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This is an index of reports of adverse events (side effects, adverse reactions, etc.) related to Infergen (Interferon Alfacon-1). 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 primarily from April 2009 to March 2010. The information is not vetted and should not be cosidered as verified clinical evidence.
All cases (63)
Cases resulting in a serious event (61)
Cases resulting in death (2)
Cases resulting in life threatening events (7)
Cases resulting in hospitalization (28)
Cases resulting in disability (3)
Cases resulting in other serious reactions (37)
Below is a sample of reports where side effects / adverse reactions may be related to Infergen (Interferon Alfacon-1). For a complete list and/or a specific selection of reports, please use the links in the index above.
Possible Infergen side effects / adverse reactions in male
Reported by a health professional (non-physician/pharmacist) from United States on 2010-03-24
Patient: male, weighing 90.7 kg (199.6 pounds)
Reactions: Confusional State, White Blood Cell Count Decreased, Blood Thyroid Stimulating Hormone Increased, Disorientation, Repetitive Speech, Suicidal Ideation, Haemoglobin Decreased, Incoherent, Haematocrit Decreased, Bipolar Disorder, Platelet Count Decreased, Depression, Sluggishness
Adverse event resulted in: life threatening event, hospitalization, disablity
Suspect drug(s):
Infergen
Dosage: 15 ?g subcutaneous
Indication: Hepatitis C
Start date: 2009-11-23
Ribavirin
Dosage: 1200 mg, daily oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-11-23
Other drugs received by patient: Prezista; Norvir; Seroquel; Effexor XR; Paxil; Darvocet-N 100; Acetaminophen and Hydrocodone Bitartrate; Truvada; Diclofenac Potassium; Bactrim
Possible Infergen side effects / adverse reactions in male
Reported by a physician from United States on 2010-03-22
Patient: male, weighing 69.9 kg (153.7 pounds)
Reactions: Blood Bilirubin Increased, Haemorrhage, Gastric Cancer, Blood Calcium Decreased, Glycosylated Haemoglobin Increased, Fatigue, RED Blood Cell Count Decreased, Dyspepsia, Chest Pain, Blood Sodium Decreased, Blood Glucose Increased, Blood Urine Present, Dyspnoea, White Blood Cells Urine Positive, Protein Urine, Blood Creatine Phosphokinase Decreased, Blood Amylase Increased, Aspartate Aminotransferase Increased, Hypertension, Normochromic Normocytic Anaemia, RED Blood Cell Sedimentation Rate Increased
Adverse event resulted in: hospitalization
Suspect drug(s):
Infergen
Dosage: (15 ug 1c/week subcutaneous)
Indication: Hepatitis C
Start date: 2010-01-14
Ribavirin
Dosage: (1000 mg, daily oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2010-01-14
Other drugs received by patient: Prilosec; Lisinopril; Neurontin; Allopurinol; Voltaren; Reglan
Possible Infergen side effects / adverse reactions in male
Reported by a consumer/non-health professional from United States on 2010-03-10
Patient: male, weighing 90.7 kg (199.6 pounds)
Reactions: Anhedonia, Dyspnoea, Vomiting, Nausea, Impaired Work Ability, Mental Disorder, Influenza Like Illness
Adverse event resulted in: disablity
Suspect drug(s):
Infergen
Dosage: 15 ug qd subcutaneous
Indication: Hepatitis C
Start date: 2010-01-23
Pegasys
Dosage: df
Indication: Hepatitis C
Ribavirin
Dosage: 1000 mg (600 mg qam and 400 mg qpm] oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2010-01-23
Ribavirin
Dosage: df
Indication: Hepatitis C
Possible Infergen side effects / adverse reactions in
Reported by a physician from United States on 2010-03-08
Patient:
Reactions: Fatigue, Neutropenia, Leukopenia
Suspect drug(s):
