Does CBD interfere with medications?

CBD can interfere with some medications. Read more below to learn which medications you should avoid taking while also taking CBD products.


Taking warfarin and CBD together may increase the risk of bleeding. Even minor changes to the body’s equilibrium can increase the risk of bleeding and thrombosis due to the drug’s narrow therapeutic window.


Theophylline is used to treat asthma. By smoking, the increased CBD levels may speed up the metabolic clearance of this drug. (Please note: Mullaney’s does not recommend smoking.)


This medication is used to treat seizures. While CBD can be used in conjunction, do so only under the supervision of a doctor. CBD can increase the side effect of sedation in clobazam.


Another seizure medication, CBD can increase liver enzymes when used in conjunction with valproate. This may cause liver injury.