Pediatric Medication

Brand Names: Canada



  • This drug may cause harm to the unborn baby if your child takes it during pregnancy.
  • Do not let your child take this drug if she is pregnant. A pregnancy test will be done to show that your child is NOT pregnant before starting this drug.
  • Birth control pills and other hormone-based birth control may not work as well to prevent pregnancy. Be sure your child uses some other kind of birth control also, like a condom, when taking this drug.
  • If your child is pregnant or gets pregnant while taking this drug, call the doctor right away.
  • Blood clots have happened with this drug. Sometimes, these blood clots have been deadly. Call the doctor right away if your child has chest, arm, back, neck, or jaw pain or pressure; coughing up blood; numbness or weakness on 1 side of the body, trouble speaking or thinking, change in balance, or change in eyesight; shortness of breath; or swelling, warmth, or pain in a leg or arm.
  • 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.
  • Raised pressure in the brain has happened with this drug. This can cause long lasting loss of eyesight and sometimes death. Call the doctor right away if your child has a bad headache, dizziness, upset stomach or throwing up, or seizures. Call the doctor right away if your child has a change in strength on 1 side that is greater than the other, trouble speaking or thinking, change in balance, or blurred eyesight or other change in eyesight.

What is this drug used for?

  • It is used to treat swelling attacks in people with hereditary angioedema (HAE).
  • It may be given to you for other reasons. Talk with the doctor.

What do I need to tell the doctor BEFORE my child takes this drug?

  • 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 any of these health problems: An androgen-dependent tumor, genital cancer, heart disease, kidney disease, liver disease, or porphyria.
  • If your child has blood clots or has had blood clots in the past.
  • If your child has unexplained vaginal bleeding.

If your child is breast-feeding a baby:

  • Be sure your child does not breast-feed a baby while taking 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 his/her drugs and health problems. Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.

What are some things I need to know or do while my child takes this drug?

  • Tell all of your child’s health care providers that your child is taking this drug. This includes your child’s doctors, nurses, pharmacists, and dentists.
  • If your child has high blood sugar (diabetes), you will need to watch his/her blood sugar closely.
  • Have your child’s blood pressure checked often. Talk with your child’s doctor.
  • Have blood work checked as you have been told by the doctor. Talk with the doctor.
  • This drug may affect certain lab tests. Tell all of your child’s health care providers and lab workers that your child takes this drug.
  • Do not give this drug to your child for longer than you were told by the doctor.
  • This drug may affect how much of some other drugs are in the body. If your child is taking other drugs, talk with the doctor. Your child may need to have blood work checked more closely while taking this drug with other drugs.
  • This drug may lower sperm counts in males. 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, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Shortness of breath, a big weight gain, or swelling in the arms or legs.
  • Very bad dizziness or passing out.
  • Very nervous and excitable.
  • Mood changes.
  • A lump in the breast or breast soreness.

If your child has menstrual periods:

  • For females, no period.

If your child is or may be sexually active:

  • Orgasm with less or no semen.

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:
  • Flushing.
  • Hair loss.
  • Emotional ups and downs.
  • Weight gain.
  • Pimples (acne).
  • For females, a deep voice, facial hair, pimples, or period changes.
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.

How is this drug best given?

Give this drug as ordered by your child’s doctor. Read all information given to you. Follow all instructions closely.
  • Give this drug with or without food but give it the same way each time. Always give with food or always give on an empty stomach

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?

  • Store at room temperature.
  • Protect from light.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.

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 doctor, nurse, 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.

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