Infergen
Dosage: (15 mcg)
Indication: Hepatitis C
Ribavirin
Dosage: 1200
Indication: Hepatitis C
Possible Infergen side effects / adverse reactions in female
Reported by a physician from United States on 2010-03-03
Patient: female, weighing 62.5 kg (137.5 pounds)
Reactions: Hypotension, Sepsis, Pancytopenia, Pyrexia, Asthenia
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Infergen
Dosage: (15 ug qd) subcutaneous
Indication: Hepatitis C
Start date: 2009-10-06
End date: 2009-12-22
Ribavirin
Dosage: (400 mg bid oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-10-06
End date: 2009-12-22
Possible Infergen side effects / adverse reactions in male
Reported by a physician from United States on 2010-03-02
Patient: male, weighing 72.1 kg (158.7 pounds)
Reactions: Amaurosis Fugax, Cellulitis
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Infergen
Dosage: 15 ug qd subcutaneous
Indication: Hepatitis C
Start date: 2009-10-19
End date: 2010-01-07
Ribavirin
Dosage: 400 mg, bid oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-10-19
End date: 2010-01-07
Possible Infergen side effects / adverse reactions in 54 year old male
Reported by a health professional (non-physician/pharmacist) from United States on 2010-02-19
Patient: 54 year old male
Reactions: Hypertensive Encephalopathy, Treatment Noncompliance
Adverse event resulted in: hospitalization
Suspect drug(s):
Antihypertensives
Dosage: (df)
Indication: Hypertension
Infergen
Dosage: (df)
Indication: Drug USE FOR Unknown Indication
End date: 2010-01-25
Ribavirin
Dosage: (df)
Indication: Drug USE FOR Unknown Indication
Possible Infergen side effects / adverse reactions in male
Reported by a individual with unspecified qualification from United States on 2010-02-19
Patient: male
Reactions: White Blood Cell Count Decreased, Complications of Transplanted Liver, Hepatitis C, Drug Ineffective, Hepatic Neoplasm Malignant, Anaemia, Liver Transplant, Therapeutic Response Decreased, Decreased Immune Responsiveness, Platelet Count Decreased, Neutropenia, Unevaluable Event, Chronic Hepatic Failure
Suspect drug(s):
Infergen
Dosage: 12 ug qd, subcutaneous
Indication: Hepatitis C
Start date: 2009-10-01
Interferon
Dosage: df,
Indication: Hepatitis C
Neupogen
Dosage: df
Indication: Neutropenia
PEG-Interferon
Dosage: df
Indication: Hepatitis C
Ribavirin
Dosage: df,
Start date: 2009-10-01
Possible Infergen side effects / adverse reactions in male
Reported by a consumer/non-health professional from United States on 2010-02-17
Patient: male, weighing 77.1 kg (169.6 pounds)
Reactions: Confusional State, Weight Decreased, Vomiting, Nausea, Pyrexia, Fatigue, Balance Disorder, Dizziness, Fluid Intake Reduced, Hypersomnia, Decreased Appetite
Suspect drug(s):
Infergen
Dosage: (15 ug qd subcutaneous)
Indication: Hepatitis C
Start date: 2009-12-18
End date: 2010-01-29
Ribavirin
Dosage: (1000 mg, [400 mg qam and 600 mg qpm] oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-12-18
End date: 2010-01-29
Other drugs received by patient: B12-Vitamin; Advair Diskus 100 / 50; Diazepam; Synthroid; Mobic; Protonix / 01263201 /; Albuterol; Promethazine; Zoloft; Soma; MS Contin
Possible Infergen side effects / adverse reactions in female
Reported by a consumer/non-health professional from United States on 2010-02-16
Patient: female, weighing 139.0 kg (305.8 pounds)
Reactions: Chills, Headache, Pyrexia, Hyperhidrosis, Treatment Noncompliance, Thyroxine Free Increased, Myalgia, Chest Pain, DRY Mouth, Depression, Gastrooesophageal Reflux Disease, Decreased Appetite, Cough, White Blood Cell Count Decreased, Psychomotor Hyperactivity, Nausea, Anaemia, DRY Skin, Sensation of Pressure, Paraesthesia, Burning Sensation, Arthralgia, Aspartate Aminotransferase Increased, Alopecia, Dehydration, Insomnia, NO Therapeutic Response, Neutropenia, DRY Eye
