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What are Side Effects of CBD Oil?

What are CBD oil side effects.

The use of CBD oil in the wellness industry has increased astronomically in the past few years, thanks to various reports about the benefits of the miracle drug. The natural compound has been lauded for its potential in alleviating various diseases and symptoms ranging from depression to excruciating pain. However, while recognizing the potential benefits of this natural medicine, you mustn’t ignore the accompanying side effects. Before using any form of medication, you should inquire about its side effects on your body asides from its benefits.

Does CBD oil have any damaging side effects? This article discusses these questions and more that you need to know about CBD oil.

Potential CBD Oil Side Effects

Yes, CBD is highly beneficial, and it is not habit-forming like THC, but you still need to take precautions when using it. Even though it has been successful in the health industry in recent years, it is not without its side effects. It should be noted that the medicine has been proven to be safe for humans and animals, but there are a few drawbacks that you should consider before purchasing a CBD product.


One of the commonest side effects of CBD oil in humans is drowsiness. Although this side effect can be considered a benefit when pictured from a different perspective. Medicine experts have long considered cannabis as a remedy for insomnia and other sleep disorders, and CBD oil is no different. Before adding CBD to your food or drink, you should be sure that you are in a comfortable environment in case the effect kicks in.

CBD’s drowsy effect can hit very strongly, so it is recommended not to use it with other sedating medications to avoid catastrophic consequences. Along with its sedation effect, you may also feel light-headed after consuming this natural medicine.


Although it doesn’t happen very frequently, some users report gastrointestinal issues after consuming CBD oil. The natural compound has been known to cause stomach upsets and diarrhea. However, this is dependent on the user and their medical history. Hence, it is important to monitor physical and physiological changes after using the medicine.

Sometimes, experiencing diarrhea or stomach pain after using the CBD is associated with consuming excessively high amounts. Discuss with your doctor to get the appropriate dosage before using if you have a medical history of diarrhea or any other gastrointestinal problems.


In some cases, you may begin to feel nauseated after ingesting CBD products. It is a widespread side effect among people that are sensitive to CBD compounds. People in this situation may experience symptoms that include vomiting, dizziness, and other side effects associated with nausea.

Sometimes, this is caused by the body’s inability to digest CBD supplements properly. Other times, it is because the product has been used in an unregulated dosage. If you get more CBD into your body than it can handle, your system finds a way to flush it out, and it is done unpleasantly.

Loss of Appetite

Another common negative side effect of CBD oil in humans is the loss of appetite among recipients. While the sister compound, THC, may cause hunger after consumption, the reverse is the case for CBD oil. A 2012 study carried out on rats showed that exposure to CBD caused the subjects to eat less. This side effect of cannabis has been modified into one of its best features. Cannabidiol is now often recommended for weight loss programs. Proponents for the CBD weight loss theory also assert that it burns calories by converting white fat in the body to brown fat.

Dry Mouth

Users of CBD oil may experience dryness in the oral cavity. This symptom affects the mouth, causing a sticky and dry sensation after CBD ingestion. This side effect is not limited to CBD alone but other products of the cannabis plant. Asides from the mouth, this symptom can also affect the eyes and cause you to feel uneasy. You can alleviate the unpleasant sensation in your mouth by drinking a lot of water and chewing gum. Additionally, you can suck on ice cubes or other substances that keep saliva flowing.

Interaction with Other Medications

Like other medicine, there is a risk of toxicity and side effects when CBD oil is used simultaneously with certain medications. Using CBD with OTC meds like opioids and benzodiazepines can cause you to feel tired or even suffer accidental falls. When used in collaboration with heartburn drugs like Prilosec, you could suffer from severe diarrhea.

In addition, CBD may alter the effect of other drugs and render them ineffective. To be on the safe side, ensure that you consult your doctor before using CBD if you’re currently on another medication.

Lower Blood Pressure

Potentially, one of the long-term side effects of CBD is low blood pressure. A study on CBD has found that the medicine may have relaxant effects on blood vessels and blood flow in humans. The product is believed to be useful in lowering blood pressure among people with high B.P. Although this is beneficial, the consequences may be damaging when consumed by a person with low blood pressure. If you have ever had issues with your blood pressure, ensure that you consult your doctor to discuss the potential effects of CBD oil on your body before ingesting it.

Side Effects of CBD on Pets

Although the consumption of CBD oil has been proven to be safe and beneficial for animals, the use of certain CBD products can cause peripheral adverse reactions in pets like cats and dogs. Thankfully, most of these effects can be countered or reduced.

Vomiting and Diarrhea

Some of the side effects of CBD oil in dogs include vomiting, inappetence, and diarrhea. These effects are also common in humans, and they occur when a large amount of the substance is consumed. In most cases, these symptoms require no care and will fade within hours.

Possible Liver Changes

Although multiple research reports have proven that CBD has no damaging effect on the liver of pets, a 2018 study showed that ingestion of the substance in large quantities could cause minor alterations. The researchers found that in higher doses, some dogs showed elevated levels of certain liver enzymes. While no serious effects like liver damages were recorded, it is advised that precaution is taking during its use. Avoid using CBD in large doses among animals and ensure it is not used on pets with existing liver conditions.

Avoid CBD with THC for Pets

Because the CBD market is not well regulated, some manufacturers distribute CBD products with a high level of THC. THC, another cannabinoid from the cannabis plant, has toxic effects on cats and dogs. Some of these effects are vomiting, restlessness, and trouble standing. Ensure that any CBD product administered to pets contains no more than 0.3% THC. You can make sure of these specifications by purchasing products that come with a certificate of analysis.

How to Use CBD Oil Safely?

If this is your first time using a CBD product, speaking to a medical practitioner about the appropriate dosage is advisable. The CBD dosage that you’ll use depends on the condition and symptoms to be treated. Although a lot of research into CBD dosage is still ongoing, most experts recommend that users of this drug start with a smaller dosage. Since CBD oil comes in a tincture bottle with the stated mg, it is easier to determine what you’re consuming. 25 mg is the recommended starting dose by most experts, and this can be increased based on the level of effectiveness.


CBD oil is a beneficial supplement, and its benefits outweigh its cons. It is advisable to work alongside a health care professional to ensure safety during the use of the products. We hope you found this article helpful. You are welcome to check out our best reviews, where you’ll find everything that suits your budget and taste.


Does CBD oil have side effects?

Although CBD oil has numerous benefits, these can also come with side effects and are minor in most cases. Some common adverse reactions to watch out for are diarrhea, loss of appetite, drowsiness, and dry mouth.

What are the side effects of CBD oil with THC?

In its pure state, the side effects of CBD oil are mostly minor. However, using CBD with high THC opens you to a whole new world of effects, including addiction and depression.

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