Feelings of sickness, vomiting and loss of appetite. These are uncommon. Your doctor can prescribe medicine to help. Less common side effects Skin iritation may occur at the injection site. This can be reduced by giving the injections in different places.
Dizziness sometimes occurs.
It is important to report this to your doctor. Rarely, interferon may cause feelings of depression. Discuss these symptoms with your doctor if they occur. Occasionally hair may be lost or may thin. The effect is temporary and the hair will grow back once the treatment is finished.