How to Use REDIPEN™

Your doctor will prescribe your dose of PEG-INTRON® based on your weight. Whether in REDIPEN™ or vial and syringe form, PEG-INTRON® is given once a week for one year. Always follow your doctor's instructions.

You should be completely comfortable with how to prepare the PEG-INTRON® REDIPEN™, how to measure the dose you take, and how to inject yourself before you use the REDIPEN™ for the first time. Your health care provider will train you in the proper techniques for doing this.

Preparing and injecting the PEG-INTRON REDIPEN™ dose:

Using the REDIPEN™, you:

1. Mix the medication by pushing down on the pen to combine the PEG-INTRON® powder with sterile water, both stored in the pen
2. Dial to accurately select your predetermined individualized weight-based dose by turning the dosing button until the dosing button aligns with the dosing tab's solid line, and
3. Deliver the medication by pushing the dosing button completely and holding for five seconds. The five-second period helps ensure that you inject the proper amount of medication.

Please see Using the REDIPEN™ for complete instructions on self-administration.

You will also need to check the injection site 2 hours after the injection for signs of inflammation, such as redness, swelling, or tenderness. If signs of inflammation don't clear up in a few days, notify your health care professional.

For an overview of taking PEG-INTRON® medication, see How PEG-INTRON Is Taken.