Both are blood thinning medication , lovenox and coumadin but they work on different clotting factors .
Lovenox (Enoxaparin )is in a class of medications called low molecular weight heparins. It works by stopping the formation of substances that cause clots.It inhibits factor 10 a and 2 a . Lovenox may cause side effects like upset stomach ,fever ,irritation or burning at site of injection , bleeding , if the side effects are persistent ,then you may have to see the doctor . There is also a antidote of lovenox which is called protamine sulfate .
Coumadin works on factor related to prothrombin time , so to monitor its activity your doctor may want to check PT/INR . The antidote for this is vitamin K . The side effects with coumadin which can be seen are hives, rash , itching ,difficulty breathing or swallowing ,swelling of the face, throat, tongue, lips, or eyes ,hoarseness ,chest pain or pressure ,swelling of the hands, feet, ankles, legs , infection ,nausea ,vomiting ,diarrhea. Rash also can be seen . So you can always see the doctor if you get side effects .
Coumadin can lead to bleeding if the person has kidney disease ,so then the doctor may adjust renal dosing of coumadin . He will get a baseline bun , serum creatinine , GFR and then will re test it after 3-4 weeks .
As you mentioned that your kidneys are fine , so at present there should be no concerns but renal function should be monitored at frequent intervals .
Feel free to ask further questions if any.
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