Review: taking Coumadin and Tamiflu together


Summary

Drug interactions are reported among people who take Coumadin and Tamiflu together. This review analyzes the effectiveness and drug interactions between Coumadin and Tamiflu. It is created by eHealthMe based on reports of 273 people who take the same drugs from FDA and social media, and is updated regularly.

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Coumadin

Coumadin has active ingredients of warfarin sodium. It is often used in atrial fibrillation/flutter. (latest outcomes from Coumadin 101,806 users)

Tamiflu

Tamiflu has active ingredients of oseltamivir phosphate. It is often used in the flu. (latest outcomes from Tamiflu 13,805 users)

On Sep, 20, 2016

273 people who take Coumadin, Tamiflu are studied.


Number of reports submitted per year:

Coumadin and Tamiflu drug interactions.

Drug effectiveness over time:

Coumadin:
  • < 1 month: 0.0% - (0 of 0 people)
  • 1 - 6 months: 0.0% - (0 of 1 people)
  • 6 - 12 months: 100.0% - (1 of 1 people)
  • 1 - 2 years: 100.0% - (1 of 1 people)
  • 2 - 5 years: 0.0% - (0 of 0 people)
  • 5 - 10 years: 0.0% - (0 of 0 people)
  • 10+ years: 100.0% - (1 of 1 people)
  • not specified: 0.0% - (0 of 0 people)
Tamiflu:
  • < 1 month: 33.0% - (1 of 3 people)
  • 1 - 6 months: 0.0% - (0 of 0 people)
  • 6 - 12 months: 0.0% - (0 of 0 people)
  • 1 - 2 years: 0.0% - (0 of 0 people)
  • 2 - 5 years: 0.0% - (0 of 0 people)
  • 5 - 10 years: 0.0% - (0 of 0 people)
  • 10+ years: 0.0% - (0 of 0 people)
  • not specified: 0.0% - (0 of 0 people)

Drug effectiveness by gender:

Coumadin:
  • female: 50.0% - (1 of 2 people)
  • male: 100.0% - (2 of 2 people)
Tamiflu:
  • female: 0.0% - (0 of 2 people)
  • male: 100.0% - (1 of 1 people)

Drug effectiveness by age:

Coumadin:
  • 0-1: 0.0% - (0 of 0 people)
  • 2-9: 0.0% - (0 of 0 people)
  • 10-19: 0.0% - (0 of 0 people)
  • 20-29: 0.0% - (0 of 0 people)
  • 30-39: 100.0% - (1 of 1 people)
  • 40-49: 100.0% - (2 of 2 people)
  • 50-59: 0.0% - (0 of 0 people)
  • 60+: 0.0% - (0 of 1 people)
Tamiflu:
  • 0-1: 0.0% - (0 of 0 people)
  • 2-9: 0.0% - (0 of 0 people)
  • 10-19: 0.0% - (0 of 0 people)
  • 20-29: 0.0% - (0 of 0 people)
  • 30-39: 0.0% - (0 of 0 people)
  • 40-49: 50.0% - (1 of 2 people)
  • 50-59: 0.0% - (0 of 0 people)
  • 60+: 0.0% - (0 of 1 people)

Most common drug interactions over time *:

< 1 month:
  • international normalised ratio increased
  • pneumonia
  • impaired healing
  • skin ulcer
  • lobar pneumonia
  • influenza
  • renal impairment
  • dehydration
  • nausea
  • ventricular tachycardia
1 - 6 months:
  • impaired healing
  • pneumonia
  • skin ulcer
  • lobar pneumonia
  • renal impairment
  • accidental overdose
  • influenza
  • atrial fibrillation
  • rhabdomyolysis
  • amnesia
6 - 12 months:
  • impaired healing
  • pneumonia
  • skin ulcer
  • lobar pneumonia
  • international normalised ratio increased
  • lethargy
  • pancytopenia
  • pneumonia aspiration
  • sepsis
  • tachycardia
1 - 2 years:
  • heart disease aggravated
  • influenza
  • pericarditis
  • prothrombin time ratio increased
  • renal impairment
  • accidental overdose
  • epistaxis
2 - 5 years:
  • impaired healing
  • pneumonia
  • skin ulcer
  • lobar pneumonia
5 - 10 years:
  • accidental overdose
  • influenza
  • pericarditis
  • renal impairment
not specified:
  • international normalised ratio increased
  • influenza
  • pyrexia
  • asthenia
  • fall
  • anxiety
  • diarrhoea
  • nausea
  • dizziness
  • abasia

Most common drug interactions by gender *:

female:
  • international normalised ratio increased
  • pneumonia
  • influenza
  • fall
  • impaired healing
  • skin ulcer
  • anxiety
  • dizziness
  • nausea
  • arthralgia
male:
  • international normalised ratio increased
  • pyrexia
  • rhabdomyolysis
  • asthenia
  • diarrhoea
  • abasia
  • blood creatine phosphokinase increased
  • cardiac failure congestive
  • catheter sepsis
  • drug toxicity

Most common drug interactions by age *:

2-9:
  • international normalised ratio increased
  • influenza
  • atrial tachycardia
  • drug eruption
  • drug-induced liver injury
10-19:
  • convulsion
  • coagulation time prolonged
  • international normalised ratio increased
20-29:
  • bronchitis
  • conjunctivitis allergic
  • gastroenteritis
  • gingivitis
  • influenza
  • insomnia
  • iron deficiency anaemia
  • mania
  • nasopharyngitis
  • pulmonary hypertension
30-39:
  • international normalised ratio increased
  • blood triglycerides increased
  • cystitis
  • eczema
  • influenza
  • iron deficiency anaemia
  • lymphocyte count decreased
  • osteonecrosis
  • arthralgia
  • constipation
40-49:
  • international normalised ratio increased
  • influenza
  • circulatory collapse
  • pneumonia bacterial
  • depressed level of consciousness
  • shock
  • sinus tachycardia
  • stevens-johnson syndrome
  • abdominal discomfort
  • ageusia
50-59:
  • pulmonary embolism
  • dyspnoea
  • dysarthria
  • international normalised ratio increased
  • palpitations
  • atrial fibrillation
  • atrioventricular block complete
  • diabetes mellitus
  • diarrhoea
  • dizziness
60+:
  • international normalised ratio increased
  • pneumonia
  • impaired healing
  • skin ulcer
  • fall
  • anxiety
  • blood urea increased
  • torsade de pointes
  • asthenia
  • pyrexia

* Approximation only. Some reports may have incomplete information.

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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On eHealthMe, Coumadin (warfarin sodium) is often used to treat atrial fibrillation/flutter. Tamiflu (oseltamivir phosphate) is often used to treat the flu. Find out below the conditions the drugs are used for and how effective they are.

What is the drug used for and how effecitve is it:


NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

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