This is an index of side effect / adverse reaction reports (a.k.a. adverse event reports) related to Intron A (Interferon Alfa-2B) and submitted to the FDA during the sample period of about a year. The information is not vetted and should not be considered as verified clinical evidence.
Reports by Event Outcome
All Cases (186)
Death (9)
Life Threatening Events (5)
Disability (6)
Reports by Reaction Type
Nausea (32),
Fatigue (20),
Asthenia (16),
Headache (15),
Neutropenia (13),
Chills (12),
Vomiting (12),
Drug Ineffective (11),
Dehydration (11),
Neutrophil Count Decreased (11),
Decreased Appetite (10),
Liver Function Test Abnormal (9)
Below are a few examples of reports where side effects / adverse reactions may be related to Intron A (Interferon Alfa-2B). For a complete list or a specific selection of reports, please use the links above.
Possible Intron A side effects in
Reported by a health professional (non-physician/pharmacist) from Australia on 2012-08-24
Patient:
Reactions: Salmonella Sepsis, Cardiac Flutter, Liver Function Test Abnormal, Lower Respiratory Tract Infection, Post Procedural Infection
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Dosage: 40 million iu, unknown
Indication: Malignant Melanoma
Start date: 2011-08-29
Intron A
Dosage: unk unk, unknown
Start date: 2011-10-16
Intron A
Dosage: 22.6 million iu, tiw
Start date: 2011-10-03
Intron A
Dosage: 30 million iu, unknown
Intron A
Dosage: 22.6 million iu, tiw
Start date: 2011-10-06
End date: 2011-12-01
Intron A
Dosage: 22.6 million iu, tiw
Start date: 2012-01-16
Intron A
Dosage: 22.5 million iu, tiw
Start date: 2012-05-07
End date: 2012-07-16
Other drugs received by patient: Acetaminophen; Micardis; Amlodipine Besylate; Amlodipine Besylate; Bismuth Subnitrate (+) Calcium Carbonate (+) Phenobarbital (+) Sodium; Ondansetron
Possible Intron A side effects in
Reported by a physician from Spain on 2012-08-23
Patient:
Reactions: Drug Ineffective, Drug Rash With Eosinophilia and Systemic Symptoms
Drug(s) suspected as cause:
Intron A
Dosage: unk
Start date: 1999-01-01
Intron A
Dosage: 3 mu, tiw
Start date: 1992-09-01
End date: 1993-03-01
Intron A
Dosage: unk
Start date: 1996-02-01
End date: 1996-05-01
PEG-Intron
Dosage: 120 microgram, qw
Indication: Hepatitis C
Start date: 2012-02-01
End date: 2012-03-06
Ribavirin
Dosage: unk
Start date: 1999-01-01
Ribavirin
Dosage: 1200 mg, qd
Start date: 2012-02-01
End date: 2012-03-13
Ribavirin
Dosage: 1200 mg, qd
Start date: 1994-03-01
Ribavirin
Dosage: unk
Start date: 1996-02-01
End date: 1996-05-01
Telaprevir
Dosage: 750 mg, q8h
Indication: Hepatitis C
Start date: 2012-02-01
End date: 2012-03-10
Other drugs received by patient: Trandolapril; Verapamil; Moxonidine; Telmisartan
Possible Intron A side effects in
Reported by a health professional (non-physician/pharmacist) from United States on 2012-08-23
Patient:
Reactions: Overdose, Hepatitis C RNA Increased, Incorrect Storage of Drug
Drug(s) suspected as cause:
Intron A
Dosage: 5 mg, qw
Indication: Hepatitis C
Start date: 2001-01-01
End date: 2012-01-01
PEG-Intron
Telaprevir
Possible Intron A side effects in
Reported by a physician from United States on 2012-08-23
Patient:
Reactions: Malaise, Fatigue, Renal Disorder, Blood Creatinine Increased, Loss of Consciousness
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Other drugs received by patient: Diovan; Amlodipine; Allopurinol; Lipitor; Renvela
Possible Intron A side effects in
Reported by a consumer/non-health professional from United States on 2012-08-23
Patient:
Reactions: Drug Ineffective, Retinal Oedema, Visual Impairment, Oedema Peripheral, Malignant Melanoma, Crying
Drug(s) suspected as cause:
Intron A
Dosage: 3 df, qd
Indication: Hepatitis C
Start date: 1992-08-07
