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Warfarin (Part 2)

Posted Jul 10 2009 10:47pm
So, How to take warfarin?

The dose, will be decided by your doctor, and might be changed from time to time depending on your INR. My advice on this one: Stick to the dose the doctor prescribed you!

Let's say your dose of warfarin is 2mg, then you should take 2mg of warfarin (one 2mg tablet) everyday at the same time.

What if you missed the dose?

You should take it as soon as you remember. However, do not take the missed dose when it is closed to the next dose (for example, you remember it after 12 hours the time you suppose to take the warfarin). If it's already after 12 hours, just ignore it, and start with the next dose. And remember NOT to double the dose when you are taking the next dose.

Wherever you go, bring your medication, in sufficient supply, to make sure you won't miss any dose.

If you care about your family member, especially the kids, make sure you store the medication in a safe place, where only you can assess to. And to ensure your tablets in good quality, keep them away from moisture and heat (avoid sunlight and water).


If you are pregnant, or might be pregnant, or plan to pregnant; or, you are breastfeeding, please do not take warfarin. Talk to your doctor about it.

If you are having surgery, including dental surgery (extraction of tooth), please tell your doctor or dentist. They might want to ask you to stop taking warfarin before the surgery or procedure few days before.

Plus, if you are taking any other medications or traditional medicines (such as gingko biloba, ginseng, garlic oil, fish oil. St. John's wort, Dong Guai), please inform your doctor or pharmacist about it. There might be drug-drug or drug-food interaction and dosage adjustment might be needed. AND DO NOT start any medications or traditional medicines without first consulting your doctor and pharmacist!

Please tell your doctor if you are having any health problems, even if you think it is minor problem. They might be related to the warfarin therapy.

So, you know about bleeding is the main side effect of warfarin. How to detect it anyway?

Signs of bleeding:

If any of these signs appear, please contact your doctor immediately.

If you fall down, you need to inform your doctor also, to check for internal bleeding (you won't feel internal bleeding until it's too late).

Do not ever underestimate any mild signs and symptoms. They might be the tip of the iceberg.

Any advice to minimize the risk of bleeding? Yes:
How about diet?

Your normal daily diet should not have too much changes. Any changes in diet may affect the INR reading.

Just reduce the intake of vegetables and food which are rich in vitamin K, as it will counter the effect of warfarin.

Foods rich in vitamin K (generally):

Of course, you are not advised to stop taking them at all (except for alcohol, you can totally avoid it). You need them to provide you other nutrients.

My advice is to take them in small amount, and in fixed amount, everyday.

OK. That's all for now about warfarin. Thanks
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