Comvax Side Effects

Generic name: haemophilus b conjugate (prp-omp) vaccine / hepatitis b pediatric vaccine

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

Some side effects of Comvax may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Applies to haemophilus b conjugate (prp-omp) vaccine / hepatitis b pediatric vaccine: intramuscular suspension

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 shots caused any side effects.

Becoming infected with haemophilus B or hepatitis A is much more dangerous to your child's health than receiving the vaccine to protect against these diseases. 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 any of these 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 any of these serious side effects:

• extreme drowsiness, fainting;

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

• seizure (black-out or convulsions); or

• high fever.

Less serious side effects include:

• redness, pain, tenderness, swelling, or a hard lump where the shot was given;

• diarrhea, loss of appetite, mild vomiting;

• mild fussiness or crying;

• joint pain, body aches; or

• mild fever.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

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