Drug General Information (ID: DDI2WTHYD3)
  Drug Name Anisindione Drug Info Ceftriaxone Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Anticoagulants Antibiotics
  Structure

 Mechanism of Anisindione-Ceftriaxone Interaction (Severity Level: Moderate)
     Increased risk of bleeding Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Anisindione Ceftriaxone
      Mechanism Risk of bleeding
Anticoagulant 
Risk of bleeding
Inhibit the growth of vitamin K-producing intestinal bacteria, inhibit the production of vitamin K-dependent coagulation factors via the methylsulfotetrazole side chain, and/or inhibit platelet activity 
      Key Mechanism Factor 1
Factor Name Bleeding
Factor Description Patients may be at risk for bleeding when the outcome of a disease or disease treatment confounds the standard mechanisms for maintaining hemostasis. Signs or symptoms of abnormal bleeding include: bleeding that takes a long time to stop (including nosebleeds, bleeding gums, bleeding from cuts and abrasions, and menstrual bleeding); severe unexplained bruising, or bruising that becomes larger; blood in the urine or stool, etc.
      Mechanism Description
  • Increased risk of bleeding by the combination of Anisindione and Ceftriaxone 

Recommended Action
      Management Prothrombin time and INR should be monitored and the patient closely observed for signs of bleeding. The anticoagulant dose may be adjusted as indicated. Patients should be advised to notify their physicians if they experience any signs or symptoms that may indicate excessive anticoagulation, such as unusual or prolonged bleeding, bruising, coffee ground emesis, change in stool or urine color, headache, dizziness, or weakness.

References
1 Product Information. Suprax (cefixime). Lupin Pharmaceuticals Inc, Baltimore, MD.
2 Wood T, Johnson K, Naylor S, Weinshilboum R "Cefazolin administration and 2-methyl-1,3,4-thiadiazole-5-thiol in humantissue: possible relationship to hypoprothrombinemia." Drug Metab Dispos 30 (2002): 1123-1128
3 Natelson EA, Brown CH, 3d Bradshaw MW, Alfrey CP, Jr Williams TW, Jr "Influence of cephalosporin antibiotics on blood coagulation and platelet function." Antimicrob Agents Chemother 9 (1976): 91-3