Review: could Warfarin Sodium cause Petechiae?


Petechiae is found among people who take Warfarin Sodium, especially for people who are female, 60+ old , have been taking the drug for < 1 month, also take medication Furosemide, and have Pulmonary embolism . We study 47,969 people who have side effects while taking Warfarin sodium from FDA and social media. Among them, 125 have Petechiae. Find out below who they are, when they have Petechiae and more.

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Warfarin Sodium

Warfarin sodium has active ingredients of warfarin sodium. It is often used in atrial fibrillation/flutter. (latest outcomes from Warfarin sodium 49,826 users)


Petechiae (a small red or purple spot caused by bleeding into the skin) has been reported by people with nausea (latest reports from 6,955 Petechiae patients).

On Aug, 24, 2016

47,969 people reported to have side effects when taking Warfarin Sodium.
Among them, 125 people (0.26%) have Petechiae

Number of reports submitted per year:

Could Warfarin sodium cause Petechiae?

Time on Warfarin Sodium when people have Petechiae *:

  • < 1 month: 23.53 %
  • 1 - 6 months: 17.65 %
  • 6 - 12 months: 17.65 %
  • 1 - 2 years: 11.76 %
  • 2 - 5 years: 5.88 %
  • 5 - 10 years: 17.65 %
  • 10+ years: 5.88 %

Gender of people who have Petechiae when taking Warfarin Sodium *:

  • female: 63.11 %
  • male: 36.89 %

Age of people who have Petechiae when taking Warfarin Sodium *:

  • 0-1: 1.8 %
  • 2-9: 1.8 %
  • 10-19: 0.0 %
  • 20-29: 2.7 %
  • 30-39: 1.8 %
  • 40-49: 16.22 %
  • 50-59: 26.13 %
  • 60+: 49.55 %

Severity if Petechiae when taking Warfarin Sodium **:

  • least: 11.11 %
  • moderate: 77.78 %
  • severe: 11.11 %
  • most severe: 0.0 %

How people recovered from Petechiae **:

  • while on drug: 0.0 %
  • after off the drug: 0.0 %
  • not yet: 100 %

Top conditions involved for these people *:

  • Pulmonary Embolism (22 people)
  • Pneumonia (14 people)
  • Multiple Myeloma (11 people)
  • Atrial Fibrillation (10 people)
  • Glioblastoma Multiforme (9 people)

Top co-used drugs for these people *:

  • Furosemide (39 people)
  • Metoclopramide (23 people)
  • Aspirin (23 people)
  • Heparin (20 people)
  • Lasix (18 people)

* Approximation only. Some reports may have incomplete information.

** Reports from social media are used.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

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