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Doctor insights on: How Long Does Warfarin Take To Reach Maximum Effect

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How long does it take warfarin to work?

How long does it take warfarin to work?

At least a few days: It can take up to 5 or more days for the medication to reach therapeutic effect. Sensitivity to the medication is based on genetic factors, as well as interaction with diet and other medications. Other newer anticoagulants may work within hours. ...Read more

Warfarin (Definition)

Warfarin is a medication used to thin the blood and to prevent or treat people with blood clots. It requires frequent blood ...Read more


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How long does it generally take for warfarin to leave the body once you stop taking it?

How long does it generally take for warfarin to leave the body once you stop taking it?

Warfarin: The duration of time it takes for warfarin to be eliminated from your body depends on a few factors. It depends on the dose that you were previously taking, it depends on the pro time level at the time that you stop warfarin, and it depends on how much vitamin k is in your diet. That being said, usually we estimate 5 to 7 days for reduction of the effect of warfarin down to a level of baseline. ...Read more

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How long should I take warfarin tablets post abortion?

How long should I take warfarin tablets post abortion?

Discuss with doctor: There are too many factor to discuss here. You need to discuss this with your doctor. ...Read more

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How long does your blood level take to go back to normal after taking warfarin?

How long does your blood level take to go back to normal after taking warfarin?

Three to five days: In general, the effects of warfarin (coumadin) last for three to five days after stopping the medication. ...Read more

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I take 7mg warfarin 1 time everyday. If I run out of medicine what can I take to replace warfarin? How long does it take for my INR to drop under 2.0?

I take 7mg warfarin 1 time everyday. If I run out of medicine what can I take to replace warfarin? How long does it take for my INR to drop under 2.0?

Week: Depends on the reads on you take warfarin. If it is nor for mechanical valve you can ask to be changed to the newer anticoagulants like xaralto, /pradaxa/variety ...Read more

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I take coumadin (warfarin). And want a tattoo. Should I stop taking the coumadin (warfarin)? And how long before the tattoo?

I take coumadin (warfarin). And want a tattoo. Should I stop taking the coumadin (warfarin)? And how long before the tattoo?

Risk of stroke!: If you have a mechanical heart valve, you need to stay on anti-coagulation to prevent blood clots forming that could cause a stroke. Don't stop Coumadin (warfarin) without talking to your doctor. ...Read more

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How long should I take Coumadin (warfarin) for a DVT of unknown origin? Never had one in the past. Current INR is 2.3. Been taking it for 60 days.

How long should I take Coumadin (warfarin) for a DVT of unknown origin? Never had one in the past. Current INR is 2.3. Been taking it for 60 days.

At least 6 months: According the american college of chest physicians an unprovoked [ no clear precipitating event ] should be treated for 6 months.[ or 180 days]. Further work up may uncover reasons to treat longer. Please understand that too short of treatment increases the risks for additional blood clots. ...Read more

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How long does it take swelling in leg to go down after warfarin started for a dvt?

How long does it take swelling in leg to go down after warfarin started for a dvt?

Swelling: As the dvt starts to resolve or collateral veins take over the function, the swelling will improve
Anticoagulants do not dissolve the clot ...Read more

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How long could it take swelling in leg to go down after DVT diagnosis and warfarin started?

How long could it take swelling in leg to go down after DVT diagnosis and warfarin started?

Several months: After starting warfarin the blood clot can no longer grow. The body will start to break down the clot within days. It takes months to have the clot reabsorbed or for the process to make an opening through the clot so blood can get through again. Swelling will be visibly less in a few weeks but it could be 6 months before the leg is back to normal. Occasionally, the swelling persists indefinitely. ...Read more

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How long does it take for heparin and then Coumadin (warfarin) to dissolve clots that are found in the leg and also in both lungs.

How long does it take for heparin and then Coumadin (warfarin) to dissolve clots that are found in the leg and also in both lungs.

Warfarin: Actually the warfarin doesn't dissolve the clots it prevents new ones from forming. The bodies own thrombolytic system takes care of the existing clots. This takes a variable time between people it can take days to weeks however to be complete. ...Read more

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After a pulmonary embolism how long do I need to take coumadin (warfarin)?

