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does cbd oil interact with any medications

View interaction reports for cannabis and the medicines listed below.

Some mixtures of medications can lead to serious and even fatal consequences.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Further information

A total of 380 drugs are known to interact with cannabis categorized as 26 major, 354 moderate, and 0 minor interactions.

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When applied to the skin: There isn’t enough reliable information to know if cannabidiol is safe or what the side effects might be.

Some medications changed by the liver include nonsteroidal anti-inflammatory drugs (NSAIDs) such as diclofenac (Cataflam, Voltaren), ibuprofen (Motrin), meloxicam (Mobic), piroxicam (Feldene), and celecoxib (Celebrex); amitriptyline (Elavil); warfarin (Coumadin); glipizide (Glucotrol); losartan (Cozaar); and others. Medications changed by the liver (Cytochrome P450 2D6 (CYP2D6) substrates) Some medications are changed and broken down by the liver. Cannabidiol might decrease how quickly the liver breaks down some medications. In theory, using cannabidiol along with some medications that are broken down by the liver might increase the effects and side effects of some medications. Before using cannabidiol, talk to your healthcare provider if you take any medications that are changed by the liver.

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Cannabidiol is a chemical in the Cannabis sativa plant, also known as marijuana or hemp. Over 80 chemicals, known as cannabinoids, have been identified in the Cannabis sativa plant. While delta-9-tetrahydrocannabinol (THC) is the major active ingredient in marijuana, cannabidiol is also obtained from hemp, which contains only very small amounts of THC.

Children: A prescription cannabidiol product (Epidiolex) is POSSIBLY SAFE when taken by mouth in doses up to 25 mg/kg daily. This product is approved for use in certain children 1 year of age and older.

Some medications changed by the liver include alprazolam (Xanax), amlodipine (Norvasc), clarithromycin (Biaxin), cyclosporine (Sandimmune), erythromycin, lovastatin (Mevacor), ketoconazole (Nizoral), itraconazole (Sporanox), fexofenadine (Allegra), triazolam (Halcion), verapamil (Calan, Isoptin) and many others. Medications changed by the liver (Cytochrome P450 3A5 (CYP3A5) substrates) Some medications are changed and broken down by the liver. Cannabidiol might decrease how quickly the liver breaks down some medications. In theory, using cannabidiol along with some medications that are broken down by the liver might increase the effects and side effects of some medications. Before using cannabidiol, talk to your healthcare provider if you take any medications that are changed by the liver.

As mentioned, and contrary to popular belief and anecdotal evidence, CBD is not a biologically inert compound. Rather, CBD has a complex pharmacokinetic and pharmacodynamic profile similar to any other medication, and has the potential to interact with other medications and medical conditions.

How successful it is in its competition with other medicines depends on a few factors, but mostly the amount of CBD that enters into the bloodstream. If it’s not very much, it will have very little to no noticeable effect on the CYP activity and the majority of the medicine will be metabolized. On the other hand, if a large dose of CBD is taken, it will bind to a lot more of the site of enzyme activity and leave a lot more of the other medicine to not be metabolized.

This, along with the rise in the popularity of the medical and complimentary use of CBD, researchers are also starting to investigate drug interactions with CBD more directly.

CBD and Drug Interactions in Studies

However, this basal metabolic rate is very different to metabolism – the way in which substances such as different types of food are broken down and used by the body – with much of this process happening in the gut and the liver in what is known as the ‘first-pass effect,’ or ‘first-pass metabolism’.

Before we take a look at how CBD interacts with medications, first we need to understand how the body’s metabolism works in general, the systems involved in CBD metabolism, how CBD is metabolized and how CBD affects something called the Cytochrome P-450 system.

Cannabidiol, or CBD, is one of over a 100 different types of a specific kind of compound called phytocannabinoids found in the Cannabis sativa plant.

In another study investigating the interactions between CBD and commonly used anti-epileptic drugs, concluded that, although serum levels of the drugs topiramate, rufinamide, and N‐desmethylclobazam were found when use in conjunction with and increased CBD dosages. However, all changes were within the accepted therapeutic range but did underscore the importance of monitoring serum AED levels and LFTs during treatment with CBD.