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Coumadin and Urokinase

Determining the interaction of Coumadin and Urokinase and the possibility of their joint administration.

Check result:
Coumadin <> Urokinase
Relevance: 01.06.2022 Reviewer: Shkutko P.M., M.D., in

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer:

Using urokinase together with warfarin can cause you to bleed more easily. You may need a dose adjustment in addition to testing of your prothrombin time or International Normalized Ratio (INR). Call your doctor promptly if you have any unusual bleeding or bruising, vomiting, blood in your urine or stools, headache, dizziness, or weakness. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Professional:

MONITOR CLOSELY: Although warfarin is commonly administered for the prevention of embolism in certain patients following thrombolytic therapy (e.g., myocardial infarction), oral anticoagulants may increase the risk of serious bleeding when administered before, during, or after fibrinolytic agents. Cholesterol embolization syndrome has also been reported rarely with thrombolytics and anticoagulants, when used alone or in combination.

MANAGEMENT: Alteplase is contraindicated in patients with acute ischemic stroke who are currently taking oral anticoagulants and have an INR greater than 1.7. For other indications, risk versus benefit should be carefully weighed if patients who are currently taking oral anticoagulants (INR 2 to 3) are to receive thrombolytic therapy and patient selection should adhere to currently recommended criteria. Patients should be closely monitored for signs of bleeding, especially at arterial puncture sites. If oral anticoagulants are initiated following thrombolytic therapy, the dosage should be adjusted as appropriate to maintain therapeutic INR values. Patients should be closely monitored for clinical and laboratory signs of bleeding.

References
  • Arora RR, Magun AM, Grossman M, Katz J "Cholesterol embolization syndrome after intravenous tissue plasminogen activator for acute myocardial infarction." Am Heart J 126 (1993): 225-8
  • "Product Information. Retavase (reteplase)." Boehringer Mannheim, Gaithersburg, MD.
  • "Product Information. Streptase (streptokinase)." Astra USA, Westborough, MA.
  • "Product Information. Abbokinase (urokinase)." Abbott Pharmaceutical, Abbott Park, IL.
  • Julian DG "A comparison of aspirin and anticoagulation following thrombolysis for myocardial infarction (the AFTER study): a multicentre unblinded randomised clinical trial." BMJ 313 (1996): 1429-31
  • "Product Information. TNKase (tenecteplase)" Genentech, South San Francisco, CA.
  • Gupta BK, Spinowitz BS, Charytan C, Wahl SJ "Cholesterol crystal embolization-associated renal failure after therapy with recombinant tissue-type plasminogen activator." Am J Kidney Dis 21 (1993): 659-62
  • Hirsch J, Dalen J, Guyatt G, American College of Chest Physicians "The sixth (2000) ACCP guidelines for antithrombotic therapy for prevention and treatment of thrombosis. American College of Physicians." Chest 119(1 Suppl) (2001): 1S-2S
  • Harder S, Klinkhardt U "Thrombolytics: drug interactions of clinical significance." Drug Saf 23 (2000): 391-9
  • "Product Information. Activase (alteplase)." Genentech, South San Francisco, CA.
Coumadin

Generic Name: warfarin

Brand name: Coumadin, Jantoven

Synonyms: n.a.

Urokinase

Generic Name: urokinase

Brand name: Kinlytic, Abbokinase, Abbokinase Open-Cath

Synonyms: n.a.

In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.

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