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This is an index of reports of adverse events (side effects, adverse reactions, etc.) related to Coumadin (Warfarin). Click on the relevant link below to view a selection of reports according to the event's seriousness level and/or the nature of the side effect / adverse reaction. Or scroll down to view a sample of recent reports further on this page.
Our database includes reports from Jan 2007 to Dec 2007. The information is not vetted and should not be cosidered as verified clinical evidence.
All cases (361)
Cases resulting in a serious event (353)
Cases resulting in death (141)
Cases resulting in life threatening events (38)
Cases resulting in hospitalization (187)
Cases resulting in disability (6)
Cases resulting in other serious reactions (85)
Below is a sample of reports where side effects / adverse reactions may be related to Coumadin (Warfarin). For a complete list and/or a specific selection of reports, please use the links in the index above.
Adverse event in 91 year old male receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from France on 2007-10-30
Patient: 91 year old male
Adverse reactions / side effects: Gingival Bleeding, Haemarthrosis, Pain in Extremity, Strabismus, Cerebral Haemorrhage, Disturbance in Attention, Hydrocephalus, Cerebral Haematoma
Adverse event resulted in: death, life threatening event
Suspect drug(s):
Arixtra
Dosage: 7.5mg per day
Indication: Arrhythmia
Start date: 2007-05-28
End date: 2007-06-08
Coumadin
Dosage: 4mg per day
Administration route: Oral
Start date: 2007-06-05
End date: 2007-06-08
Aspegic 325
Dosage: 100mg per day
Administration route: Oral
Start date: 2007-05-25
Other drugs received by patient: Inipomp; Lasix; Digoxin; Doliprane; Oflocet; Perindopril Erbumine; Diffu K; Colchicine Houde
Adverse event in 86 year old female receiving Coumadin (Warfarin)
Reported by a individual with unspecified qualification on 2007-10-26
Patient: 86 year old female
Adverse reactions / side effects: Haematuria, Neoplasm Progression
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Flagyl
Administration route: Oral
Start date: 2007-02-26
End date: 2007-03-12
Cordarone
Administration route: Oral
Indication: Atrial Fibrillation
End date: 2007-03-18
Coumadin
Administration route: Oral
Start date: 1997-01-01
End date: 2007-03-04
Innohep / 01707902 /
Start date: 2007-03-09
End date: 2007-03-15
Levothyrox
Administration route: Oral
End date: 2007-03-21
Rocephin
Start date: 2007-03-05
End date: 2007-03-11
Adverse event in 75 year old female receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from France on 2007-10-26
Patient: 75 year old female
Adverse reactions / side effects: Death, International Normalised Ratio Increased, Haematemesis
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Coumadin
Dosage: 22-dec-07 2mg/d; 25-dec-07 decreased to 1mg/d and it was increased to 2 mg again.
Start date: 2007-01-03
End date: 2007-01-30
Cardensiel
End date: 2007-02-01
Lipanthyl
End date: 2007-02-01
Stilnox
End date: 2007-02-01
Colchicine
End date: 2007-02-01
Topalgic
End date: 2007-02-01
Other drugs received by patient: Antivitamin K
Adverse event in female receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from France on 2007-10-26
Patient: female
Adverse reactions / side effects: Uterine Neoplasm, Haematuria, International Normalised Ratio Increased, Concomitant Disease Progression
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Cordarone
Administration route: Oral
Indication: Atrial Fibrillation
End date: 2007-03-18
Cordarone
Indication: Arrhythmia
Rocephin
Start date: 2007-03-05
End date: 2007-03-11
Flagyl
Administration route: Oral
Start date: 2007-02-26
End date: 2007-03-12
Levothyrox
Dosage: unspecified
Administration route: Oral
End date: 2007-03-21
Coumadin
Administration route: Oral
Indication: Arrhythmia
Start date: 1997-01-01
End date: 2007-03-06
Coumadin
Dosage: 1/4 tablet
Administration route: Oral
Indication: Atrial Fibrillation
Start date: 2007-03-09
Coumadin
Indication: Cardiac Valve Prosthesis User
Innohep
Start date: 2007-03-09
End date: 2007-03-15
