Brand Names: US
Intron A; Intron-A
Brand Names: Canada
- Alpha interferons may cause or make diseases of the mind worse. Taking one’s own life, ideas of killing yourself or murder, low mood (depression), forceful actions, hallucinations, psychoses, and relapse of drug addiction have happened with use. Alpha interferons may make infections worse, cause blood flow problems or some autoimmune diseases. If you think your child has any of these health problems, call the doctor right away. Side effects such as low blood pressure, a fast heartbeat, and heart attacks have happened while taking alpha interferons. If your child has very bad signs or if signs of these health problems get worse, talk with the doctor about stopping this drug. Problems are most often fixed after stopping the drug.
What is this drug used for?
- It is used to treat hepatitis B and C infections.
- It may be given to your child for other reasons. Talk with the doctor.
What do I need to tell the doctor BEFORE my child takes this drug?
This is not a list of all drugs or health problems that interact with this drug.
Tell the doctor and pharmacist about all of your child’s drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for your child to take this drug with all of their drugs and health problems. Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.
- If your child has an allergy to this drug or any part of this drug.
- If your child is allergic to any drugs like this one or any other drugs, foods, or other substances. Tell the doctor about the allergy and what signs your child had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If your child has ever had any of these health problems: Autoimmune disease or liver problems.
- If your child has had a transplant.
What are some things I need to know or do while my child takes this drug?
- Tell dentists, surgeons, and other doctors that your child is using this drug.
- Have your child’s blood work checked often. Talk with your child’s doctor.
- Alcohol may interact with this drug. Be sure your child does not drink alcohol.
- Avoid giving your child other drugs and natural products that may slow your child’s actions.
- Have your child avoid tasks or actions that call for alertness until you see how this drug affects your child. These are things like riding a bike, playing sports, or using items such as scissors, lawnmowers, electric scooters, toy cars, or motorized vehicles.
- If your child has high blood sugar (diabetes), you will need to watch his/her blood sugar closely.
- Your child may have more chance of getting infections. Avoid crowds and people with infections, colds, or flu.
- Your child may bleed more easily. Make sure your child is careful and avoids injury. Be sure your child has a soft toothbrush.
- Take care of your child’s teeth. See a dentist often.
- If your child throws up, have your child rinse the mouth out well.
- This drug may cause eye problems that may lead to loss of eyesight or blindness. Tell the doctor if your child has eye problems or has had them in the past. Get your child eye exams as you were told by the doctor. Talk with the doctor.
- This drug may affect growth in children and teens in some cases. They may need regular growth checks. Talk with the doctor.
- It is not known if this drug will prevent liver failure or other liver problems like cancer. Talk with the doctor.
- This drug does not stop the spread of diseases like HIV or hepatitis that are passed through blood. Be sure needles and other things like toothbrushes or razors are not shared. Talk with the doctor.
If your child is or may be sexually active:
- This drug does not stop the spread of diseases like HIV or hepatitis that are passed through having sex. Be sure your child does not have any kind of sex without using a latex or polyurethane condom. Talk with the doctor.
If your child is pregnant or breast-feeding a baby:
- Talk with the doctor if your child is pregnant, becomes pregnant, or is breast-feeding a baby. You will need to talk about the benefits and risks of using this drug.
- This drug is made from human plasma (part of the blood) and may have viruses that may cause disease. This drug is screened, tested, and treated to lower the chance that it carries an infection. Talk with the doctor.
What are some side effects that I need to call my child’s doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your child’s doctor or get medical help right away if your child has any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- If your child shows signs of low mood (depression), thoughts of killing him/herself, nervousness, emotional ups and downs, thinking that is not normal, anxiety, or lack of interest in life.
- Signs of infection like fever, chills, very bad sore throat, ear or sinus pain, cough, more sputum or change in color of sputum, pain with passing urine, mouth sores, or wound that will not heal.
- Signs of a pancreas problem (pancreatitis) like very bad stomach pain, very bad back pain, or very bad upset stomach or throwing up.
