Table 1.

Enzymes Inhibited by THC and CBD

SubstanceEnzymes Inhibited
THCCYP3A4, CYP2D6
CBDCYP1A1, CYP1A2, CYP1B1, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP3A4, UGT1A9, and UGT2B7

  • Abbreviations: THC, tetrahydrocannabinol; CBD, cannabidiol.