What is Warfarin?

Category: Prescription Drugs

Most popular types: Coumadin Marevan Jantoven Show all

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Warfarin is an an anticoagulant used to prevent and treat venous and pulmonary clotting disorders; for clotting complications arising from atrial fibrillation or cardiac valve replacement; and to reduce the risk of stroke and recurrent myocardial infarction (MI).

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Deep vein thrombosis 140 55
Prevent blood clotting 124 42
Blood clot 70 21
Atrial fibrillation 68 30
Antiphospholipid antibody syndrome 59 20
Pulmonary embolism 44 19

Show all 46 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 17
Moderate 34
Mild 47
None 89

Commonly reported side effects and conditions associated with Warfarin

Side effect Patients
Bruising 29
Bleed easily 7
Hair loss 6
Bleeding (hemorrhage) 4
Nausea 4
Nosebleeds (epistaxis) 4

Show all 40 reported side effects

Dosages

Based on patients currently taking Warfarin

Dosage Patients
5 mg daily 19
7.5 mg daily 11
6 mg daily 9
3 mg daily 6
4 mg daily 5
2 mg daily 4
10 mg daily 4
5 mg m,w,f 3
2.5 mg daily 3
15 mg daily 3

See all 32 dosages

Why patients stopped taking Warfarin

Multiple reasons could be selected

Reason Patients
Course of treatment ended 55
Doctor's advice 55
Other 19
Side effects too severe 19
Did not seem to work 7
Personal research 3
Change in health plan coverage 1
Expense 1
See all 130 patients who've stopped taking Warfarin

Duration

Currently taking Warfarin

Duration Patients
Less than 1 month 1
1 - 6 months 1
6 months - 1 year 2
1 - 2 years 9
2 - 5 years 22
5 - 10 years 21
10 years or more 34

Stopped taking Warfarin

Duration Patients
Less than 1 month 6
1 - 6 months 44
6 months - 1 year 29
1 - 2 years 19
2 - 5 years 13
5 - 10 years 14
10 years or more 5
Adherence
Adherence Evaluations
Always 170
Usually 10
Sometimes 2
Never taken as prescribed 5
Burden
Burden Evaluations
Very hard to take 9
Somewhat hard to take 27
A little hard to take 31
Not at all hard to take 120
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 2
$50-99 1
$25-49 8
< $25 98
Not specified 78

What people switch to and from

Patients started taking Warfarin after stopping:

Treatment Patients
Enoxaparin (Lovenox) 8
Rivaroxaban (Xarelto) 7
Heparin 6
Apixaban (Eliquis) 2
Amiloride 1

Show all 10 treatments patients report switching from

Patients stopped taking Warfarin and switched to:

Treatment Patients
Rivaroxaban (Xarelto) 6
Enoxaparin (Lovenox) 4
Apixaban (Eliquis) 3
Heparin 3
Acenocoumarol (Sintrom) 2

Show all 9 treatments patients report switching to

Last updated:

24 patient evaluations for Warfarin

Mar 10, 2014 (Started Sep 05, 2013)

  • Effectiveness
    Major (for Prevent blood clotting)
  • Effectiveness
    Major (for pulmonary embolism)
  • Side effects
    Moderate (bruising)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 5 mg Daily
Advice & Tips: While using this medication be VERY careful what you do. Since you bruise so easy and we all know that the bruises hurt, just be careful what you do. You may think you are okay until you wake up the next morning with bruises you aren't sure where they came from. I always felt tired on this medication and lost my breath easy, since being off of it I have been able to do more. So be careful while taking this medication and ALWAYS get your INR checked like your suppose to. Having numbers to high will actually hurt you worse than anything.
Cost: < $25 monthly

  • 0 helpful marks

Aug 16, 2012 (Started Feb 17, 2012)

  • Effectiveness
    Major (for pain in right leg)
  • Effectiveness
    Major (for deep vein thrombosis)
  • Side effects
    Mild (bleed easily, menorrhagia (heavy menstrual flow), Heavy menstrual periods)
  • Adherence
    Always
  • Burden
    Somewhat hard to take
Dosage: 3 mg Daily
Advice & Tips: Make sure you take the proper dose. Use a medication record to keep track. Write it down, and make sure you take the right dose. Prepare for numerous blood tests.
Cost: < $25 monthly

Apr 18, 2012 (Started Feb 17, 2012)

  • Effectiveness
    Major (for pain in right leg)
  • Effectiveness
    Major (for deep vein thrombosis)
  • Side effects
    Moderate (bleed easily, menorrhagia (heavy menstrual flow), Heavy menstrual periods)
  • Adherence
    Always
  • Burden
    Somewhat hard to take
Dosage: 3 mg Daily
Advice & Tips: You have to be careful not to fall or injure yourself. For women menstruation will be heavier than normal. So be prepared.
Cost: < $25 monthly

  • 0 helpful marks

Jun 30, 2012 (Started Feb 27, 2012)

  • Effectiveness
    Moderate (for deep vein thrombosis)
  • Side effects
    Mild (bruising)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 5.5 mg Daily

  • 0 helpful marks
Last updated:
Showing 3 of 24 patient evaluations for Warfarin