- Signs of bleeding like throwing up blood or throw up that looks like coffee grounds; coughing up blood; blood in the urine; black, red, or tarry stools; bleeding from the gums; vaginal bleeding that is not normal; bruises without a reason or that get bigger; or any bleeding that is very bad or that you cannot stop.
- Signs of high blood sugar like confusion, feeling sleepy, more thirst, more hungry, passing urine more often, flushing, fast breathing, or breath that smells like fruit.
- Change in strength on 1 side is greater than the other, trouble speaking or thinking, change in balance, or blurred eyesight.
- Very bad dizziness or passing out.
- Slow heartbeat.
- A heartbeat that does not feel normal.
- Chest pain or pressure or a fast heartbeat.
- Shortness of breath, a big weight gain, swelling in the arms or legs.
- Very bad headache.
- Very bad belly pain.
- Feeling very tired or weak.
- A burning, numbness, or tingling feeling that is not normal.
- Not able to focus.
- Memory problems or loss.
- Change in thinking clearly and with logic.
- Trouble walking.
- Change in balance.
- Not able to pass urine or change in how much urine is passed.
- Not able to handle heat or cold.
- A change in weight without trying.
- Change in look of teeth or gums.
- Change in eyesight, eye pain, or very bad eye irritation.
- Very bad and sometimes deadly liver problems have happened with this drug. Call your child’s doctor right away if your child has signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Very bad and sometimes deadly lung problems have happened with this drug. Call the doctor right away if your child has lung or breathing problems like trouble breathing, shortness of breath, or a cough that is new or worse.
- A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away, and sometimes death. Get medical help right away if your child has signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in the mouth, throat, nose, or eyes.
What are some other side effects of this drug?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your child’s doctor or get medical help if any of these side effects or any other side effects bother your child or do not go away:
These are not all of the side effects that may occur. If you have questions about side effects, call your child’s doctor. Call your child’s doctor for medical advice about side effects.
You may report side effects to your national health agency.
- Feeling sleepy.
- Change in taste.
- Weight loss.
- Belly pain.
- Hard stools (constipation).
- Flu-like signs. These include headache, weakness, fever, shakes, aches, pains, and sweating. Mild pain drugs may help.
- Dry mouth.
- Upset stomach or throwing up.
- Loose stools (diarrhea).
- Not hungry.
- Irritation where the shot is given.
- Hair loss.
- Not able to sleep.
How is this drug best given?
Give this drug as ordered by your child’s doctor. Read and follow the dosing on the label closely.
- To gain the most benefit, do not miss giving your child doses.
- Give as you have been told, even if your child feels well.
- It is given as a shot.
- Your child’s doctor may teach you how to give the shot.
- Follow how to give this drug as you have been told by your child’s doctor.
- Do not use if the solution is cloudy, leaking, or has particles.
- Do not use if solution changes color.
- Wash your hands before and after use.
- Throw away needles in a needle/sharp disposal box. Do not reuse needles or other items. When the box is full, follow all local rules for getting rid of it. Talk with a doctor or pharmacist if you have any questions.
- Have your child drink lots of noncaffeine liquids every day unless told to drink less liquid by your child’s doctor.
- This drug must be mixed with sterile water before using. The sterile water that comes with this drug is meant for one use only. Throw away any part of the sterile water that is not used after one use.
What do I do if my child misses a dose?
- Give a missed dose as soon as you think about it.
- If it is close to the time for your child’s next dose, skip the missed dose and go back to your child’s normal time.
- Do not give 2 doses at the same time or extra doses.
How do I store and/or throw out this drug?
- Follow how to store the shot closely. Talk with the doctor.
- Keep all drugs out of the reach of children and pets.
- Check with your pharmacist about how to throw out unused drugs.
General drug facts
- If your child’s symptoms or health problems do not get better or if they become worse, call your child’s doctor.
- Do not share your child’s drug with others and do not give anyone else’s drug to your child.
- Keep a list of all your child’s drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child’s doctor.
- Talk with your child’s doctor before giving your child any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your child’s doctor, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Consumer Information Use and Disclaimer
This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.
Last Reviewed Date
Copyright © 2014 Clinical Drug Information, LLC and Lexi-Comp, Inc.
Last updated: April 1, 2015