Suspect drug(s):
Infergen
Dosage: 15 ug qd, subcutaneous
Indication: Hepatitis C
Start date: 2009-05-23
End date: 2009-05-27
Pegasys
Dosage: 180 ug 1x/week
Start date: 2009-02-01
End date: 2009-05-01
Ribavirin
Dosage: see image, oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-02-01
End date: 2009-05-01
Ribavirin
Dosage: see image, oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-05-23
End date: 2009-05-27
Other drugs received by patient: Effexor; Citracal; Daily Multivitamin; Fish OIL
Possible Infergen side effects / adverse reactions in male
Reported by a physician from United States on 2010-02-12
Patient: male
Reactions: Necrosis
Suspect drug(s):
Infergen
Possible Infergen side effects / adverse reactions in male
Reported by a health professional (non-physician/pharmacist) from United States on 2010-02-12
Patient: male
Reactions: Hypertensive Encephalopathy
Adverse event resulted in: hospitalization
Suspect drug(s):
Infergen
Dosage: (15 ug, df)
Indication: Drug USE FOR Unknown Indication
Ribavirin
Dosage: (200 mg, df)
Indication: Drug USE FOR Unknown Indication
Possible Infergen side effects / adverse reactions in male
Reported by a pharmacist from United States on 2010-02-03
Patient: male
Reactions: Wrong Technique in Drug Usage Process, Injection Site Reaction
Suspect drug(s):
Infergen
Dosage: (df)
Indication: Drug USE FOR Unknown Indication
Lantus
Dosage: (df)
Indication: Drug USE FOR Unknown Indication
Possible Infergen side effects / adverse reactions in 59 year old male
Reported by a health professional (non-physician/pharmacist) from United States on 2010-02-01
Patient: 59 year old male, weighing 78.0 kg (171.6 pounds)
Reactions: White Blood Cell Count Decreased, Neutrophil Count Decreased
Suspect drug(s):
Infergen
Dosage: 15 ug daily subcutaneous
Indication: Hepatitis C
Start date: 2008-11-03
Ribavirin
Dosage: 600 mg 2 per day oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2007-03-01
Possible Infergen side effects / adverse reactions in male
Reported by a physician from United States on 2010-01-21
Patient: male, weighing 72.1 kg (158.7 pounds)
Reactions: Amaurosis Fugax, Cellulitis, Oedema Peripheral
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Infergen
Dosage: (15 pg qd)
Indication: Hepatitis C
Start date: 2009-10-19
Ribavirin
Dosage: 400 mg bid oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-10-19
Possible Infergen side effects / adverse reactions in female
Reported by a individual with unspecified qualification from United States on 2010-01-15
Patient: female, weighing 64.9 kg (142.7 pounds)
Reactions: White Blood Cell Count Decreased, Somnolence, Haemoglobin Decreased, Mental Impairment, Haematocrit Decreased, RED Blood Cell Count Decreased, Alopecia, Insomnia, Dizziness, Platelet Count Decreased, Feeling Abnormal, Asthenia
Suspect drug(s):
Infergen
Dosage: (15 ug qd subcutaneous)
Indication: Hepatitis C
Start date: 2009-11-17
Interferon
Dosage: (df
Indication: Hepatitis C
Ribavirin
Dosage: (df)
Indication: Hepatitis C
Ribavirin
Dosage: 400 mg bid oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-11-17
Other drugs received by patient: Sudafed 24 Hour; Loratadine; Zoloft; Biotin; Ambien
Possible Infergen side effects / adverse reactions in male
Reported by a physician from United States on 2010-01-11
Patient: male, weighing 105.7 kg (232.5 pounds)
Reactions: White Blood Cell Count Decreased, Adverse Event, Neutrophil Count Decreased
