September 9


What Are The Side Effects Of CBD?

By Great Canadian Herb

September 9, 2022

The side effects of CBD are often a mystery to people. Many people hear about the benefits of CBD and decide to start using it without knowing what to expect.

While most side effects are mild and tolerable, some can be quite unpleasant. In this article, we will discuss the good, the bad, and the ugly side effects of CBD!

Side Effects Of CBD

CBD is a non-intoxicating compound found in cannabis. It is touted for its therapeutic properties, which include relief from anxiety, pain, and inflammation.

Though CBD is generally well tolerated, it can cause some side effects. Below, we will discuss some of the more common side effects of CBD.

Nausea or Vomiting

One of the most common side effects of CBD is nausea and vomiting. This effect is usually mild and goes away after a few hours.

However, sometimes, nausea and vomiting can be more severe and may require medical treatment. If you experience severe nausea or vomiting after taking CBD, it is important to seek medical attention immediately.

In some cases, taking a different form of CBD can help. For example, if CBD oil makes you nauseous, trying a CBD capsule or CBD vape might help instead.


Diarrhea is caused by various things- such as food intolerance, gastroenteritis, or medications- and can often lead to dehydration if not resolved quickly.

When it comes to CBD, diarrhea is a relatively common side effect. This is because CBD binds to certain receptors in the gut, which can alter motility and cause increased intestinal activity.

While this isn't usually a serious issue, it can be uncomfortable and lead to dehydration if not resolved quickly. If you're taking CBD and experiencing diarrhea, it's important to drink plenty of fluids until the symptoms resolve.

Dry Mouth

Dry mouth is a relatively common side effect of all cannabinoids, not just CBD. This is because cannabinoids interact with receptors in the saliva-producing glands, leading to reduced saliva production.

If you experience dry mouth after taking CBD, drinking water or sucking on sugar-free candy can help alleviate the symptoms. 

Low Blood Pressure

One of the more potentially serious side effects of CBD is low blood pressure. When blood pressure drops too low, it can lead to lightheadedness, fainting, and even shock.

This is more likely to occur when taking high doses of CBD or when taking CBD along with other medications that lower blood pressure.

If you experience any of these symptoms after taking CBD, stop taking it and seek medical attention immediately. 


Headaches are a common side effect of many medications, and CBD is no exception. If you experience headaches after taking CBD, it's best to either lower your dose or stop using it.

Appetite Changes

Some people report that CBD increases their appetite, while others find that it decreases their appetite. If you find that your appetite changes after starting CBD, simply adjust your dose until you find an amount that works for you.

Medication Interactions 

CBD can interact with other medications you're taking. This is because it's processed by the same liver enzyme that breaks down many medications.

As a result, taking CBD and other medications at the same time can increase or decrease the effects of both. If you're concerned about interactions, talk to your doctor before taking CBD. 

Drowsiness or Fatigue

People taking large doses of CBD have reported feeling drowsy or fatigued throughout the day. In general, it is best to start with a low dose and see how you feel after taking it.

May Thin Blood

CBD may interact with medications that thin the blood. This could increase the effects and side effects of these medications. If you're taking a blood thinner, talk to your doctor before taking CBD.

Factors That Increase The Chance of Experiencing CBD Side Effects

CBD Dosage

One of the most important factors that determine whether or not someone will experience side effects from CBD is dosage.

Taking too much CBD can increase the chance of side effects; on the other hand, taking too little CBD may not provide the desired results.

Remember to start with a low dose and gradually increase it until you find your sweet spot. 

CBD Quality

The quality of the CBD product you're taking also plays a role in side effects. Poor-quality products may be contaminated with heavy metals or other toxins that can cause serious health problems.

It's important to do your research and purchase your CBD from a reputable source. 

Individual Variation

Another important factor to consider is that everyone reacts to cannabinoids differently. Some people are more sensitive to them than others and, therefore, more likely to experience side effects.

Factors like age, weight, and overall health can all affect how your body reacts to cannabinoids. 

CBD Isolate vs Full Spectrum 

The type of CBD product you take can also affect your risk of experiencing side effects from taking CBD oil.

If you are sensitive to THC or other compounds found in cannabis plants, then you may want to choose a product that contains only CBD isolate.

However, if you want the full range of health benefits that cannabis has to offer, then a Full Spectrum product may be a better choice for you.


CBD is generally considered safe for most people; however, there are some risks and side effects associated with taking it.

The key to avoiding these side effects is to start with a low dose and increase gradually over time until you find the right amount for yourself.

Always go with high-quality products that have verified third-party lab reports; this will help ensure that they are free of harmful contaminants.

Lastly, be aware of the different types of CBD products available and choose the one that is right for you based on your individual needs and preferences

About the author

As consumers ourselves, we know how important it is to know exactly what it is we are putting in our bodies. Here at Great Canadian Herb you'll find cannabis and CBD education, reviews, buying advice, and much more. As cannabis enthusiasts, we have dedicated our time and resources to relay accurate, easy to understand information on everything in the Canadian cannabis industry.

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