Adverse event in 76 year old female receiving Coumadin (Warfarin)
Reported by a individual with unspecified qualification from France on 2007-10-26
Patient: 76 year old female
Adverse reactions / side effects: Overdose, International Normalised Ratio Increased, Fall, Ulcer, Haematemesis
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Cardensiel (2, 5 MG, Tablet) (Bisoprolol Fumarate)
Dosage: oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
End date: 2007-02-05
Coumadin
Dosage: 2 mg (2 mg, 1 d) oral; 1 mg (1 mg, 1 d) oral; 2 mg (2 mg, 1 d) oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Start date: 2006-12-22
End date: 2006-12-25
Coumadin
Dosage: 2 mg (2 mg, 1 d) oral; 1 mg (1 mg, 1 d) oral; 2 mg (2 mg, 1 d) oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Start date: 2006-12-25
End date: 2007-01-03
Coumadin
Dosage: 2 mg (2 mg, 1 d) oral; 1 mg (1 mg, 1 d) oral; 2 mg (2 mg, 1 d) oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Start date: 2007-01-03
End date: 2007-01-30
Lipanthyl (Capsule) (Fenofibrate)
Dosage: oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
End date: 2007-02-05
Zolpidem
Dosage: oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
End date: 2007-02-05
Colchicine (Tablet) (Colchicine)
Dosage: oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
End date: 2007-02-05
Tramadol HCL
Dosage: oral
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
End date: 2007-02-05
Adverse event in 89 year old male receiving Coumadin (Warfarin)
Reported by a individual with unspecified qualification from United States on 2007-10-26
Patient: 89 year old male
Adverse reactions / side effects: Haemorrhage, Drug Dispensing Error
Adverse event resulted in: hospitalization
Suspect drug(s):
Coumadin
Dosage: 4 mg, unk
Diovan
Other drugs received by patient: Proscar; Flomax
Adverse event in 81 year old female receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from Germany on 2007-10-25
Patient: 81 year old female, weighing 61.0 kg (134.2 pounds)
Adverse reactions / side effects: Blood Urine Present, Diverticulitis, Gastric Haemorrhage, Abdominal Pain Upper
Adverse event resulted in: hospitalization
Suspect drug(s):
Coumadin
Plavix
Aleve
Administration route: Oral
Indication: Back Pain
Start date: 2002-01-01
Other drugs received by patient: Synthroid; Lanoxin; Folic Acid; Prednisone; Caltrate + D; Lipitor; Calan; Valium
Adverse event in male receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from United States on 2007-10-24
Patient: male, weighing 64.7 kg (142.3 pounds)
Adverse reactions / side effects: Metabolic Acidosis, Nausea, Hypotension, Tachycardia, Renal Impairment, Diarrhoea, Intestinal Infarction, Leukopenia
Adverse event resulted in: death
Suspect drug(s):
Coumadin
Dosage: 2.5 mg daily oral
Administration route: Oral
Morphine
Dosage: 1 tsp q 2-4 hrns prn oral
Administration route: Oral
Indication: Pain
Duragesic-25
Dosage: 25 mcg q three days derm
Indication: Pain
Iressa
Dosage: 250 mg daily oral
Administration route: Oral
Start date: 2007-09-17
End date: 2007-10-18
Cozaar
Dosage: 50 mg daily oral
Administration route: Oral
Indication: Hypertension
Viagra
Dosage: 50 mg prn oral
Administration route: Oral
Compazine
Dosage: 10 mg prn oral
Administration route: Oral
Indication: Nausea
Klonopin
Dosage: 1 mg prn oral
Administration route: Oral
Indication: Somnolence
Adverse event in 75 year old male receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from United States on 2007-10-24
Patient: 75 year old male, weighing 66.7 kg (146.7 pounds)
Adverse reactions / side effects: International Normalised Ratio Increased, Drug Interaction
Suspect drug(s):
Megestrol Acetate
Dosage: (5 ml tid oral)
Indication: Decreased Appetite
Start date: 2007-09-11
Coumadin
Dosage: (df)
Indication: Drug USE FOR Unknown Indication
Other drugs received by patient: Zocor; Neurontin; Vicodin ES; Remeron; Miralax
Adverse event in 76 year old female receiving Coumadin (Warfarin)
Reported by a individual with unspecified qualification from United States on 2007-10-24
Patient: 76 year old female, weighing 102.0 kg (224.4 pounds)