Suspect drug(s):
Infergen
Dosage: 15 ug qd subcutaneous, 9 ug qd
Indication: Hepatitis C
Start date: 2009-06-01
End date: 2009-06-01
Infergen
Dosage: 15 ug qd subcutaneous, 9 ug qd
Indication: Hepatitis C
Start date: 2009-06-16
Ribapak (Not Specified)
Dosage: 600 mg bid oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-06-01
Other drugs received by patient: Procrit / 00909301 /
Possible Infergen side effects / adverse reactions in female
Reported by a consumer/non-health professional from United States on 2010-01-11
Patient: female, weighing 56.7 kg (124.7 pounds)
Reactions: White Blood Cell Count Decreased, Pruritus, Hepatitis C, RED Blood Cell Count Decreased, Kidney Infection, Treatment Noncompliance
Adverse event resulted in: hospitalization
Suspect drug(s):
Infergen
Dosage: 15 ug qd, without medication 15 to 16 days plus approximately week, subcutaneous
Indication: Hepatitis C
Start date: 2008-09-17
End date: 2009-01-01
Ribapak (Not Specified)
Dosage: 1000 mg, 600 mg qam and 400 mg qpm, without medication 15 or 16 days plus approximately 1 week, oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2008-09-17
End date: 2009-01-01
Possible Infergen side effects / adverse reactions in female
Reported by a physician from United States on 2010-01-05
Patient: female, weighing 62.5 kg (137.5 pounds)
Reactions: Anaemia, Hypotension, Sepsis, Pancytopenia, Pyrexia, Asthenia
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Infergen
Dosage: (15 ug qd)
Indication: Hepatitis C
Start date: 2009-10-06
End date: 2009-12-01
Ribavirin
Dosage: (800 mg, daily oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-10-06
End date: 2009-12-01
Possible Infergen side effects / adverse reactions in male
Reported by a consumer/non-health professional from United States on 2009-12-22
Patient: male, weighing 74.8 kg (164.7 pounds)
Reactions: Weight Decreased, Nausea, Visual Field Defect, Paranasal Sinus Hypersecretion, Visual Acuity Reduced, Dysphonia, Sinusitis Noninfective, Retinal Exudates, Tendonitis, Decreased Appetite
Suspect drug(s):
Infergen
Dosage: (15 ?g qd 3x/week subcutaneous)
Indication: Hepatitis C
Start date: 2009-11-05
End date: 2009-01-01
Ribavirin
Dosage: 1200 mg, daily oral, (1000 mg [600 mg each morning and 400 mg each evening] oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-11-05
End date: 2009-01-01
Other drugs received by patient: Hydroxychloroquine Sulfate; Prednisone; Synthroid; Omeprazole; Oxycontin; Remeron; Wellbutrin; VIT D; Selenium
Possible Infergen side effects / adverse reactions in male
Reported by a health professional (non-physician/pharmacist) from United States on 2009-12-22
Patient: male
Reactions: Hospitalisation, Medication Error
Adverse event resulted in: hospitalization
Suspect drug(s):
Infergen
Lantus
Possible Infergen side effects / adverse reactions in female
Reported by a consumer/non-health professional from United States on 2009-12-22
Patient: female, weighing 77.0 kg (169.4 pounds)
Reactions: Impaired Work Ability, Visual Acuity Reduced, Headache, Erythema, Malaise, Fatigue, Feeling Hot, Depression, Papilloma Viral Infection, Crying, Migraine, Viral Infection, Nausea, Anaemia, Porphyria non-Acute, Anxiety, Therapeutic Response Decreased, Emotional Distress, Dehydration, Insomnia, Hypophagia, Thyroid Disorder, Hypothyroidism, Disturbance in Attention, Memory Impairment, Asthenia, Feeling Abnormal
Adverse event resulted in: hospitalization, disablity
Suspect drug(s):
Infergen
Dosage: (15 ug qd, df subcutaneous)
Indication: Hepatitis C
Start date: 2004-12-01
End date: 2005-11-01
Interferon
Dosage: (df subcutaneous)
