https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/209939s015,209940s015,219104s001lbl.pdf
Letermovir is a substrate of organic anion-transporting polypeptide 1B1/3 (OATP1B1/3) and P-glycoprotein (P-gp) transporters and UDP-glucuronosyltransferase 1A1/3 (UGT1A1/3) enzyme