ElHep 100IU Injection is administered in conjunction with the hepatitis B vaccine It is derived from human blood plasma and is administered via injection into a large muscle such as the thigh or buttock Your doctor will determine the appropriate dosage based on your condition It is important to administer the injection as soon as the risk of infection is identified as delay may reduce its effectiveness However it is essential to note that this medicine is not a vaccine and does not offer longterm protection against hepatitis B Possible side effects of this medicine include flushing gastrointestinal disturbances stomach pain upset stomach nausea vomiting headache dizziness and mild pain at the injection site If you experience any of these reactions or generally feel unwell it is important to inform your doctor There may be ways to prevent or alleviate these side effects Serious reactions to the injection are rare Before using ElHep 100IU Injection it is important to inform your doctor if you have kidney disease any blood clotting issues or if you have recently received or plan to receive a vaccination The safety of this medicine during pregnancy or breastfeeding is not fully known so it is advisable to seek advice from your doctor in such cases