Drug General Information (ID: DDI05YISVU)
  Drug Name Carboplatin Drug Info Anisindione Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antineoplastics Anticoagulants
  Structure

 Mechanism of Carboplatin-Anisindione Interaction (Severity Level: Moderate)
     Competitive binding of plasma proteins Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Carboplatin Anisindione
      Mechanism Competition for plasma protein binding sites Competition for plasma protein binding sites
      Key Mechanism Factor 1
Factor Name Plasma protein binding
Factor Description Plasma protein binding refers to the degree of binding of a drug to proteins in the blood, and the lower the degree of binding, the more efficiently the drug can cross cell membranes or diffuse. Plasma protein binding alters the distribution and therapeutic characteristics of the drugs.
      Mechanism Description
  • Increased plasma concentration of Anisindione and Carboplatin due to competitive binding of plasma proteins

Recommended Action
      Management Based on these observations, appropriate monitoring for excessive hypoprothrombinemia is recommended early on and later in time course following the addition of etoposide and carboplatin to a stabilized regimen of warfarin. The same precaution may be applicable during therapy with other oral anticoagulants, since these agents are all highly protein-bound in the plasma. Patients should be advised to promptly report any signs of bleeding to their physician, including pain, swelling, headache, dizziness, weakness, prolonged bleeding from cuts, increased menstrual flow, vaginal bleeding, nosebleeds, bleeding of gums from brushing, unusual bleeding or bruising, red or brown urine, or red or black stools.

References
1 Le AT, Hasson NK, Lum BL "Enhancement of warfarin response in a patient receiving etoposide and carboplatin chemotherapy." Ann Pharmacother 31 (1997): 1006-8. [PMID: 9296241]
2 Seifter EJ, Brooks BJ, Urba WJ "Possible interactions between warfarin and antineoplastic drugs." Cancer Treat Rep 69 (1985): 244-5. [PMID: 3971397]