MenHibrix Side Effects

Generic name: haemophilus b conjugate (prp-t) vaccine / meningococcal conjugate vaccine

Medically reviewed by Drugs.com. Last updated on Aug 29, 2023.

Note: This document contains side effect information about haemophilus b conjugate (prp-t) vaccine / meningococcal conjugate vaccine. Some dosage forms listed on this page may not apply to the brand name MenHibrix.

Applies to haemophilus b conjugate (prp-t) vaccine / meningococcal conjugate vaccine: intramuscular powder for injection.

Your child should not receive a booster vaccine if he or she had a life threatening allergic reaction after the first shot. Keep track of any and all side effects your child has after receiving this vaccine. When the child receives a booster dose, you will need to tell the doctor if the previous shot caused any side effects.

Becoming infected with haemophilus B or meningococcal disease is much more dangerous to your child's health than receiving this vaccine. However, like any medicine, this vaccine can cause side effects but the risk of serious side effects is extremely low.

Get emergency medical help if your child has signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if the child has a serious side effect such as:

• severe weakness, trouble breathing;

• extreme drowsiness, fainting;

• fussiness, irritability, crying for an hour or longer;

• seizure (convulsions); or

• high fever (within a few hours or a few days after the vaccine).

Common side effects may include:

• redness, pain, or swelling where the shot was given;

• low fever;

• mild fussiness or crying;

• loss of appetite; or

• drowsiness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to haemophilus b conjugate (prp-t) vaccine/meningococcal conjugate vaccine: intramuscular powder for injection.

Nervous system

Very common (10% or more): Drowsiness

Postmarketing reports: Febrile seizures, hypotonia, headache, dizziness^[Ref]

Other

Very common (10% or more): Fever (rectal 38C or higher)

Uncommon (0.1% to 1%): Fever (rectal over 39.5C)

Rare (less than 0.1%): Malaise^[Ref]

Metabolic

Very common (10% or more): Decreased appetite^[Ref]

Local

Very common (10% or more): Injection site reaction (swelling, pain, redness)

Common (1% to 10%): Injection site reactions including induration and nodules^[Ref]

Psychiatric

Very common (10% or more): Irritability

Uncommon (0.1% to 1%): Crying

Rare (less than 0.1%): Insomnia^[Ref]

Respiratory

Postmarketing reports: Apnea in very premature infants (28 weeks gestation or less)^[Ref]

Gastrointestinal

Uncommon (0.1% to 1%): Diarrhea, vomiting

Rare (less than 0.1%): Abdominal pain^[Ref]

Dermatologic

Uncommon (0.1% to 1%): Atopic dermatitis, rash^[Ref]

Hematologic

Postmarketing reports: Lymphadenopathy^[Ref]

Hypersensitivity

Postmarketing reports: Allergic reactions (including urticaria and anaphylactoid reactions)^[Ref]

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer