Diltiazem and Trabectedin interaction
Diltiazem and Trabectedin: the Trabectedin prescribing label flags this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Trabectedin (EVDI) label · effective 2026-06-29
CYP3A inhibitors: Avoid concomitant strong CYP3A inhibitors ( 7.1 )
Table 5: Drug Interactions with EVDI Strong CYP3A Inhibitors Prevention or Management Avoid concomitant use of strong CYP3A inhibitors in patients taking EVDI.
If concomitant use of a strong CYP3A inhibitor for short-term use (i.e., less than 14 days) cannot be avoided, administer the strong CYP3A inhibitor 1 week after the EVDI infusion, and discontinue it the day prior to the next EVDI infusion Mechanism and Clinical Effect(s) Concomitant administration of trabectedin with ketoconazole, a strong CYP3A inhibitor, increased…
Drug Interactions Effect of Strong CYP3A Inhibitors on Trabectedin Coadministration of multiple doses of ketoconazole (200 mg twice daily for 7.5 days) with a single dose of EVDI (0.58 mg/m 2 ) on day 1 increased trabectedin dose-normalized AUC by 66% and C max by 22% compared to a single EVDI dose (1.3 mg/m 2 ) given alone.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.