Tangerine - Vincasar (Vincristine) Interaction

Interaction Details

Vincristine is classified as belonging to the following category: Cytochrome P450 3A4 (Cyp3A4) Substrates

In vitro, tangeretin, a constituent of tangerine, induces a 52% increase in the metabolism of midazolam by cytochrome P450 3A4 (CYP3A4). This suggests that tangeretin may stimulate CYP3A4 activity. However, in humans, drinking tangerine juice 200 mL slightly delayed the absorption, but did not affect the metabolism, of midazolam, a CYP3A4 substrate. Theoretically, tangerine juice might increase CYP3A4 activity and decrease levels of drugs metabolized by this enzyme. However, this effect is unlikely.
Some drugs metabolized by CYP3A4 include amitriptyline (Elavil), amiodarone (Cordarone), citalopram (Celexa), felodipine (Plendil), lansoprazole (Prevacid), ondansetron (Zofran), prednisone (Deltasone, Orasone), sertraline (Zoloft), sibutramine (Meridia), and many others.

Interaction Rating

Likelihood of Occurrence

Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

References

• Backman, J. T., Maenpaa, J., Belle, D. J., Wrighton, S. A., Kivisto, K. T., and Neuvonen, P. J. Lack of correlation between in vitro and in vivo studies on the effects of tangeretin and tangerine juice on midazolam hydroxylation. Clin Pharmacol Ther 2000;

Vincristine Overview

• Vincristine is used in combination with other chemotherapy drugs to treat certain types of leukemia (cancer of the white blood cells), including acute myeloid leukemia (AML, ANLL) and acute lymphoblastic leukemia (ALL), Hodgkin's lymphoma (Hodgkin's disease), and non-Hodgkin's lymphoma (types of cancer that begin in a type of white blood cells that normally fights infection). Vincristine is also used in combination with other chemotherapy drugs to treat Wilms tumor (a type of kidney cancer that occurs in children), neuroblastoma (a cancer that begins in nerve cells and occurs mainly in children), and rhabdomyosarcoma (cancer that forms in muscles in children). Vincristine is in a class of medications called vinca alkaloids. It works by slowing or stopping the growth of cancer cells in your body.

Tangerine - More Interactions

Tangerine interacts with 602 drugs

Interaction Rating Key

These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.