Cannabidiol is currently being studied for this exact reason. When you take a medication, your body must metabolize, or break down the compounds. An enzyme called CYP450, found in the human body, is responsible for transforming foreign substances in the body to be eliminated from the body through the liver in an easy process.
Some substances can cause an interaction with the CYP450, like the common ‘grapefruit warnings’ found on many medications. By changing the rate of metabolism, CBD may create effects synergistically that were not originally intended by the medication’s original design and purpose.
If you are taking CBD with any other medications, it’s important to discuss the topic and regimen with your healthcare provider. Most doctors have the ability to perform pharmaceutical tests to ensure there are no negative interaction effects, so you may still safely take CBD with medications having the grapefruit warning, but only with doctor supervision & guidance.