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 211 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 80,735 users)

Tamiflu

Tamiflu has active ingredients of oseltamivir phosphate. It is often used in the flu. (latest outcomes from Tamiflu 11,585 users)

On Aug, 23, 2016

211 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
  • renal impairment
  • ventricular tachycardia
  • blood urea increased
  • cardiac failure acute
  • influenza
  • loss of consciousness
  • respiratory failure
  • blood creatinine increased
  • dehydration
1 - 6 months:
  • decreased appetite
  • dehydration
  • electrocardiogram qt prolonged
  • atrial fibrillation
  • renal impairment
  • rhabdomyolysis
  • accidental overdose
  • blood creatinine increased
  • blood pressure fluctuation
  • blood urea increased
6 - 12 months:
  • international normalised ratio increased
  • pancytopenia
1 - 2 years:
  • heart disease aggravated
not specified:
  • international normalised ratio increased
  • pyrexia
  • anxiety
  • asthenia
  • fall
  • dizziness
  • diarrhoea
  • abasia
  • cerebrovascular accident
  • atrial fibrillation

Most common drug interactions by gender *:

female:
  • international normalised ratio increased
  • anxiety
  • dizziness
  • fall
  • cerebrovascular accident
  • atrial fibrillation
  • syncope
  • blood urea increased
  • arthralgia
  • weight decreased
male:
  • international normalised ratio increased
  • pyrexia
  • rhabdomyolysis
  • abasia
  • blood creatine phosphokinase increased
  • cardiac failure congestive
  • catheter sepsis
  • drug toxicity
  • mastication disorder
  • muscle injury

Most common drug interactions by age *:

10-19:
  • convulsion
  • coagulation time prolonged
  • international normalised ratio increased
20-29:
  • pulmonary embolism
  • anaemia
  • anxiety
  • attention deficit/hyperactivity disorder
  • bronchitis
  • cardiac arrest
  • conjunctivitis allergic
  • depression
  • dyspnoea
  • emotional distress
30-39:
  • international normalised ratio increased
  • arthralgia
  • blood triglycerides increased
  • cardiac failure acute
  • cardiogenic shock
  • cough
  • cystitis
  • eczema
  • hepatic failure
  • hepatocellular injury
40-49:
  • international normalised ratio increased
  • influenza
  • circulatory collapse
  • pneumonia bacterial
  • depressed level of consciousness
  • shock
  • sinus tachycardia
  • abdominal discomfort
  • ageusia
  • blister
50-59:
  • pulmonary embolism
  • dyspnoea
  • palpitations
  • atrial fibrillation
  • atrioventricular block complete
  • diabetes mellitus
  • diarrhoea
  • dizziness
  • haemoptysis
  • international normalised ratio increased
60+:
  • international normalised ratio increased
  • anxiety
  • fall
  • blood urea increased
  • torsade de pointes
  • pyrexia
  • asthenia
  • cerebrovascular accident
  • dizziness
  • syncope

* 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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