April 28, 2017
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BayHep B

"Patients with a past or current hepatitis B virus (HBV) infection can experience sometimes fatal HBV reactivation if they take any of nine direct-acting antivirals for hepatitis virus C (HCV) infection, the US Food and Drug Administration (FDA) a"...


BayHep B

BayHep B Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 4/8/2016

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. 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

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

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.

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

BayHep B FDA Prescribing Information: Side Effects
(Adverse Reactions)


Local pain and tenderness at the injection site, urticaria and angioedema may occur; anaphylactic reactions, although rare, have been reported following the injection of human immune globulin preparations.19

Read the entire FDA prescribing information for BayHep B (Hepatitis B Immune Globulin (Human))

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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