Cannabis sativa—the same plants that, when dried, make marijuana. CBD oil is believed by some to treat pain, reduce anxiety, and stimulate appetite in the same way that marijuana does, but without its psychoactive effects. CBD has also shown promise in treating certain types of seizures.

CBD is the short name for cannabidiol, one of the two chemicals—among the dozens in cannabis—that have the most health benefits. The other, tetrahydrocannabinol (THC), is what gets people “high.” CBD oil generally does not contain THC, although some trace amounts may be present in products sold in certain states.

CBD oil contains CBD mixed with an inert carrier oil, such as coconut oil or hemp seed oil. The bottled oil, called a tincture, is sold in various concentrations. There are also CBD capsules, CBD gummies, and under-the-tongue CBD sprays.

Health Benefits

CBD’s exact mechanism of action is unclear. Unlike THC, CBD has a relatively low affinity for cannabinoid receptors in the brain. These are the molecules to which THC binds to elicit its psychoactive effects.

Instead, CBD is thought to influence other receptors, including opioid receptors that regulate pain and glycine receptors involved in the regulation of the “feel-good” hormone serotonin.

Proponents claim that CBD oil can treat a wide variety of health problems, including:

  • Acne
  • Anorexia
  • Anxiety
  • Chronic pain
  • Depression
  • Drug addiction and withdrawal
  • Epilepsy
  • Glaucoma
  • High blood pressure
  • Insomnia
  • Muscle spasms
  • Parkinson’s disease

Despite the growing popularity of CBD use, CBD oil remains sorely under-researched. As such, some of these claims are better supported by studies than others.

Here is just some of what the current evidence says.

Anxiety

CBD shows promise in the treatment of anxiety disorders, suggests a 2015 review of studies in the journal Neurotherapeutics.   According to the investigators, CBD demonstrated potent anxiolytic (anxiety-relieving) effects in animal research, albeit with counterintuitive results.

In all but a few studies, lower doses of CBD (10 milligrams per kilogram, mg/kg, or less) were better able to treat symptoms of anxiety. Higher doses (100 mg/kg or more) exhibited virtually no effect.

Part of this response could be explained by the way that CBD acts in the brain. In many cases, CBD works as an agonist, meaning that it triggers an opposite response when binding to a receptor. It is possible that low doses can elicit a positive agonist response, while high doses overwhelm the brain and trigger a compensatory effect to fight CBD’s effects.

Among the few human trials evaluating CBD’s anxiolytic effects was one published in the Brazilian Journal of Psychiatry in 2019.   For this study, 57 men were given either CBD oil or a placebo before a public-speaking event. Anxiety was evaluated using physiological measures (such as blood pressure, heart rate, etc.) and a relatively reliable test for mood states known as the Visual Analog Mood Scale (VAMS).

According to the investigators, men provided 300 mg of CBD exhibited less anxiety than those given a placebo. Interestingly, those provided 100 mg or 600 mg of CBD oil did not.

Addiction

CBD oil may benefit those with drug addiction, suggests a 2015 review of studies published in Substance Abuse.

In an analysis of 14 published studies (nine involving animals and five involving humans), scientists with the University of Montreal concluded that CBD “showed promise” in treating people with opioid, cocaine, or psychostimulant addiction.

However, the effect of CBD on each addiction type was often very different. With opioid addiction, for example, CBD showed little effect in minimizing withdrawal symptoms in the absence of THC. By contrast, CBD on its own appeared effective in minimizing drug-seeking behaviors in users of cocaine, methamphetamine, and other psychostimulant drugs.

There have also been suggestions that CBD may aid in the treatment of cannabis and nicotine addiction. Further research is needed.

Nerve Pain

Medical marijuana is frequently prescribed to people with intractable (treatment-resistant) pain, including those with terminal cancer. There is some evidence that CBD contributes to this benefit.

According to a 2012 study in the Journal of Experimental Medicine, rats injected with inflammatory chemicals in their hind feet experienced less inflammation and neuropathic pain when treated with an oral dose and spinal injection of CBD.  

Scientists believe that CBD reduces nerve pain by binding to glycine receptors in the brain that regulate the speed at which nerve signals pass between nerve cells.

Human studies evaluating the use of CBD in treating chronic pain are lacking. Those that do exist almost invariably include THC, making it difficult to isolate CBD’s distinct effects.

Heart Health

CBD oil may reduce the risk of heart disease by alleviating hypertension (high blood pressure) in certain people, suggests a 2017 study in JCI Insight.  

For this study, nine healthy men took either 600 mg of CBD or the same dose of a placebo. According to the researcher, those treated with CBD had lower blood pressure before and after exposure to stressful stimuli (including exercise or extreme cold).

In addition, the stroke volume (the amount of blood remaining in the heart after a heartbeat) was significantly reduced, meaning that the heart was pumping more efficiently.

The findings suggest that CBD oil may be a suitable complementary therapy for people whose hypertension is complicated by stress and anxiety. However, there is no evidence that CBD oil can treat hypertension on its own or prevent hypertension in people at risk. While stress is known to complicate high blood pressure, it cannot cause hypertension.

