CBD Oil bottle

Are There Side Effects To CBD?

CBD, or cannabidiol, is an active and natural compound extracted from the cannabis plant, which is used in a wide range of wellness products, such as CBD tea, CBD oils, CBD concentrates, CBD vapes and much more. In recent years, awareness of this supplement has grown exponentially, as well as its popularity across the UK.

CBD, as opposed to THC, is not psychoactive and won’t get you high, but it offers a number of reported health benefits that individuals may potentially experience. These include therapeutic benefits such as managing the symptoms of stress and anxiety, improved sleep quality, acute and chronic pain relief, and benefits from its anti-inflammatory properties. However, more research is needed.

Anyone looking to start taking CBD products may be curious to know and understand whether there are side effects to CBD, what the side effects are, and what to do if they occur. We’ll explore the potential side effects in this guide, as well as factors that influence them.

Flatlay of CBD products

Possible side effects of CBD

CBD is well-known for its potential health benefits, but it does also have some side effects. Whilst cannabidiol is generally well-tolerated and considered safe for most users, some individuals may experience these adverse effects. It’s important to note that they are typically mild and rare, but being aware of them can help you make informed decisions about CBD consumption.

Here are the most commonly reported side effects:

Dry mouth

You may also see this being referred to as “cottonmouth”. Dry mouth is one of the more common side effects associated with CBD, and it is thought to occur due to CBD’s influence on the salivary glands, which can lead to reduced saliva production. Typically, this only lasts as long as CBD remains active in your system, which can, on average, last between 2-6 hours. However, this varies based on many factors, including the CBD dose, metabolism speed, and consumption method.


Some users report feeling drowsy or sleepy after taking CBD, particularly at higher doses. This is thought to be due to its effects on the body’s endocannabinoid system, which plays a key role in regulating various physiological processes, including sleep and wake cycles. While this effect can be beneficial when using CBD as a sleep aid, it’s advisable to be cautious in many instances, for example if you need to drive or operate machinery.

Changes in appetite

CBD can affect different users in opposite ways when it comes to appetite. While some may experience an increase in appetite, others might find their appetite suppressed. It’s one example of why it’s useful to journal the effects you experience from CBD products so that you can understand how you personally respond.

Mild gastrointestinal issues

In a few cases, CBD can cause mild digestive issues like diarrhoea or nausea, especially when taken in large quantities or on an empty stomach. To help avoid this side effect, take lower doses and avoid taking CBD if you haven’t recently eaten.


Rarely some users might experience headaches after taking CBD, which could be due to the dosage, the quality of the CBD, or individual sensitivities. Again, make notes in a journal to learn your body’s responses to cannabidiol.

Generally, these side effects are thought to be mild and infrequent. Most users find that any side effects they experience are easily manageable and do not significantly impact their daily lives. Additionally, as CBD research continues to grow, these findings are constantly being refined and better understood.

As with any supplement or health product, starting with a low dose is advisable to see how your body reacts and consult with a healthcare provider if you have any safety concerns or are taking other medications.

Factors influencing side effects

When it comes to CBD, understanding the factors that influence side effects is crucial for a safe and positive experience. Whether you’re a seasoned CBD user or exploring it for the first time, being aware of these factors can help you navigate your CBD journey more effectively.

  • Dosage: The amount of CBD you consume significantly affects the likelihood and intensity of side effects. High doses are more likely to lead to noticeable side effects, such as drowsiness or digestive discomfort. Finding a dosage that provides the desired benefits without adverse effects is essential.
  • Individual body chemistry: Everyone’s body reacts differently to CBD, influenced by unique factors like metabolism, genetics, and overall health. What works for one person might not work for another, and some might be more sensitive to CBD than others.
  • Frequency of consumption: Regular use of CBD can affect how your body responds over time. For some, consistent use may decrease side effects as the body becomes accustomed to CBD. For others, prolonged use might increase sensitivity to certain effects.
  • Importance of starting with low dosages: For beginners, and even when trying a new CBD product, it’s always advisable to start with a lower dosage. This cautious approach allows you to monitor how your body reacts to CBD. Gradually increasing the dosage can help you find your optimal level without overwhelming your system. Starting low and going slow is a key principle in responsible CBD use.
  • Quality of the product: The purity and quality of CBD products also play a role in side effects. High-quality, lab-tested products are more likely to provide consistent and predictable effects. Conversely, products with impurities or unknown concentrations of CBD might lead to unpredictable reactions.

Understanding and respecting these factors can greatly enhance your experience with CBD, and the right approach to CBD is personalised. At The CBD Flower Shop, we only offer high-quality, third-party, lab-tested CBD products made from organic hemp.

CBD and interactions with medications

While CBD is generally considered safe, it can affect how your body processes certain drugs, which is vital to consider if you are currently on medication.

CBD is metabolised in the body by the same group of enzymes in the liver, known as the cytochrome P450 system, that metabolises many pharmaceuticals. This can lead to CBD potentially inhibiting the processing of these drugs, resulting in altered concentrations of the medication in the bloodstream, either too high or too low, which can affect their efficacy and safety.

