Du Hep 100IU Injection is typically administered in conjunction with the hepatitis B vaccine It is derived from human blood plasma and is administered by injecting it into a large muscle such as the thigh or buttock The dosage will be determined by your doctor after assessing your condition It is important to administer the injection as soon as possible after identifying the risk of infection as delaying it may reduce its effectiveness However it is important to note that this medicine is not a vaccine and will not provide longterm protection against hepatitis B There is a possibility of experiencing side effects when using this medicine such as flushing gastrointestinal disturbances stomach pain and upset nausea vomiting headache dizziness and discomfort at the injection site If you experience any of these reactions or generally feel unwell it is advised to inform your doctor There may be methods to prevent or reduce these side effects Severe reactions to the injection are rare occurrences Before using this medicine it is essential to inform your doctor if you have kidney disease any blood clotting problems or if you have recently received or plan to receive a vaccination The safety of this medicine during pregnancy or breastfeeding is not yet established so it is recommended to seek advice from your doctor in these cases