Seizures

In June 2018, the U.S. Food and Drug Administration (FDA) approved Epidiolex, a CBD oral solution used for the treatment of certain rare forms of epilepsy in children under 2—Dravet syndrome and Lennox-Gastaut syndrome.   Both are exceptionally rare genetic disorders causing lifelong catastrophic seizures that begin during the first year of life.

Outside of these two disorders, CBD’s effectiveness in treating seizures is uncertain. Even with Epidiolex, it is uncertain whether the anti-seizure effects can be attributed to CBD or some other factor.  

There is some evidence that CBD interacts with seizure medications such as Onfi (clobazam) and “boosts” their concentration in the blood. This would not only make the drugs more effective but extend their half-lives as well. Further research is needed.

Possible Side Effects

Clinical research has shown that CBD oil can trigger side effects. Severity and type can vary from one person to the next.   Common symptoms include:

  • Anxiety
  • Changes in appetite
  • Changes in mood
  • Diarrhea
  • Dizziness
  • Drowsiness
  • Dry mouth
  • Nausea
  • Vomiting

CBD oil may also increase liver enzymes (a marker of liver inflammation). People with liver disease should use CBD oil with caution, ideally under the care of a doctor who can regularly check blood liver enzyme levels.

CBD oil should be avoided during pregnancy and breastfeeding. A 2018 study from the American Academy of Pediatrics warned women to avoid marijuana during pregnancy due to the potential risks to a baby’s development.   Although it is unclear how CBD contributes, CBD is known to pass through the placental barrier.

If you are thinking about using CBD oil to treat a health condition, be sure to speak with your healthcare provider to ensure that it is the right option for you.

Since some CBD oils contain trace amounts of THC, you should avoid driving or using heavy machinery when taking CBD oil, particularly when first starting treatment or using a new brand.

Interactions

CBD oil can interact with certain medications, including some drugs used to treat epilepsy. CBD inhibits an enzyme called cytochrome P450 (CYP450), which certain drugs use for metabolization. By interfering with CYP450, CBD may either increase the toxicity or decrease the effectiveness of these drugs.

Potential drug-drug interactions with CBD include:

  • Anti-arrhythmia drugs like quinidine
  • Anticonvulsants like Tegretol (carbamazepine) and Trileptal (oxcarbazepine)
  • Antifungal drugs like Nizoral (ketoconazole) and Vfend (voriconazole)
  • Antipsychotic drugs like Orap (pimozide)
  • Atypical antidepressants like Remeron (mirtazapine)
  • Benzodiazepine sedatives like Klonopin (clonazepam) and Halcion (triazolam)
  • Immune-suppressive drugs like Sandimmune (cyclosporine)
  • Macrolide antibiotics like clarithromycin and telithromycin
  • Migraine medications like Ergomar (ergotamine)
  • Opioid painkillers like Duragesic (fentanyl) and alfentanil
  • Rifampin-based drugs used to treat tuberculosis

Many of these interactions are mild and require no adjustment to treatment. Others may require a drug substitution or the separation of doses by several hours.

To avoid interactions, advise your doctor and pharmacist about any drugs you are taking, whether they are prescription, over-the-counter, herbal, or recreational.

Dosage and Preparation

There are no guidelines for the appropriate use of CBD oil. CBD oil is usually delivered sublingually (under the tongue). Most oils are sold in 30-milliliter (mL) bottles with a dropper cap.

There is currently no known “correct” dose of CBD oil. Depending on who you speak to, the daily dose can range anywhere from 5 mg to 25 mg.

The tricky part is calculating the exact amount of CBD per milliliter of oil. Some tinctures have concentrations of 1,500 mg per 30 mL, while others have 3,000 mg per mL (or more).

How to Calculate CBD Dose

To determine an exact dose of CBD, remember that each drop of oil equals 0.05 mL of fluid. This means that a 30-mL bottle of CBD oil will have roughly 600 drops. If the concentration of the tincture is 1,500 mg/mL, one drop would contain 2.5 mg of CBD (1,500 mg ÷ 600 drops = 2.5 mg).

To use CBD oil, place one or more drops under the tongue and hold the dose there for 30 to 60 seconds without swallowing. Capsules and gummies are easier to dose, although they tend to be more costly. CBD sublingual sprays are used mainly for convenience.

What to Look For

Aficionados of CBD oil will tell you to buy full-spectrum oils over CBD isolates. Unlike isolates, which contain CBD only, full-spectrum oils contain a variety of compounds found naturally in the cannabis plant, including proteins, flavonoids, terpenes, and chlorophyll. Alternative practitioners believe these compounds offer more substantial health benefits, although there is no clear evidence of this.

Remember, because CBD oils are largely unregulated, there is no guarantee that a product is either safe or effective.

According to a 2017 study in the Journal of the American Medical Association, only 30.95% of CBD products sold online were correctly labeled. Most contained less CBD than advertised, while 21.43% had significant amounts of THC.  

