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 15
7.5 mg daily 12
6 mg daily 9
3 mg daily 6
4 mg daily 5
10 mg daily 4
2 mg daily 3
15 mg daily 3
2.5 mg daily 2
1 mg daily 1

See all 30 dosages

Why patients stopped taking Warfarin

Multiple reasons could be selected

Reason Patients
Course of treatment ended 55
Doctor's advice 54
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 129 patients who've stopped taking Warfarin

Duration

Currently taking Warfarin

Duration Patients
1 - 6 months 3
6 months - 1 year 1
1 - 2 years 5
2 - 5 years 21
5 - 10 years 16
10 years or more 35

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 13
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) 9
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

May 18, 2009 (Started Dec 01, 1999)

  • Effectiveness
    Slight (for Other)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 5 mg Daily
Advice & Tips: Just trying AFTER 10 years almost weekly sticks
Cost: < $25 monthly

  • 0 helpful marks

Mar 31, 2009 (Started Mar 31, 2009)

  • Effectiveness
    Major (for blood clot)
  • Side effects
    Moderate (bruising)
  • Adherence
    Always
  • Burden
    Somewhat hard to take
Dosage: 2.5 mg Daily
Advice & Tips: Must monitor INR biweekly, watch for internal bleeding.
Cost: < $25 monthly
Side effects: bruising

  • 0 helpful marks

Aug 28, 2008 (Started Aug 15, 2007)

  • Effectiveness
    Major (for Other)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 5 mg Daily
Cost: < $25 monthly

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