Hepatitis B Injection is normally given along with the hepatitis B vaccine. It comes from human blood plasma and is given by an injection into a large muscle such as your thigh or buttock. Your doctor will inject the prescribed dose after analyzing your condition. It should be given as soon as possible after the risk of infection is identified. If it is delayed too long, it may not be effective. This medicine is not a vaccine and will not provide long-term protection from hepatitis B.
This medicine may sometimes cause side effects like flushing, gastrointestinal disturbance (stomach pain and upset, nausea, vomiting), headache, dizziness, and injection site reactions (pain, swelling, and redness). If you get any of these, or other reactions, or just feel unwell, you should tell your doctor.