Cannabidiol (CBD) is a non-psychoactive component found in the cannabis plant. Its use is gaining popularity due to the numerous health benefits it offers. However, certain precautions must be taken when using CBD, depending on other medications or treatments you are currently taking. In this article, we will discuss the main drug interactions with CBD and which medications should not be taken concurrently.
Main drug interactions with CBD
Some studies have shown that CBD can interact with certain medications, potentially leading to unwanted side effects. These interactions may be related to how CBD affects the immune system, the stomach, and other internal organs, as well as how it affects blood circulation
In all cases, it is essential to consult a specialist before introducing CBD into your therapeutic regimen if you are already taking another medication to avoid any negative interactions.
- Antidepressants: Research shows that CBD can also increase serotonin levels, which may enhance the effect of antidepressants.
- Antihypertensives: CBD has a hypotensive effect, meaning it can lower blood pressure. If you are taking antihypertensive medications—such as diuretics or angiotensin-converting enzyme (ACE) inhibitors—CBD could potentially enhance their effects.
- Sedatives: CBD has also been found to have a sedative effect in some people, especially at high doses. If you are taking sedative medications such as benzodiazepines, it is important to carefully monitor your dosage and be aware of potential interactions with CBD.
Medications to avoid when using CBD
According to available research, here are some of the types of medications that may present interaction problems with CBD:
- Drugs metabolized by the liver: Some studies suggest that CBD may inhibit certain liver enzymes responsible for drug breakdown (CYP450). This means that if you are taking medications that are also metabolized by these enzymes, using CBD concurrently could disrupt this breakdown, thus increasing the drug concentration in your body.
- Anticoagulants: The anticoagulant effects of CBD could enhance those of anticoagulant drugs such as warfarin, increasing the risk of bleeding.
- Antiepileptics: CBD is used to treat epilepsy in the form of Epidiolex®, an FDA-approved medication. However, CBD has been shown to interact with certain antiepileptic drugs, such as clobazam, and may increase blood levels of this drug. Patients should therefore consult their doctor before combining CBD with these treatments.
Medications incompatible with the endocannabinoid system
The endocannabinoid system (ECS) is a network of receptors in our body that plays a central role in regulating essential bodily functions. CBD works in part by influencing the ECS, but some medications can also interfere with it
- Rimonabant: This medication was developed to treat obesity and smoking, but its use was discontinued due to side effects such as anxiety and depression. It works by blocking CB1 receptors in the endocannabinoid system (ECS), which means it could potentially interact with CBD.
- Oleoylethanolamine (OEA): This is a naturally occurring compound produced by our bodies that affects the endocannabinoid system (ECS). Medications are currently being developed to manipulate OEA levels, with the aim of treating disorders such as anorexia and depression. In this case as well, there could be an interaction with CBD.
Medical consultation and necessary precautions
As previously stated, when using CBD alongside other medications, it's always best to consult a healthcare professional to understand potential interactions between the substances and adjust your dosage accordingly. It's also recommended to start with low doses of CBD and gradually increase them if necessary, while closely monitoring the effects on your body.
Editor-in-Chief specializing in CBD
Julien, born on July 17, 1978, in the Paris region, is a prominent writer and expert in the field of CBD products. Following his studies, Julien developed a passion for natural remedies, including CBD. In 2022, he joined the CBD.fr team as an expert and regular contributor. Thanks to his scientific expertise and clear writing style, Julien helps demystify the complexities of CBD, while highlighting its benefits and potential applications through his articles and conference presentations.
