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PegIntron Dosage

PegIntron Dosage for Hepatitis C in Children

For children, the healthcare provider will calculate an appropriate dose based on the child's body surface area, which is calculated using both height and weight. PegIntron is only approved for use in children (age 3 to 17) in combination with ribavirin capsules or liquid, which are taken twice a day. The usual length of treatment is 48 weeks (genotype 1) or 24 weeks (genotypes 2 or 3).

General Information on Using PegIntron

Some considerations to keep in mind during treatment with PegIntron include the following:
  • PegIntron comes as an injection that is administered subcutaneously (just under the skin) once a week for up to 24 weeks to 1 year (depending on various factors).
  • Use PegIntron on the same day each week.
  • This medication comes as injection pens or in vials. Either way, each vial or pen is for a single use only. Any unused portion must be discarded; it cannot be saved for later.
  • It is best to inject PegIntron into areas of the skin that have a layer of fat underneath. This includes the thigh, the outer upper arm, or stomach (away from the navel). Try to rotate the injection sites; do not inject in the same place twice in a row.
  • Make sure your healthcare provider teaches you exactly how to inject PegIntron. This includes:


    • How to prepare the skin
    • How to prepare and mix the injection
    • How to inject the medication
    • What to do with your used needles (this may vary, depending on the local laws and regulations).

If you are not comfortable with any part of the process, please let your healthcare provider know.

  • Your healthcare provider may recommend a lower dosage if you develop dangerous PegIntron side effects or if you have kidney problems. If the drug does not seem to be working for you after 12 weeks of treatment, your healthcare provider may recommend that you stop using PegIntron.


  • For the medication to work properly, it must be used as prescribed.
  • If you are unsure about anything related to your dosage or PegIntron dosing in general, please talk with your healthcare provider or pharmacist.

PegIntron Drug Information

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