Drug General Information (ID: DDIHSWEB3X)
Drug Name			Dipyridamole		Drug Info		Heparin		Drug Info
Drug Type		Small molecule				Small molecule
Therapeutic Class		Vasodilator Agents				Anticoagulants
Structure

Mechanism of Dipyridamole-Heparin Interaction (Severity Level: Minor)
Increased risk of bleeding Click to Show/Hide Mechanism Graph
Drug Name		Dipyridamole				Heparin
Mechanism		Risk of bleeding Antiplatelet				Risk of bleeding Anticoagulant
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 Dipyridamole and Heparin

References
1	Product Information. Heparin Sodium (heparin). Lilly, Eli and Company, Indianapolis, IN.