End date: 1993-08-06
Rebetol
Dosage: unk
Administration route: Oral
Start date: 2012-06-21
Rebetol
Dosage: unk
Administration route: Oral
Indication: Hepatitis C
Start date: 1992-08-07
End date: 1993-08-06
Victrelis
Dosage: unk
Indication: Hepatitis C
Start date: 2012-07-20
Other drugs received by patient: Pegasys
Possible Intron A side effects in
Reported by a physician from Spain on 2012-08-22
Patient:
Reactions: Drug Ineffective, Pyrexia, Drug Rash With Eosinophilia and Systemic Symptoms
Drug(s) suspected as cause:
Intron A
Dosage: unk
Start date: 1999-01-01
Intron A
Dosage: 3 mu, tiw
Start date: 1992-09-01
End date: 1993-03-01
Intron A
Dosage: unk
Start date: 1996-02-01
End date: 1996-05-01
PEG-Intron
Dosage: 120 microgram, qw
Indication: Hepatitis C
Start date: 2012-02-01
End date: 2012-03-06
Ribavirin
Dosage: 1200 mg, qd
Start date: 2012-02-01
End date: 2012-03-13
Ribavirin
Dosage: 1200 mg, qd
Start date: 1994-03-01
Ribavirin
Dosage: unk
Start date: 1996-02-01
End date: 1996-05-01
Ribavirin
Dosage: unk
Start date: 1999-01-01
Telaprevir
Dosage: 750 mg, q8h
Indication: Hepatitis C
Start date: 2012-02-01
End date: 2012-03-10
Other drugs received by patient: Verapamil; Trandolapril; Moxonidine; Telmisartan
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-08-21
Patient: male, weighing 114.8 kg (252.5 pounds)
Reactions: Cellulitis
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in female
Reported by a individual with unspecified qualification from United States on 2012-08-16
Patient: female, weighing 77.0 kg (169.4 pounds)
Reactions: Muscle Disorder
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a consumer/non-health professional from United States on 2012-08-15
Patient:
Reactions: Malignant Melanoma
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a health professional (non-physician/pharmacist) from United States on 2012-08-15
Patient:
Reactions: Treatment Failure
Drug(s) suspected as cause:
Intron A
Dosage: unk
Start date: 2002-01-01
PEG-Intron
Dosage: unk
Indication: Hepatitis C
Start date: 2005-01-01
Rebetol
Dosage: unk
Administration route: Oral
Indication: Hepatitis C
Start date: 2005-01-01
Possible Intron A side effects in
Reported by a physician from United States on 2012-08-13
Patient:
Reactions: Vomiting, Drug Ineffective, Pain in Extremity, Somnolence, Ulcer, Diarrhoea, Blood Potassium Decreased, Dehydration
Drug(s) suspected as cause:
Intron A
Dosage: unk unk, q3w
Indication: Hepatitis C
Start date: 2001-09-28
End date: 2002-09-27
Rebetol
Dosage: unk
Indication: Hepatitis C
Start date: 2001-09-28
End date: 2002-09-27
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-08-13
Patient: male, weighing 115.0 kg (253.0 pounds)
Reactions: Blood Creatine Phosphokinase Increased
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a pharmacist from United States on 2012-08-10
Patient:
Reactions: Chills, Tremor
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-08-07
Patient: male, weighing 96.3 kg (211.8 pounds)
Reactions: Blood Creatine Phosphokinase Increased
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a pharmacist from United States on 2012-08-07
Patient:
Reactions: Incorrect Storage of Drug
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a health professional (non-physician/pharmacist) from Australia on 2012-08-07
Patient:
Reactions: Death, Poor Quality Sleep, Fatigue, Skin Lesion, Rash, Disease Progression, Decreased Appetite
Adverse event resulted in: death
Drug(s) suspected as cause:
Intron A
Other drugs received by patient: Methotrexate
Possible Intron A side effects in
Reported by a consumer/non-health professional from United Kingdom on 2012-08-06
Patient:
Reactions: Abortion Spontaneous, Exposure VIA Father
Drug(s) suspected as cause:
