Review: taking Coumadin and Viagra together


Summary

Drug interactions are reported among people who take Coumadin and Viagra together. This review analyzes the effectiveness and drug interactions between Coumadin and Viagra. It is created by eHealthMe based on reports of 6,012 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)

Viagra

Viagra has active ingredients of sildenafil citrate. It is often used in erection problems. (latest outcomes from Viagra 38,310 users)

On Aug, 21, 2016

6,012 people who take Coumadin, Viagra are studied.


Number of reports submitted per year:

Coumadin and Viagra drug interactions.

Drug effectiveness over time:

Coumadin:
  • < 1 month: 0.0% - (0 of 1 people)
  • 1 - 6 months: 40.0% - (2 of 5 people)
  • 6 - 12 months: 100.0% - (2 of 2 people)
  • 1 - 2 years: 75.0% - (3 of 4 people)
  • 2 - 5 years: 77.0% - (7 of 9 people)
  • 5 - 10 years: 80.0% - (4 of 5 people)
  • 10+ years: 100.0% - (5 of 5 people)
  • not specified: 100.0% - (1 of 1 people)
Viagra:
  • < 1 month: 0.0% - (0 of 5 people)
  • 1 - 6 months: 40.0% - (2 of 5 people)
  • 6 - 12 months: 60.0% - (3 of 5 people)
  • 1 - 2 years: 75.0% - (3 of 4 people)
  • 2 - 5 years: 40.0% - (2 of 5 people)
  • 5 - 10 years: 60.0% - (3 of 5 people)
  • 10+ years: 33.0% - (1 of 3 people)
  • not specified: 50.0% - (1 of 2 people)

Drug effectiveness by gender:

Coumadin:
  • female: 75.0% - (6 of 8 people)
  • male: 75.0% - (18 of 24 people)
Viagra:
  • female: 57.0% - (4 of 7 people)
  • male: 40.0% - (11 of 27 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: 66.0% - (2 of 3 people)
  • 30-39: 100.0% - (1 of 1 people)
  • 40-49: 77.0% - (7 of 9 people)
  • 50-59: 66.0% - (2 of 3 people)
  • 60+: 75.0% - (12 of 16 people)
Viagra:
  • 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: 66.0% - (2 of 3 people)
  • 30-39: 0.0% - (0 of 1 people)
  • 40-49: 50.0% - (4 of 8 people)
  • 50-59: 60.0% - (3 of 5 people)
  • 60+: 35.0% - (6 of 17 people)

Most common drug interactions over time *:

< 1 month:
  • hypotension
  • cardiac failure
  • dyspnoea
  • headache
  • cardiac failure congestive
  • sickle cell anaemia with crisis
  • multi-organ failure
  • respiratory failure
  • circulatory collapse
  • drug ineffective
1 - 6 months:
  • pulmonary hypertension
  • dyspnoea
  • hypotension
  • vitreous haemorrhage
  • anaemia
  • cardiac failure congestive
  • right ventricular failure
  • syncope
  • atrial fibrillation
  • death
6 - 12 months:
  • cardiac failure
  • dyspnoea
  • hypoxia
  • vitreous haemorrhage
  • brain natriuretic peptide increased
  • pulmonary haemorrhage
  • skin lesion
  • circulatory collapse
  • diarrhoea
  • fatigue
1 - 2 years:
  • right ventricular failure
  • anaemia
  • dizziness
  • nausea
  • systemic lupus erythematosus
  • blood pressure decreased
  • cardiac failure congestive
  • fatigue
  • international normalised ratio increased
  • sepsis
2 - 5 years:
  • anaemia
  • right ventricular failure
  • fatigue
  • gastrointestinal haemorrhage
  • pulmonary hypertension
  • asthenia
  • cardiac failure congestive
  • dyspnoea
  • syncope
  • cerebral haemorrhage
5 - 10 years:
  • pulmonary hypertension
  • arthropathy
  • atrial fibrillation
  • cardiac disorder
  • cardiac failure
  • cor pulmonale
  • fall
  • femur fracture
  • head injury
  • hypoxia
10+ years:
  • asthenia
  • dyspnoea
  • dysuria
  • fall
  • gait disturbance
  • heart rate decreased
  • micturition disorder
  • pulmonary embolism
  • upper limb fracture
  • blood pressure abnormal
not specified:
  • dyspnoea
  • death
  • fatigue
  • pneumonia
  • drug ineffective
  • headache
  • dizziness
  • nausea
  • oedema peripheral
  • pulmonary hypertension

Most common drug interactions by gender *:

female:
  • dyspnoea
  • death
  • headache
  • pulmonary hypertension
  • nausea
  • pneumonia
  • oedema peripheral
  • dizziness
  • fatigue
  • anaemia
male:
  • drug ineffective
  • dyspnoea
  • death
  • fatigue
  • atrial fibrillation
  • asthenia
  • pain
  • hypotension
  • fall
  • cardiac failure congestive

Most common drug interactions by age *:

0-1:
  • multi-organ failure
  • cardiac failure
  • hypotension
  • death
  • sepsis
  • abdominal distension
  • bradypnoea
  • cardiopulmonary failure
  • feeding disorder neonatal
  • hypertension
2-9:
  • cardiac failure
  • alanine aminotransferase increased
  • aspartate aminotransferase increased
  • device related infection
  • pneumonia
  • vomiting
  • congenital mitral valve stenosis
  • abasia
  • abdominal pain
  • arthralgia
10-19:
  • death
  • dyspnoea
  • respiratory failure
  • headache
  • chest pain
  • diarrhoea
  • pulmonary arterial hypertension
  • alanine aminotransferase increased
  • aspartate aminotransferase increased
  • convulsion
20-29:
  • pulmonary hypertension
  • nausea
  • vomiting
  • pleural effusion
  • headache
  • bronchitis
  • device related infection
  • fatigue
  • right ventricular failure
  • dyspnoea
30-39:
  • dyspnoea
  • headache
  • pulmonary arterial hypertension
  • nausea
  • vomiting
  • pulmonary hypertension
  • hypotension
  • pyrexia
  • diarrhoea
  • device related infection
40-49:
  • dyspnoea
  • pneumonia
  • fatigue
  • headache
  • nausea
  • right ventricular failure
  • dizziness
  • diarrhoea
  • death
  • hypotension
50-59:
  • dyspnoea
  • death
  • fatigue
  • nausea
  • pain
  • headache
  • oedema peripheral
  • anxiety
  • drug ineffective
  • pneumonia
60+:
  • dyspnoea
  • death
  • drug ineffective
  • dizziness
  • fall
  • hypotension
  • asthenia
  • fatigue
  • anaemia
  • oedema peripheral

* 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. Viagra (sildenafil citrate) is often used to treat erection problems. 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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