Here are a few tips to help you find the best CBD oil:

  • Buy American. Domestically produced CBD oil tends to be safer because of better growing and refining practices.
  • Go organic. Brands certified organic by the U.S. Department of Agriculture (USDA) are less likely to expose you to pesticides and other harmful chemicals.
  • Read the product label. Even if you choose a full-spectrum oil, don’t assume that every ingredient on the product label is natural. There may be preservatives, flavorings, or thinning agents that you don’t want or need. If you don’t recognize an ingredient, ask the dispenser what it is or check online.

Are CBD Oil and Hemp Oil the Same?

Not necessarily. Although some people use the terms synonymously, they may also be referring to hemp seed oil, which is primarily used for cooking, food production, and skincare products. CBD oil is made from the leaves, stems, buds, and flowers of the Cannabis indica or Cannabis sativa plant and should contain less than 0.3% THC. Hemp oil is made from the seeds of Cannabis sativa and contains no TCH.

CBD oil is made from cannabidiol, a non-intoxicating extract of marijuana, and is believed to treat pain, anxiety, and seizures.

What is CBD Syrup?

CBD Syrup is pretty much exactly what it sounds like. It’s a thick, sweetened liquid infused with CBD. CBD syrup is really quite versatile and can be taken on its own (via dropper or spray) or mixed into your favorite drink.

What is CBD Syrup?

For those of us who aren’t into vaping, pills, or other delivery methods, CBD syrup a tasty and easy alternative way to take CBD with pretty much zero learning curve.

CBD syrup comes in all sorts of flavors and potencies, so it’s pretty easy to find something you can customize to your needs. Cloud N9ne syrups, for instance, come in watermelon, cherry, grape, and blueberry varieties, and are said to help with sleep, anxiety, and pain. And if you check out any of the Cloud N9ne syrup reviews online, you’ll see that many users love the flavors and get pretty creative in how they mix it.

You’ll also see that many CBD syrups for sale focus on addressing specific health and wellness needs. For instance, some CBD syrups are designed to manage pain or suppress your appetite, while others promise to help you relax and getter a better sleep at night.

How is CBD Syrup Made?

When you break it down, CBD syrup is just a combination of a simple syrup and CBD isolate or CBD oil. A simple syrup is usually a mix of water and a sweetener like agave, honey, or sugar. Once blended, herbs, flavors, or botanicals can be added and simmered into the mix for a more tailored flavor profile, and ingredients like vegetable glycerine may be added to give the CBD something to bond to and thicken the syrup.

How much CBD is in a dose of syrup?

CBD syrup comes in a wide range of potencies. For example, a 60 ml bottle of syrup from one brand may contain just 60 mg of CBD. While another brand’s bottle may have as much as 500 mg. So, if you’re new to CBD, you may want to choose something that has a lower concentrate and dose of around 1mg per 10 pounds of body weight. Once you have a good idea of what kind of effects that dose has on you, you can make incremental changes over time until you get the dose that’s right for you.

Can you mix CBD Syrup with Alcohol?

There’s no doubt that CBD infused beer and cocktails have been popping up everywhere. But is it wise to partake? Many people believe that the effects of CBD syrup and alcohol (like sleepiness and lower inhibitions) are amplified when you mix them together. And that the results will not only be more intense, but longer-lasting.

Since that’s not always a good thing, many people are ditching the alcohol, and are instead mixing CBD lean syrup with their favorite soda like Sprite or cream soda. CBD lean syrup has a CBD dose that’s lower than the medical threshold, so it’s less potent and legally available just about anywhere as long as you’re 18 or older.

How long does it take CBD syrup to work?

The onset and duration of CBD effects is different for each type of delivery method. Because you ingest CBD syrup, it may take a little time for you to metabolize it and start feeling some of the effects. On an empty stomach, you may begin to feel some of the effects within half an hour. But if you just polished off a Burger King combo, it may take an hour or more while to feel the effects while your Whopper competes with the CBD for your metabolism’s attention.

So, while other methods of taking CBD may allow you to feel the effects faster, CBD syrup is thought to make those effects last longer.

Is CBD Syrup Legal

Since CBD products are sourced from industrial hemp, which contains less than 0.3% THC by definition, CBD syrup (and all CBD products for that matter) can now be legally manufactured and purchased in all 50 states. So, unless that changes, it’s all perfectly legal.

Best places to purchase CBD syrup

Dispensaries are always a great place to find CBD syrups, but there are also lots of options online. Sites like DirectCBDOnline offer a variety of popular brands like Hemp Bombs and Green Roads. And you can also buy direct from the makers themselves if you know which brand you’re looking for. Manufacturers like BuyLegalMeds.com (makers of Cloud N9ne) and LiquidCBDSyrup.com (makers of Isolated Liquid CBD Syrup) both offer excellent service and the full line of their syrup product.

And if you not really sure what you’re looking for, you may want to check around for CBD syrup review sites like Cbdbreaker.com to get a better sense of what you’re getting yourself into before you make your first purchase.

Either way, with the growing popularity of CBD syrup, the options are only getting better. The only real challenge now is where to start first.

CBD syrup – just as delicious as it sounds. The thick, sweetened liquid comes in a variety of flavours and potencies to fulfill your CBD needs.