Actimmune Consumer (continued)
Flu-like symptoms such as headache, tiredness, fever, chills, and muscle aches may occur, especially when you first start this medication. These symptoms usually last about 1 day after the injection and improve or go away after a few months of continued use. You can reduce these side effects by injecting this medicine at bedtime and using a fever reducer/pain reliever such as acetaminophen before or after each dose. Consult your doctor or pharmacist for more information.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: lightheadedness, fainting, mental/mood changes (e.g., confusion, depression), shaking (tremors), trouble walking, slow/fast/irregular heartbeat, shortness of breath, swelling of the ankles/feet, increasing tiredness, joint pain, butterfly-shaped rash on the face, easy bleeding/bruising, persistent nausea/vomiting, seizures, signs of infection (e.g., fever, persistent sore throat), stomach/abdominal pain, black/tarry stools, dark urine, change in the amount of urine, yellowing eyes/skin.
Get medical help right away if any of these rare but very serious side effects occur: chest/jaw/left arm pain, weakness on one side of the body, slurred speech, sudden vision changes, pain/redness/swelling of the arms/legs, calf pain/swelling that is warm to the touch, coughing up blood.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the Actimmune (interferon gamma 1 b) Side Effects Center for a complete guide to possible side effects »
PRECAUTIONS: Before using interferon, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart disease (e.g., angina, irregular heartbeat, congestive heart failure), liver disease, seizure disorder, blood cell disorders (e.g., anemia, neutropenia, thrombocytopenia).
Children, especially those younger than 1 year, may be at greater risk for effects on the liver while using this drug. The manufacturer recommends regular laboratory tests (liver function tests), especially in children younger than 1 year.
This medication is not recommended for use during pregnancy. Consult your doctor for more details.
It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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