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Infergen (Interferon Alfacon-1) - Side Effects & Adverse Reactions Reported to FDA

 



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)
     White Blood Cell Count Decreased (20)Nausea (18)Fatigue (18)more >>

Cases resulting in a serious event (61)
     White Blood Cell Count Decreased (20)Nausea (18)Fatigue (18)more >>

Cases resulting in death (2)
     White Blood Cell Count Decreased (1)DRY Skin (1)Rash (1)more >>

Cases resulting in life threatening events (7)
     Anaemia (3)Cellulitis (2)Hypotension (2)more >>

Cases resulting in hospitalization (28)
     Anaemia (11)Asthenia (8)White Blood Cell Count Decreased (7)more >>

Cases resulting in disability (3)
     Nausea (2)Impaired Work Ability (2)Depression (2)more >>

Cases resulting in other serious reactions (37)
     Nausea (14)White Blood Cell Count Decreased (12)Fatigue (12)more >>

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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