Intron A
Indication: Product Used FOR Unknown Indication
Ribavirin
Indication: Product Used FOR Unknown Indication
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-08-03
Patient: male, weighing 68.0 kg (149.6 pounds)
Reactions: Blood Phosphorus Decreased, Blood Potassium Decreased
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-08-03
Patient: male, weighing 113.0 kg (248.6 pounds)
Reactions: Blood Creatine Phosphokinase Increased
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-08-02
Patient: male, weighing 76.7 kg (168.7 pounds)
Reactions: Vomiting, Diarrhoea, Nausea, Therapy Cessation, Dehydration
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in male
Reported by a physician from United States on 2012-08-02
Patient: male, weighing 85.2 kg (187.4 pounds)
Reactions: Blood Phosphorus Decreased
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a health professional (non-physician/pharmacist) from Australia on 2012-08-01
Patient:
Reactions: Death, Poor Quality Sleep, Fatigue, Skin Lesion, Rash, Decreased Appetite, Disease Progression
Adverse event resulted in: death
Drug(s) suspected as cause:
Intron A
Other drugs received by patient: Methotrexate
Possible Intron A side effects in male
Reported by a physician from United States on 2012-07-31
Patient: male, weighing 112.0 kg (246.4 pounds)
Reactions: Weight Decreased, Abdominal Pain, Nausea, Chills, Dysstasia, Fatigue, Diarrhoea, Dehydration, Dizziness, Fluid Intake Reduced
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a physician from United States on 2012-07-31
Patient:
Reactions: Off Label Use, Injection Site Discomfort, Decreased Appetite
Drug(s) suspected as cause:
Intron A
Dosage: unk unk, tiw
Indication: Extranodal Marginal Zone B-Cell Lymphoma (Malt Type)
Intron A
Dosage: 1.5 million iu, qw
Proparacaine Hydrochloride
Dosage: unk, qw
Administration route: Topical
Proparacaine Hydrochloride
Dosage: unk unk, tiw
Administration route: Topical
Indication: Induction of Anaesthesia
Possible Intron A side effects in female
Reported by a individual with unspecified qualification from United States on 2012-07-30
Patient: female, weighing 75.0 kg (165.0 pounds)
Reactions: Fatigue, Nausea, Abnormal Behaviour, Cognitive Disorder, Memory Impairment, Neutropenia
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a consumer/non-health professional from United States on 2012-07-28
Patient:
Reactions: Anaemia, Vaginal Haemorrhage
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in male
Reported by a individual with unspecified qualification from United States on 2012-07-27
Patient: male, weighing 68.0 kg (149.6 pounds)
Reactions: Blood Phosphorus Decreased, Blood Potassium Decreased
Drug(s) suspected as cause:
Intron A
Other drugs received by patient: Xanax; Multi-Vitamin; Oxycodone HCL; Phenergan HCL
Possible Intron A side effects in female
Reported by a physician from United States on 2012-07-26
Patient: female, weighing 83.6 kg (183.9 pounds)
Reactions: Vomiting, Diarrhoea, Nausea
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Possible Intron A side effects in
Reported by a physician from United States on 2012-07-26
Patient:
Reactions: Pancreatitis
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Intron A
Rebetol
Victrelis
Dosage: 800 mg, tid
Administration route: Oral
Indication: Hepatitis C
End date: 2012-07-23
Possible Intron A side effects in
Reported by a health professional (non-physician/pharmacist) from Australia on 2012-07-24
Patient:
Reactions: Poor Quality Sleep, Death, Fatigue, Skin Lesion, Rash, Decreased Appetite
Adverse event resulted in: death
Drug(s) suspected as cause:
Intron A
Other drugs received by patient: Methotrexate
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