Side Effects
Side Effects
These are not all the possible side effects you may feel when taking FIRAZYR. If you experience any side effects not listed here, contact your healthcare professional.
Side effects may include:
- burning, redness, swelling, pain, itching, or warmth at the injection site
- abdominal pain or distension
- diarrhea
- nausea
- fever
- upper respiratory tract infection (common cold)
- inflammation of the sinuses
- nasal congestion
- dizziness
- headache
- worsening or recurrence of HAE
- rash
- hives
- dry mouth
- fatigue
FIRAZYR may affect certain liver enzyme levels in your blood. Your doctor will decide when to perform blood tests and will interpret the results.
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Symptom/effect |
Talk with your healthcare professional |
Stop taking drug and seek immediate medical help |
|
|
Only if severe |
In all cases |
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|
Uncommon |
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|
Arrhythmia (abnormal heart rhythms): rapid, slow, or irregular heartbeat |
X |
||
|
Urinary Tract Infection (UTI) (infection in urinary system including kidneys, ureters, bladder, and urethra): Pain or burning sensation while urinating, frequent urination, blood in urine, pain in the pelvis, strong smelling urine, cloudy urine |
X |
||
|
Unknown |
|||
|
Heart and non-heart related chest pain |
X |
||
|
Myocardial infarction (heart attack): pressure or squeezing pain between the shoulder blades, in the chest, jaw, left arm or upper abdomen, shortness of breath, dizziness, fatigue, light-headedness, clammy skin, sweating, indigestion, anxiety, feeling faint, and possible irregular heartbeat |
X |
||
|
Increased levels of liver enzymes (ALT, AST) in the blood: dark urine, fatigue, loss of appetite, yellowing of the skin or eyes |
X |
||
Symptom/effect
Uncommon
Arrhythmia (abnormal heart rhythms): rapid, slow, or irregular heartbeat
Talk with your healthcare professional
Urinary Tract Infection (UTI) (infection in urinary system including kidneys, ureters, bladder, and urethra): Pain or burning sensation while urinating, frequent urination, blood in urine, pain in the pelvis, strong smelling urine, cloudy urine
Talk with your healthcare professional
Unknown
Heart and non-heart related chest pain
Talk with your healthcare professional
Myocardial infarction (heart attack): pressure or squeezing pain between the shoulder blades, in the chest, jaw, left arm or upper abdomen, shortness of breath, dizziness, fatigue, light-headedness, clammy skin, sweating, indigestion, anxiety, feeling faint, and possible irregular heartbeat
Talk with your healthcare professional
Increased levels of liver enzymes (ALT, AST) in the blood: dark urine, fatigue, loss of appetite, yellowing of the skin or eyes
Talk with your healthcare professional
If you have a troublesome symptom or side effect that is not listed here or becomes bad enough to interfere with your daily activities, talk to your healthcare professional.
Please speak to your healthcare professional for more information.
Reporting Suspected Side Effects
You can report any suspected side effects associated with the use of health products to Health Canada by:
- Visiting the Web page on Adverse Reaction Reporting (www.canada.ca/en/health-canada/services/drugs-health-products/medeffect-canada/adverse-reaction-reporting.html) for information on how to report online, by mail, or by fax;
- Calling toll-free at 1-866-234-2345.
NOTE: Contact your health professional if you need information about how to manage your side effects. The Canada Vigilance Program does not provide medical advice.