BayHep B Side Effects Center

What Is BayHep B?

BayHep B (hepatitis b immune globulin human) is an immunization used for post-exposure prevention of infection with the hepatitis B virus in patients exposed to the virus under certain conditions (such as direct contact with blood or body fluids containing this virus). BayHep B may be available in generic form.

What Are Side Effects of BayHep B?

Common side effects of BayHep B include:

•  local injection site reactions (pain, tenderness, redness, swelling)
• headache
• nausea
• loss of appetite
• fever, and
• allergic reactions (rash, hives, itching, difficulty breathing, chest tightness, or swelling of the mouth, face, lips, or tongue

Dosage for BayHep B

The dose of BayHep B is an injection of 0.06 mL/kg of body weight administered intramuscularly as soon as possible after exposure and within 24 hours, if possible.

What Drugs, Substances, or Supplements Interact with BayHep B?

BayHep B may interact with other live virus vaccines. Tell your doctor all medications and supplements you use and all vaccines you recently received.

BayHep B During Pregnancy or Breastfeeding

It is unknown if BayHep B can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Tell your doctor if you are pregnant before receiving BayHep B. Consult your doctor before breastfeeding.

Additional Information

Our BayHep B (hepatitis b immune globulin human) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

• fever, mouth sores, red or swollen gums;
• a light-headed feeling, like you might pass out;
• liver problems--upper stomach pain, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
• symptoms of fluid buildup around your lungs--chest pain, pain when you breathe, rapid heart rate, feeling light-headed or short of breath (especially when lying down); or
• symptoms of a blood clot or stroke--sudden numbness or weakness (especially on one side of the body); chest pain, trouble breathing, rapid heart rate, coughing up blood; or pain, swelling, warmth, or redness in your arms or legs.

Common side effects may include:

• nausea, vomiting, diarrhea, upset stomach;
• back pain, tired feeling;
• tremors, memory problems, agitation, vision problems;
• cold symptoms such as stuffy nose, sneezing, sore throat;
• mild rash; or
• pain, redness, bruising, or tenderness where the medicine was injected.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.