Adverse reactions / side effects: Oral Intake Reduced, Cellulitis, International Normalised Ratio Increased, Drug Interaction, Haemoglobin Decreased, Haematochezia, Diarrhoea, Infection
Adverse event resulted in: hospitalization
Suspect drug(s):
Coumadin
Dosage: po
Administration route: Oral
Indication: Atrial Fibrillation
Antibiotics - Unknown
Indication: Cellulitis
Antibiotics - Unknown
Indication: Clostridial Infection
Adverse event in 85 year old female receiving Coumadin (Warfarin)
Reported by a pharmacist from United States on 2007-10-24
Patient: 85 year old female, weighing 60.0 kg (132.0 pounds)
Adverse reactions / side effects: Tachycardia, Hypoglycaemia, Disseminated Intravascular Coagulation, Coagulopathy, Shock Haemorrhagic, Klebsiella Infection, Activated Partial Thromboplastin Time Prolonged, Azotaemia, Retroperitoneal Haemorrhage, Renal Failure Acute, Metabolic Acidosis, International Normalised Ratio Increased, Electromechanical Dissociation, Pulse Absent, Proteus Infection, Cardiac Arrest, Septic Shock
Adverse event resulted in: death, life threatening event, hospitalization
Suspect drug(s):
Coumadin
Dosage: 2 mg qhs po
Administration route: Oral
Indication: Atrial Fibrillation
Start date: 2005-01-01
End date: 2007-06-22
Coumadin
Dosage: 2 mg qhs po
Administration route: Oral
Indication: Cerebrovascular Accident
Start date: 2005-01-01
End date: 2007-06-22
Aspirin
Dosage: 81 mg qday po
Administration route: Oral
Indication: Prophylaxis
Start date: 2005-01-01
End date: 2007-06-22
Other drugs received by patient: Allopurinol; Cozaar; Famotidine; Metoprolol Tartrate; Sodium Bicarbonate
Adverse event in 81 year old female receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from United States on 2007-10-23
Patient: 81 year old female, weighing 61.0 kg (134.2 pounds)
Adverse reactions / side effects: Blood Urine Present, Diverticulitis, Gastric Haemorrhage, Abdominal Pain Upper
Adverse event resulted in: hospitalization
Suspect drug(s):
Aleve
Dosage: total daily dose: 440 mg unit dose: 220 mg
Administration route: Oral
Indication: Back Pain
Start date: 2002-01-01
Coumadin
Indication: Drug USE FOR Unknown Indication
Plavix
Indication: Drug USE FOR Unknown Indication
Other drugs received by patient: Synthroid; Lanoxin; Folic Acid; Prednisone; Caltrate D; Lipitor; Calan; Valium
Adverse event in receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from United States on 2007-10-23
Patient:
Adverse reactions / side effects: Haemoglobin Decreased, Atelectasis, Haematocrit Decreased, Dyspnoea, Pneumonia, Chest Pain, Myocardial Infarction, Blood Glucose Increased
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Methadone HCL
Dosage: 10 mg, 1-2 tablet, q6hr
Administration route: Oral
Indication: Pain
Methadone HCL
Dosage: 40 mg, bid
Administration route: Oral
Start date: 2007-08-20
CP-751,871
Dosage: 1560 mg, single (1 dose q 21 days)
Indication: non-Small Cell Lung Cancer
Start date: 2007-06-20
End date: 2007-06-20
CP-751,871
Dosage: 1600 mg, single (1 dose q 21 days)
Start date: 2007-07-11
End date: 2007-07-11
CP-751,871
Dosage: 1540 mg, single (1 dose q 21 days)
Start date: 2007-08-01
Taxol
Dosage: 395 mg, single (1 dose q 21 days)
Indication: non-Small Cell Lung Cancer
Start date: 2007-06-19
End date: 2007-06-19
Taxol
Dosage: 382 mg, single (1 dose q 21 days)
Start date: 2007-07-10
End date: 2007-07-10
Taxol
Dosage: 329 mg, single (1 dose q 21 days)
Start date: 2007-07-31
End date: 2007-07-31
Carboplatin
Dosage: 620 mg, single (1 dose q 21 days)
Indication: non-Small Cell Lung Cancer
Start date: 2007-06-19
End date: 2007-06-19
Carboplatin
Dosage: 564 mg, single ( 1 dose q 21 days)
Start date: 2007-07-10
End date: 2007-07-10
Carboplatin
Dosage: 516 mg, single (1 dose q 21 days)
Start date: 2007-07-31
Lexapro
Dosage: 10 mg, qd
Administration route: Oral
Start date: 2007-06-12
Coumadin
Dosage: 5 mg, qd
Administration route: Oral
Start date: 2007-07-31
Lovenox
Dosage: 10 mg, q6-8hr
Administration route: Oral
Start date: 2007-06-12
Other drugs received by patient: Reglan / 00041901 /; Nitroglycerin; Gabapentin; Oxycodone HCL
Adverse event in male receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from France on 2007-10-19