After a pulmonary embolism how long do I need to take coumadin (warfarin)?

It depends: We always treat patients with DVT and pulmonary embolus for a minimum of 6 months and usually 12. Work-up for hypercoagulability (predisposition for abnormal blood clotting) is always performed, usually after the year of Coumadin (warfarin) treatment. If you have a hypercoagulable state as determined by blood testing, you may need anti coagulation for life. ...Read more

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I had heart surgery (CABG+MVR) in Oct 2013.Taking warfarin. Current INR 2.1.How long should I monitor INR, take warfarin and avoid green leafy vegs?

I had heart surgery (CABG+MVR) in Oct 2013.Taking warfarin. Current INR 2.1.How long should I monitor INR, take warfarin and avoid green leafy vegs?

MVR: Mvr could be repair or replacement
that's why we try to avoid abbreviations
if repair, may be a few months.
Depending on replacement choice could be 3 months or if a mechanical valve could be for life! ...Read more

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Can I take with warfarin?

Can I take with warfarin?

More information?: As dr. Ho said, more information is needed before anyone can answer your question. ...Read more

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Why must I take my warfarin at an exact, specific time?

Why must I take my warfarin at an exact, specific time?

Easier to control: It doesn't have to be at an exact time, but, warfarin is easier to regulate if taken at a consistent time. I prefer at dinner time or thereabouts, so that when dosage changes are recommended, you won't have already taken that day's dose. ...Read more

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Any medication to last long in bed for sex I'm on warfarin?

Any medication to last long in bed for sex I'm on warfarin?

Premature ejaculate?: I assume you mean that you ejaculate too quickly and would like to extend the time you spend in intercourse. You could try masturbating before sex with your partner, wearing a condom, or there are several otc products that contain a local anesthetic in cream to numb the penis so that you do not ejaculate quite as rapidly. As a last resort there is a medication called depoxitine. ...Read more

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I take warfarin. Could that be what is causing my facial sores?

I take warfarin. Could that be what is causing my facial sores?

Possible: Warfarin can cause skin lesions. If you think this is it, discuss with your pcp or Coumadin (warfarin) management doctor or perhaps a dermatologist. Be careful! Apparently you must have the Coumadin (warfarin) or you would not be on it. Get seen and get help. ...Read more

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How long after you stop taking warfarin does it stay in your system?

How long after you stop taking warfarin does it stay in your system?

3 days...: Warfarin inhibits the liver production of certain clotting factors. These have variable "half-lives" or life span. For all of them to be regenerated generally takes about three days. ...Read more

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Where can I purchase 5-mthf, and how much should I take, I'm also on warfarin?

Go see your doctor: Because you're taking warfarin, you need to tell your doctor everything you're taking, whether prescription or over-the-counter as many drugs can interact w/warfarin & increase your risk for bleeding or clotting. You didn't mention why you want l-5-methyltetrahydrofolate but be careful of internet brands. Stick w/medical food quality brands. ...Read more

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How long does the effect of warfarin stay in your system once you get off of the medicine?

2 to 7 days: Wafarin response is very variable. Typically, within 2 to 3 days there is a significant reductiion in the effect and within about 5 days anticoagulation effect has largely resolved. There are antidotes available and diet will have an impact. ...Read more

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Can I take co q 10 with coumadin (warfarin)?

Yes: It does not have an interaction with coumadin (warfarin), (warfarin) but regular checks of your inr will be important to ensure therapeutic dose of coumadin (warfarin). ...Read more

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Tips on how to cook for someone who takes coumadin (warfarin)?

Tips on how to cook for someone who takes coumadin (warfarin)?

Regularly: The important diet tip in patients taking Coumadin (warfarin) is that the diet, including consumption of green vegetables and alcohol has to be constant (the same) from one week to the next.
That will prevent swings in INR (test that measures efficacy and toxicity of coumadin)
Also be careful with medicines over the counter, vitamins and herbal supplements ...Read more

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What things should I avoid eating/drinking when I take warfarin?

