Pegasys is a prescription drug, available for use as Injection. It is primarily used for the treatment of Hepatitis B. Secondary and off-label uses of Pegasys have also been mentioned below.

The optimal dosage of Pegasys is largely dependent on the individual's body weight, medical history, gender and age. Besides the medical condition it is advised for, the route of administration also plays an important role in determining the correct drug dosage. Refer to the dosage section for a detailed discussion.

The most common side effects of Pegasys are Excessive sweating, Joint pain, Flu-like Symptoms. While these are the most often observed Pegasys side effects, there are can be others also. These have been listed below. Usually, these side effects of Pegasys go away soon, and do not persist beyond the duration of the treatment. If, however, they worsen or do not go away, please speak with your physician.

Furthermore, you should know that effect of Pegasys is Moderate for pregnant women and Moderate for women who are breastfeeding. Further, the section on Pegasys related warnings talks about Pegasys's effects on the liver, heart and kidney.

Pegasys is contraindicated in people with pre-existing medical conditions like Liver Disease, Kidney Disease, Anemia as it can result in adverse effects. Other contraindications of Pegasys have been discussed in the sections ahead.

Drug interactions for Pegasys have been reported in the medical literature. A complete list of these interactions is given below.

In addition to the above precautions for Pegasys, it is important to know that it is not safe while driving, and is not habit-forming.