Generic Name: hepatitis b vaccine (Intramuscular route)
hep-a-TYE-tis B VAX-een re-KOM-bin-ant
Commonly used brand name(s)
In the U.S.
- Engerix-B Pediatric
- Recombivax HB
- Recombivax HB Pediatric/Adolescent
Available Dosage Forms:
Therapeutic Class: Vaccine
Uses For Engerix-B
Hepatitis B vaccine recombinant is used to prevent infection by the hepatitis B virus. The vaccine works by causing your body to produce its own protection (antibodies) against the disease.
Hepatitis B vaccine recombinant is made without any human blood or blood products or any other substances of human origin. It cannot give you the hepatitis B virus (HBV) or the human immunodeficiency virus (HIV).
HBV infection is a major cause of serious liver diseases, such as hepatitis and cirrhosis, and a type of liver cancer called primary hepatocellular carcinoma.
Pregnant women who have hepatitis B infection or are carriers of hepatitis B virus can give the disease to their babies when they are born. These babies often suffer serious long-term illnesses from the disease.
Immunization against hepatitis B disease is recommended for all newborn babies, infants, children, and adolescents up to 19 years of age. It is also recommended for adults who live in areas that have a high rate of hepatitis B disease or who may be at increased risk of infection from hepatitis B virus. These adults include:
- Sexually active homosexual and bisexual males, including those with HIV infection.
- Sexually active heterosexual persons with multiple partners.
- Persons who may be exposed to the virus by means of blood, blood products, or human bites, such as health care workers, employees in medical facilities, patients and staff of live-in facilities and daycare programs for the developmentally disabled, morticians and embalmers, police and fire department personnel, and military personnel.
- Persons who have kidney disease or who undergo blood dialysis for kidney disease.
- Persons with blood clotting disorders who receive transfusions of clotting-factor concentrates.
- Household and sexual contacts of HBV carriers.
- Persons in areas with high risk of HBV infection [in the population], such as Alaskan Eskimos, Pacific Islanders, Haitian and Indochinese immigrants, and refugees from areas that have a high rate of hepatitis B disease; persons accepting orphans or adoptees from these areas; and travelers to these areas.
- Persons who use illegal injection drugs.
This vaccine is available only from your doctor or other authorized health care professional.
Before Using Engerix-B
In deciding to use a vaccine, the risks of taking the vaccine must be weighed against the good it will do. This is a decision you and your doctor will make. For this vaccine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of hepatitis B vaccine recombinant in children.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of hepatitis B vaccine recombinant in the elderly.
|All Trimesters||C||Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.|
Studies in women suggest that this medication poses minimal risk to the infant when used during breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of this vaccine. Make sure you tell your doctor if you have any other medical problems, especially:
- Allergy to yeast—Should not be used in patients with this condition.
- Bleeding problems (e.g., hemophilia)—Use with caution. May have an increased risk of bleeding at the injection site.
- Multiple sclerosis—Use with caution. May make this condition worse.
- Severe illness with a fever—Your dose may need to be given at a later time.
- Weak immune system from a disease or medicine—May not work as well in patients with this condition.
Proper Use of hepatitis b vaccine recombinant
This section provides information on the proper use of a number of products that contain hepatitis b vaccine recombinant. It may not be specific to Engerix-B. Please read with care.
A nurse or other trained health professional will give you this vaccine. This vaccine is given as a shot into one of your muscles. If you have bleeding problems such as hemophilia, the vaccine may be given as a shot under your skin.
This vaccine is usually given as 3 doses. After the first dose, two more doses are given 1 month and 6 months after the first dose, unless your doctor tells you otherwise.
Precautions While Using Engerix-B
It is very important that you or your child return to your doctor’s office at the right time for the second and third dose. Be sure to notify your doctor of any unwanted effects that occur after you or your child receive this vaccine.
This vaccine may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor right away if you or your child have a rash, itching, swelling of the tongue and throat, or trouble breathing after you get the injection.
Tell your doctor if you or your child are allergic to latex. The needle cover and the rubber plunger of the prefilled syringe contain dry natural latex rubber, which may cause an allergic reaction in people with a latex allergy.
This vaccine may not protect you against hepatitis B infection if you are already infected with the virus at the time you receive the shot.
Engerix-B Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor or nurse immediately if any of the following side effects occur:More common
- Fever of 37.7 degrees C (100 degrees F) or higher
- Aches or pain in the joints, fever, or skin rash or welts (may occur days or weeks after receiving the vaccine)
- blurred vision or other vision changes
- difficulty with breathing or swallowing
- dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
- itching, especially of the feet or hands
- muscle weakness
- numbness or tingling of the arms and legs
- reddening of the skin, especially around the ears
- swelling of the eyes, face, or inside of the nose
- unusual tiredness or weakness (sudden and severe)
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- soreness at the injection site
- Hard lump, redness, swelling, pain, itching, purple spot, tenderness, or warmth at the injection site
- unusual tiredness or weakness
- Aches or pain in the muscles
- back pain or stiffness or pain in neck or shoulder
- difficulty with moving
- feeling of warmth
- general feeling of discomfort or illness
- headache (mild), sore throat, runny nose, or fever (mild)
- increased sweating
- lack of appetite or decreased appetite
- nausea or vomiting
- redness of the face, neck, arms, and occasionally, upper chest
- sleepiness or unusual drowsiness
- stomach cramps or pain
- sudden redness of skin
- swelling of glands in the armpit or neck
- trouble with sleeping
- unable to sleep
- weight loss
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
See also: Engerix-B side effects (in more detail)
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