Drug General Information (ID: DDI3F4VZPC)
  Drug Name Colesevelam Drug Info Anisindione Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Bile Acid Sequestrants Anticoagulants
  Structure

 Mechanism of Colesevelam-Anisindione Interaction (Severity Level: Moderate)
     Altered Fat-soluble drugs absorption Click to Show/Hide Mechanism Graph
      Drug Name Colesevelam Anisindione
      Mechanism Decrease fat-soluble agent absorption Fat-soluble agent (vitamin K)
      Key Mechanism Factor 1
Factor Name Pharmacokinetic
Factor Description Alters the absorption of the drug, leading to changes in the plasma concentration of the drug and affecting the pharmacological effects.
      Mechanism Description
  • Decreased absorption of Anisindione caused by Colesevelam 

Recommended Action
      Management Patients receiving warfarin and other oral anticoagulants should have INR monitored frequently during initiation of colesevelam, then periodically thereafter.

References
1 Canadian Pharmacists Association.
2 Product Information. Welchol (colesevelam) Daiichi Sankyo, Inc., Parsippany, NJ.