Patient: male
Adverse reactions / side effects: Pleural Haemorrhage
Adverse event resulted in: hospitalization
Suspect drug(s):
Zoloft
Administration route: Oral
Coumadin
Dosage: daily dose:9mg
Administration route: Oral
Indication: Deep Vein Thrombosis
Start date: 2002-01-01
End date: 2007-03-27
Pyostacine
Administration route: Oral
Start date: 2007-01-02
End date: 2007-01-09
Seretide
Start date: 2007-01-02
End date: 2007-01-09
Domperidone
Administration route: Oral
Start date: 2007-01-02
End date: 2007-01-09
Other drugs received by patient: Melilot; Heparin
Adverse event in 74 year old female receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from United States on 2007-10-19
Patient: 74 year old female
Adverse reactions / side effects: Malaise, Coagulopathy, Drug Interaction
Suspect drug(s):
Alli
Indication: Weight Loss Diet
Start date: 2007-07-15
End date: 2007-07-24
Coumadin
Indication: Anticoagulant Therapy
End date: 2007-07-24
Adverse event in male receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from United States on 2007-10-19
Patient: male, weighing 88.5 kg (194.7 pounds)
Adverse reactions / side effects: Injection Site Haemorrhage, Haemorrhage, Alopecia, Injection Site Bruising, Deep Vein Thrombosis
Adverse event resulted in: hospitalization
Suspect drug(s):
Plavix
Administration route: Oral
Indication: Stent Placement
Start date: 2006-01-01
Aspirin
Administration route: Oral
Indication: Deep Vein Thrombosis
Coumadin
Dosage: unk
Administration route: Oral
Indication: Deep Vein Thrombosis
Start date: 2005-08-01
End date: 2007-02-01
Lovenox
Indication: Deep Vein Thrombosis
Start date: 2007-02-07
End date: 2007-03-22
Lovenox
Start date: 2007-03-22
Other drugs received by patient: Risperdal; Risperdal; Toprol-XL; Topamax; Singulair; Advair Diskus 100 / 50; Zetia; Lipitor; Allegra; Prozac; Lexapro; Provigil; Patanol
Adverse event in 86 year old female receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from France on 2007-10-18
Patient: 86 year old female
Adverse reactions / side effects: Abdominal Pain, Neoplasm Malignant, Haematuria, International Normalised Ratio Increased
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Coumadin
Dosage: received 1/4 tablet on 09-mar-2007
Indication: Atrial Fibrillation
Start date: 1997-01-01
Coumadin
Dosage: received 1/4 tablet on 09-mar-2007
Indication: Atrial Flutter
Start date: 1997-01-01
Coumadin
Dosage: received 1/4 tablet on 09-mar-2007
Indication: Heart Valve Replacement
Start date: 1997-01-01
Innohep
Dosage: 1 dosage form = 10000iu anti-xa 1dose/day
Start date: 2007-03-09
End date: 2007-03-15
Cordarone
Dosage: 200mg every other day
End date: 2007-03-18
Flagyl
Start date: 2007-02-26
End date: 2007-03-12
Levothyrox
End date: 2007-03-21
Rocephin
Start date: 2007-03-05
End date: 2007-03-11
Adverse event in 72 year old male receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from United States on 2007-10-18
Patient: 72 year old male, weighing 76.9 kg (169.2 pounds)
Adverse reactions / side effects: Dyspnoea, Chest Pain
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Lovenox
Indication: Anticoagulant Therapy
Start date: 2007-07-27
Methadone HCL
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Start date: 2007-01-01
Lexapro
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Start date: 2007-06-12
Coumadin
Administration route: Oral
Indication: Anticoagulant Therapy
Start date: 2007-07-31
Other drugs received by patient: Reglan / 00041901 /; Nitroglycerin; Gabapentin; CP-751, 871 (Investigational Drug); CP-751, 871 (Investigational Drug); CP-751, 871 (Investigational Drug); Paclitaxel; Paclitaxel; Paclitaxel; Carboplatin; Carboplatin; Carboplatin
Adverse event in 87 year old female receiving Coumadin (Warfarin)
Reported by a health professional (non-physician/pharmacist) from France on 2007-10-17
Patient: 87 year old female
Adverse reactions / side effects: International Normalised Ratio Decreased, Haemorrhage Intracranial, Coma, Fall, Haematoma
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Coumadin (Warfarin)
