Hepatitis C Home > Pegasys Administration

Available in the form of an injection, Pegasys® (peginterferon alfa-2a) is prescribed to treat chronic hepatitis B or C infections. If you are prescribed this drug, you may be looking for more information on administration techniques for how to properly use Pegasys injections.
Pegasys comes in a vial, a prefilled syringe, or an autoinjector. All forms are for a single use only. The injections are given just under the skin once a week for 24 to 48 weeks. It is best to inject the medicine into areas of the skin that have a layer of fat underneath. This includes the thigh or abdomen (stomach), away from the navel (belly button). 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 administer this medicine.
(Click Pegasys Dosage for more details on administration tips for Pegasys injections. This Web selection also covers specific dosing guidelines and describes how your healthcare provider will determine your dose.)
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Last reviewed by: Kristi Monson, PharmD;
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