Leafy green vegetable: Green vegetables, especially leafy salads, significant alcohol intake and vitamins containing vit k. ...Read more

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Can I take vitex with warfarin?

Unknown: Vitex is chasteberry extract. Here's all that's known scientifically : http://nccam. Nih. Gov/health/chasteberry. The issue with warfarin is usually that an herbal contains vitamin k (vitex doesn't) or interferes with warfarin metabolism (it's not known to) - so I suspect vitex is okay, but it apparently has never been studied. To be safe, let your warfarin prescriber know you're using it. ...Read more

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Is it safe to take kratom while on warfarin?

Although there is no: Specific suggestion that Vitamin K or liver metabolic functions will be altered by kratom, its alkaloid and opiate effects could change your metabolism or gut motility. Either would affect warfarin efficacy. Like any other potential interaction with warfarin if it is done routinely the warfarin dosing can be adjusted to compensate. Irregular use could lead to higher risk. ...Read more

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Can you take claratin and Coumadin (warfarin) with no issues?

Can you take claratin and Coumadin (warfarin) with no issues?

DrugDrug interaction: In general, there are no issues w/taking Claritin & Coumadin (warfarin) together (http://www. Drugs. Com/interactions-check. Php? Drug_list=1486-898, 2311-1529). However, your vitamin k diet can affect your Coumadin (warfarin) dose. It's always best to tell your doctor & pharmacist everything you're taking, whether prescription or otc, especially in the case of Coumadin (warfarin) which requires constant monitoring to achieve inr goal. ...Read more

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Can you safely take caltrate 600mg while on coumadin (warfarin)?

Yes: Generally the answer is yes. Although not as important with coumadin, (warfarin) many medications should not be taken with calcium supplements, given the risk of the calcium binding the medicine and not allowing it to be absorbed. The most importat thing to remember about Coumadin (warfarin) is consistency - when you take it, diet (especially foods high in vitamin k such as green, leafy vegetables), etc. ...Read more

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Is it possible for you to take viagra (sildenafil) while taking warfarin?

Could be: Safe. Talk to the prescribing physician (s). If more than one, then make sure everyone has all the information. ...Read more

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Can I take Coumadin (warfarin) and adderrall?

Can I take Coumadin (warfarin) and adderrall?

Should not be a: Problem. Make sure your physician knows about all the medications you are taking including "natural" supplements. ...Read more

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What diet pill is ok to take while taking coumadin (warfarin)?

Diet pills: Anyone that is on Coumadin (warfarin) need to be aware of the drug drug interactions that occur and you will need to discuss with you doc and have the inr measured more frequently at the beginning. Diet pills only help to get you jump started on your diet. What you need is a change in you eating habits and exercise. ...Read more

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Can you safely take Lemsip Max on warfarin or Flecainide. If not what can you take?

Warfarin: Since any drug can alter the warfarin levels you need to clear it with your doctor ...Read more

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Is it safe to take miconazole if you're taking warfarin?

Yes but: Your physician should know about it, as it is likely to change the dose of warfarin you need while you are on it. Your INR will need to be monitored closely during and slightly after you take miconazole. ...Read more

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Should you take warfarin or aspirin, if you have had a previous stroke?

Yes: If you have had a cerebral embolism, you should be taking warfarin. If you have had an ischemic stroke, then you need an antiplatelet drug, of which Aspirin is the best initial choice and should be continued until a stroke recurrence, if any, develops. Then Aspirin could be replaced or supplemented by another antiplatelet drug. ...Read more

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Nitrofurantoin can I take with warfarin?

Nitrofurantoin can I take with warfarin?

Yes: There are no known or reported interactions between the two medications. ...Read more

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Can you take Tums while on coumadin (warfarin)?

Can you take Tums while on coumadin (warfarin)?

Yes: Tums are calcium which does not interfere with coumadin (warfarin). ...Read more

Dr. Ted King
699 Doctors shared insights

Coumadin (Definition)

Coumadin is an anticholinergic agent which is a kind of anti-Parkinson's drug ...Read more