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I am unable to find a definite answer for you. But since warfarin is metabolized by a common P450 enzyme, numerous drugs may interact with it, even if there is no hardcore evidence available. But this shouldn't stop you from taking warfarin OR xyzal.

When adding a new medication to your regimen ON TOP OF your current warfarin therapy, you must always consult with your doctor or a health care professional. In this case, routine manner would be to monitor your INR level to make sure your warfarin therapy has not been affected.

** However, according to a study with 5 men over the age of 65+ that took both xyzal and warfarin for a 14 day period, all 5 men experienced a prolonged prothrombin time. In other words, warfarin levels are LOWER than normal (that is, w/o xyzal), and therefore you are clotting a bit more readily than if you were to NOT take xyzal.

But you may be different. Again, I would check with a doctor. He or she may not see an interaction but only a nicely monitored INR and prothrombin time will prove it.

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Wiki User

15y ago

What else can I help you with?