Imatinib and Simvastatin interaction
Imatinib and Simvastatin: both prescribing labels flag 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 Simvastatin (ZOCOR) label · effective 2025-03-28
ZOCOR is contraindicated in the following conditions: Concomitant use of strong CYP3A4 inhibitors (select azole anti-fungals, macrolide antibiotics, anti-viral medications, and nefazodone) [see Drug Interactions (7.1) ] .
Concomitant use of strong CYP3A4 inhibitors (select azole anti-fungals, macrolide antibiotics, anti-viral medications, and nefazodone) ( 4 , 7.1 )
Steps to Prevent or Reduce the Risk of Myopathy and Rhabdomyolysis The concomitant use of strong CYP3A4 inhibitors with ZOCOR is contraindicated.
Intervention: Concomitant use of strong CYP3A4 inhibitors with ZOCOR is contraindicated [see Contraindications (4) ] .
If treatment with a CYP3A4 inhibitor is unavoidable, suspend ZOCOR during the course of strong CYP3A4 inhibitor treatment.
From the Imatinib (Gleevec) label · effective 2026-07-13
Interactions With Drugs Metabolized by CYP3A4 Gleevec will increase plasma concentration of CYP3A4 metabolized drugs (e.g., triazolo-benzodiazepines, dihydropyridine calcium channel blockers, certain HMG-CoA reductase inhibitors, etc.). Use caution when administering Gleevec with CYP3A4 substrates that have a narrow therapeutic window.
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.