Argatroban and Heparin interaction

Argatroban and Heparin: the Argatroban prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Argatroban label · effective 2026-05-03

Moderate

Heparin: Allow sufficient time for heparin’s effect on activated partial thromboplastin time (aPTT) to decrease before initiating Argatroban Injection therapy.

Drug interactionsnames HeparinView label on DailyMed
Moderate

Heparin If argatroban is to be initiated after cessation of heparin therapy, allow sufficient time for heparin’s effect on the aPTT to decrease prior to initiation of argatroban therapy.

Drug interactionsnames HeparinView label on DailyMed
Moderate

Concomitant use of argatroban with antiplatelet agents, thrombolytics, and other anticoagulants may increase the risk of bleeding.

Warnings and precautionsby drug classView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.