INTRON A Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • anemia
  • decreased blood platelets
  • low levels of white blood cells
  • depression
  • abnormal liver function tests

If experienced, these tend to have a Less Severe expression i

  • dry mouth
  • hair loss
  • dizziness
  • low energy
  • flu-like symptoms
  • taste impairment
  • a skin rash
  • decreased appetite
  • weight loss
  • trouble breathing
  • nausea
  • vomiting
  • diarrhea
  • a feeling of pins and needles on skin
  • intense abdominal pain

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • a herpes simplex infection
  • decreased function of bone marrow
  • low levels of a type of white blood cell called neutrophils
  • a toxic effect on the central nervous system, which consists of the brain and spinal cord
  • a painful condition that affects the nerves in the legs and arms called peripheral neuropathy
  • low blood pressure
  • pneumonia

If experienced, these tend to have a Less Severe expression i

  • confusion
  • blurred vision
  • dry skin
  • leg cramps
  • difficulty sleeping
  • excessive sweating
  • anxious feelings
  • fast heartbeat

RARE side effects

If experienced, these tend to have a Severe expression i

  • sarcoidosis
  • overactive thyroid gland
  • a condition with low thyroid hormone levels
  • a type of blood disorder where the red blood cells burst called hemolytic anemia
  • low platelet count and bleeding from immune response
  • mental problems from taking the drug
  • suicidal thoughts
  • thoughts of hurting or killing others
  • a type of brain function problem called encephalopathy
  • detachment of the retina of the eye
  • a disorder of the retina of the eye
  • sudden blindness and pain upon moving the eye
  • a heart attack
  • angina, a type of chest pain
  • pulmonary hypertension
  • inflammation of the covering of the heart or pericardium
  • cardiomyopathy, a disease of the heart muscle
  • atrial fibrillation
  • extra heartbeats
  • slow heartbeat
  • a stroke
  • inflammation of the blood vessels
  • a blood clot
  • thrombotic thrombocytopenic purpura, a type of blood disorder
  • a type of lung condition called bronchiolitis obliterans
  • a type of inflammation of the lung called interstitial pneumonitis
  • a condition where there is formation of fibrous tissue in the lung called pulmonary fibrosis
  • x-ray results showing lung tissue changes
  • bronchospasm
  • liver failure
  • damage to the liver and inflammation
  • nephrotic syndrome, a type of kidney disorder
  • kidney failure
  • decreased kidney function
  • erythema multiforme, a type of allergic skin reaction
  • a skin disorder with blistering and peeling skin called toxic epidermal necrolysis
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • systemic lupus erythematosus, an autoimmune disease
  • rheumatoid arthritis
  • a condition with muscle tissue breakdown called rhabdomyolysis
  • muscle inflammation
  • hallucinations
  • high amount of bilirubin in the blood
  • a significant type of allergic reaction called anaphylaxis
  • a type of allergic reaction called angioedema
  • pancreatitis

If experienced, these tend to have a Less Severe expression i

  • high amount of triglyceride in the blood
  • aggressive behavior
  • optic disk edema
  • Raynaud's phenomenon, a condition where blood vessels constrict too much with coldness or stress
  • a tooth disease
  • canker sores
  • hives
  • muscle pain
  • difficulty concentrating
  • memory loss
  • fever
  • chills
  • puffy face from water retention
  • headache
  • generalized weakness

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Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.