Other drugs received by patient: Actonel; Digoxin; Lasix; Levothyrox; Seropram; Exelon; Xanax
Adverse event in 85 year old male receiving Coumadin (Warfarin)
Reported by a physician from United States on 2007-10-17
Patient: 85 year old male
Adverse reactions / side effects: Haemorrhage, Pancreatitis, Gastritis
Adverse event resulted in: hospitalization
Suspect drug(s):
Revlimid
Dosage: 5 mg, 1 in 1 d, oral; 5 mg, qhs, oral
Administration route: Oral
Indication: Myelodysplastic Syndrome
Start date: 2007-04-03
End date: 2007-06-01
Revlimid
Dosage: 5 mg, 1 in 1 d, oral; 5 mg, qhs, oral
Administration route: Oral
Indication: Myelodysplastic Syndrome
Start date: 2007-07-01
Coumadin
Dosage: alternate 4 + 5 mg
Indication: Atrial Fibrillation
Other drugs received by patient: Prednisone TAB; Carafate; Nexium; Multivitamin; Toprol-XL; Folic Acid; Digoxin
Adverse event in 70 year old female receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from United States on 2007-10-16
Patient: 70 year old female
Adverse reactions / side effects: Haematocrit Decreased, Oedema Peripheral, Haematoma
Adverse event resulted in: hospitalization
Suspect drug(s):
Arixtra
Dosage: 7.5mg per day
Indication: Deep Vein Thrombosis
Start date: 2007-10-03
End date: 2007-10-07
Coumadin
Dosage: 10mg per day
Start date: 2007-10-03
Adverse event in 91 year old male receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from France on 2007-10-16
Patient: 91 year old male
Adverse reactions / side effects: Gingival Bleeding, Haemarthrosis, Pain in Extremity, Strabismus, Cerebral Haemorrhage, Disturbance in Attention, Hydrocephalus, Cerebral Haematoma
Adverse event resulted in: death, life threatening event
Suspect drug(s):
Arixtra
Dosage: 7.5mg per day
Indication: Arrhythmia
Start date: 2007-05-28
End date: 2007-06-08
Coumadin
Dosage: 4mg per day
Administration route: Oral
Start date: 2007-06-05
End date: 2007-06-08
Aspegic 325
Dosage: 100mg per day
Administration route: Oral
Start date: 2007-05-25
Other drugs received by patient: Inipomp; Lasix; Digoxin; Doliprane; Oflocet; Perindopril Erbumine; Diffu K; Colchicine Houde
Adverse event in 84 year old female receiving Coumadin (Warfarin)
Reported by a physician from France on 2007-10-16
Patient: 84 year old female
Adverse reactions / side effects: Anaemia, Prothrombin Time Shortened, Subcutaneous Haematoma, Fall
Adverse event resulted in: hospitalization
Suspect drug(s):
Coumadin
Indication: Atrial Fibrillation
Start date: 2006-01-01
End date: 2007-09-21
Levothyrox
Melaxose
Other drugs received by patient: Glucophage; Modopar; Anafranil; Xanax; Kenzen; Lasix; Forlax; Veinamitol; Gaviscon; Inexium; Propofol
Adverse event in male receiving Coumadin (Warfarin)
Reported by a consumer/non-health professional from United States on 2007-10-16
Patient: male, weighing 68.0 kg (149.6 pounds)
Adverse reactions / side effects: Weight Decreased, Dysgeusia, Anorexia, Compartment Syndrome, Parosmia, International Normalised Ratio Fluctuation, Herpes Zoster
Adverse event resulted in: hospitalization
Suspect drug(s):
Coumadin (Warfarin)
Other drugs received by patient: Coreg
Adverse event in 60 year old male receiving Coumadin (Warfarin)
Reported by a physician from United States on 2007-10-15
Patient: 60 year old male
Adverse reactions / side effects: Blood Creatine Phosphokinase Increased, Coagulopathy, Drug Interaction, Pyrexia, Myalgia, Nephrolithiasis, Pyelectasia, Oedema Peripheral, Muscle Spasms, Cough, Back Pain, Haemorrhage Urinary Tract, Haematuria, Anaemia, Benign Prostatic Hyperplasia, Renal Cyst, Flank Pain, Dehydration
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Zolinza
Administration route: Oral
Indication: Mycosis Fungoides
Start date: 2007-07-13
End date: 2007-07-25
Targretin
Administration route: Oral
End date: 2007-07-25
Coumadin
Administration route: Oral
End date: 2007-07-25
Lipitor
Administration route: Oral
Indication: Hyperlipidaemia
End date: 2007-07-25
Other drugs received by patient: Paxil; Ritalin; Megace; Synthroid; Toprol-XL; Omega-3 Marine Triglycerides; Prinivil; Zantac; Hydroxyzine Hydrochloride
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