Some types of medications that could potentially interact with CBD include:

  • blood thinners
  • certain antidepressants
  • some forms of pain medication

For instance, CBD might increase the time it takes for blood thinners to be metabolised, which could increase the risk of bleeding.

Given these potential interactions, it’s essential for anyone considering CBD, especially those on other medications, to consult with a healthcare professional. This is important to ensure the safe use of CBD products in conjunction with any current treatment plan. A healthcare provider can provide personalised advice based on your health history and current medications.

If you’re cleared to use CBD alongside your medication, regular monitoring by a healthcare provider is likely to be advised. This helps ensure that any negative interactions are identified quickly, and adjustments to dosages (either of the medication or the CBD) can be made as needed.

While CBD offers a range of potential benefits, its interactions with other medications should not be overlooked. Taking CBD safely and the well-being of users can be best ensured through informed decisions made in consultation with healthcare professionals. Always prioritise this professional guidance, particularly if you are taking other medications.

Different CBD consumption methods

The method of consumption can significantly influence both the experience and potential side effects of CBD. Understanding this can help you choose the right product for your needs and lifestyle, whether you’re taking CBD to help alleviate chronic pain symptoms or improve sleep disorders.

Here’s a look at some of the most popular ways to take CBD:

  • CBD teas: Consuming CBD in tea form is a gentle and relaxing method. The side effects are usually minimal, with the most common being a sense of calm and relaxation. However, as with any tea, those with sensitive stomachs might experience mild digestive discomfort. The soothing nature of CBD tea also makes it less likely to cause drowsiness unless specifically designed for sleep aid.
  • CBD vapes: Vaping CBD provides quick relief but can also bring about specific side effects like dry mouth or throat irritation. The inhalation process may also lead to mild headaches or dizziness, particularly for those new to vaping or with sensitive respiratory systems.
  • CBD oil: CBD oil taken sublingually (under the tongue) tends to have a more immediate effect. Common side effects can include dry mouth and mild drowsiness, especially with higher doses. Depending on the carrier oil used, some users might experience slight discomfort or irritation under the tongue.
  • CBD edibles: Edibles, like gummies or chocolates, offer a discreet and convenient way to consume CBD. Due to the higher concentrations often found in edibles, the side effects can be more pronounced, and they may include drowsiness, changes in appetite, or digestive issues. The effects also take longer to manifest due to the digestive process but tend to last longer.

The method of consumption influences how quickly CBD is absorbed into the bloodstream and metabolised by the human body. For instance, sublingual oils enter the bloodstream more quickly than edibles, which need to be digested. This means the onset and duration of side effects can vary based on the method used.

Whether you prefer teas, CBD oil, or edibles, understanding these differences can help you make an informed decision and enjoy the benefits of CBD with minimal discomfort.

Choose high-quality CBD products

Selecting high-quality products is key to help ensure CBD use is safe and beneficial. This minimises the risk of unwanted side effects and guarantees that you receive the full potential benefits of CBD.

When shopping, look for clear labelling that offers information about the CBD content, the type of CBD used (isolate, broad-spectrum, full-spectrum), the volume of the product, a list of ingredients, and usage instructions. On top of this, check the brand for reviews and see if they have a good reputation.

You should also check for third-party lab testing, which confirms the CBD and THC concentrations and ensures the product is free from harmful contaminants such as pesticides, heavy metals, and mould.

When determining the source of hemp used in particular CBD products, look for organically grown hemp and hemp grown in regulated jurisdictions adhering to strict quality controls.

Listen to your body

When incorporating CBD into your wellness routine for its potential health benefits, one of the most important things to do is listen to your body. Each individual’s reaction to CBD can be unique, so it is essential to pay attention to how your body responds to different doses and forms of CBD.

Attune to your body’s signals

Your body can provide valuable feedback about the effectiveness and appropriateness of CBD for your needs. For instance, if you experience enhanced relaxation and improved sleep after taking CBD tea, it’s a sign that your body is responding positively. Conversely, if you notice any discomfort, such as dizziness or digestive upset, after using a CBD product, this could indicate that you need to adjust the dosage or try a different consumption method.

Keep a CBD journal

Maintaining a consumption journal can be an effective way to track your experiences with CBD. Note down the type of CBD product used, the dosage, the time of consumption, and any effects you feel afterwards, including both positive impacts and any side effects. This record-keeping can help you understand your body’s responses and make more informed decisions about CBD usage.

Managing side effects

It’s important to remember that while side effects from CBD are possible, they are generally mild and manageable. If you experience side effects, consider reducing the dosage or experimenting with different methods of consumption.

Remember, a thoughtful and informed approach to CBD can significantly enhance its benefits and reduce the likelihood of any adverse effects.

Contact The CBD Flower Shop

We have spent many years sourcing a unique and premium range of CBD products you can buy confidently. We’re very transparent about our ranges, from our CBD tea flowers to our CBD gummies, so don’t hesitate to get in touch with us if you have a question about any of our products. We’re also proud to offer fast delivery, secure packaging, and excellent customer service.

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