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is cbd a blood thinner

Broad spectrum CBD, or full spectrum CBD oil in particular, may be a useful tool in preventing thrombosis, or the formation of blood clots. A study on the anticoagulant effects of cannabis found the cannabinoids tetrahydrocannabinol (THC) and cannabinol (CBN) to be effective anti-thrombotics, doubling the amount of time it took for blood clots to form in obese and lean rat test subjects compared to the control group.

Although CBD oil has been found to be generally well-tolerated and without any significant side effects in studies , it can interact negatively with some medications. Often referred to as the ‘grapefruit effect,’ CBD oil is one of a number of natural substances that can slow down systems the body uses to metabolize and break down toxins.

Effects of CBD on Blood Clotting

With so many varieties of CBD oil available to you, how do you know where to start? If you’re looking for a safe CBD oil to combine with blood thinners, or are turning to CBD oil as a preventative measure against blood clots, there are a few things to consider to ensure you’re making the smartest and safest choice possible.

CBD oil can aid the circulatory system by dilating blood vessels. This allows the blood to flow quicker, and in turn, can make the occurrence of blood clots less likely. A 2017 study found that just a single dose of CBD significantly reduced the blood pressure of subjects both at rest and in stressful situations.

After you have chosen your preferred method for CBD administration, look for a high quality CBD product that has been organically grown, sustainably sourced, and third-party lab tested. Reading the lab reports (called Certificates of Analysis) will ensure the product you purchase is in fact the safest CBD oil to take with blood thinners. A Certificate of Analysis should tell you if the CBD product you have contains herbicides, pesticides, heavy metals, or chemical additives.

Have you heard of the grapefruit test? Many prescription drugs will include grapefruit warnings on the label, advising against consuming the citrus fruit while taking medication. Many medications are broken down in the liver and small intestine by a group of proteins called cytochrome P450 enzymes (CYPs). This process is what delivers a medication’s benefits to the intended target.

Little research studying interactions between CBD and common thyroid hormone replacement and anti-thyroid medications currently exists. Patients taking thyroid medication who want to try CBD should consult with their physician.

CBD interaction with drugs & medication

Further, a 1993 study conducted by pharmacology researchers at the University of California, San Francisco, and published in the journal Biochemical Pharmacology, discovered that CBD, much like grapefruit, disrupts the normal function of cytochrome P450 enzymes in mice. The study postulated that while the blockage could allow patients to take lower doses of their prescriptions, it could also cause a toxic buildup of chemicals in the body. Since this study’s publication, several scientific and medical journals have published evidence of the grapefruit-like effects of CBD in humans.

More research is needed on CBD’s interaction with diabetes. Patients taking metformin should talk to their doctor about whether CBD is right for them.

These drug classifications include a large percentage of existing prescriptions, such as benzodiazepines, antihistamines, haloperidol, antiretrovirals, statins, cyclosporine, sildenafil, warfarin, and other drugs metabolized by CYP3A4 and CYP2D6.