Indication: Hepatitis C
Start date: 2003-05-01
End date: 2004-04-01
Interferon Alfa-2B
Dosage: (df subcutaneous), (df subcutaneous)
Indication: Hepatitis C
Start date: 2000-06-01
End date: 2000-12-01
Interferon Alfa-2B
Dosage: (df subcutaneous), (df subcutaneous)
Indication: Hepatitis C
Start date: 2001-05-01
End date: 2001-09-01
PEG-Intron
Dosage: (df subcutaneous)
Indication: Hepatitis C
Start date: 2002-01-01
End date: 2002-11-01
Pegasys
Dosage: (180 ug 1x/week subcutaneous)
Indication: Hepatitis C
Start date: 2009-02-01
Procrit
Dosage: (df)
Indication: Drug USE FOR Unknown Indication
Start date: 2004-12-01
End date: 2005-11-01
Ribavirin
Dosage: (5 df)
Indication: Hepatitis C
Start date: 2000-06-01
End date: 2000-12-01
Ribavirin
Dosage: (5 df)
Indication: Hepatitis C
Start date: 2001-05-01
End date: 2001-09-01
Ribavirin
Dosage: (5 df)
Indication: Hepatitis C
Start date: 2002-01-01
End date: 2002-11-01
Ribavirin
Dosage: (df)
Indication: Hepatitis C
Start date: 2003-05-01
End date: 2004-04-02
Ribavirin
Dosage: (400 mg qd)
Indication: Hepatitis C
Start date: 2004-12-01
End date: 2005-11-01
Ribavirin
Dosage: (1000 mg, 600 mg in the morning, 400 mg in the evening oral)
Administration route: Oral
Indication: Hepatitis C
Start date: 2009-02-01
Other drugs received by patient: Xanax; Milk Thistle (Unknown); Reglan / 00041901 / (Unknown)
Possible Infergen side effects / adverse reactions in 55 year old male
Reported by a pharmacist from United States on 2009-12-14
Patient: 55 year old male, weighing 98.0 kg (215.6 pounds)
Reactions: Upper Respiratory Tract Infection, NO Therapeutic Response, Transaminases Increased
Suspect drug(s):
Infergen
Dosage: 9 ug daily subcutaneous
Indication: Hepatitis C
PEG-Interferon A-2A (RO 25-8310) (Peg-Interferon Alfa 2A)
Dosage: 180 ug 1 per week subcutaneous
Indication: Hepatitis C
Ribavirin
Dosage: 600 mg 2 per day oral
Administration route: Oral
Indication: Hepatitis C
Other drugs received by patient: Amitriptyline Hydrochloride; Mirtazapine; Hydrochlorothiazide; Lisinopril; Omeprazole; Hydrocodone / Paracetamol (Hydrocodone / Paracetamol); Albuterol / Ipratropium (Ipratropium Bromide / Salbutamol); Promethezine HCL
Possible Infergen side effects / adverse reactions in 55 year old male
Reported by a physician from United States on 2009-12-14
Patient: 55 year old male, weighing 97.1 kg (213.6 pounds)
Reactions: Hepatitis C, Headache, Hepatitis, Anxiety, Irritability, Panic Attack, Fatigue, Arthralgia, Depression
Suspect drug(s):
Copegus
Dosage: 600 mg 2 per day oral
Administration route: Oral
Indication: Hepatitis C
Start date: 2005-03-26
End date: 2005-07-22
Infergen
Pegasys
Dosage: 180 ug 1 per week subcutaneous
Indication: Hepatitis C
Start date: 2005-03-26
End date: 2005-07-22
Possible Infergen side effects / adverse reactions in 56 year old male
Reported by a physician from United States on 2009-12-14
Patient: 56 year old male
Reactions: White Blood Cell Count Decreased, Hepatitis C, Haemoglobin Decreased, Dyspnoea Exertional, Fatigue, Dehydration, Dizziness, Neutropenia, Asthenia, Influenza Like Illness
Suspect drug(s):
Erythropoietin Alfa (Epoetin Alfa)
Indication: Haemoglobin Decreased
Filgrastim (Filgrastim)
Indication: Haemoglobin Decreased
Infergen
Dosage: 27 ug daily
Indication: Hepatitis C
Start date: 2005-12-25
PEG-Interferon A-2A (RO 25-8310)(peg-Interferon Alfa 2A)
Dosage: 180 ug 1 per week
Indication: Hepatitis C
PEG-Intron
Dosage: 1.5 ug/kg 1 per week
Indication: Hepatitis C
Ribavirin
Dosage: 1000 mg daily
Indication: Hepatitis C
Start date: 2005-12-25
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