Were you looking for information about Pegasys? Pegasis is a common misspelling of Pegasys.
By boosting the body's ability to fight viruses, Pegasys® (peginterferon alfa-2a) can help treat chronic hepatitis B and C infections. It comes as an injection that is given just under the skin (subcutaneously) once a week for 24 to 48 weeks.
Although some people tolerate this medicine well, most people will develop some type of side effect with this drug, such as fever, headaches, or muscle aches. You may not be able to use this product if you have certain medical conditions, such as diabetes, depression, or lung problems.
(For more information on this medicine, click Pegasys. This full-length article offers a complete overview of this medication, including how it works, specific uses, and general dosing guidelines. You can also click any of the links in the box to the right for specific information.)