Comvax Side Effects

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

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

Not all side effects for Comvax may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

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

In addition to its needed effects, some unwanted effects may be caused by haemophilus b conjugate (prp-omp) vaccine / hepatitis b pediatric vaccine. In the event that any of these side effects do occur, they may require medical attention.

If any of the following side effects occur while taking haemophilus b conjugate (prp-omp) vaccine / hepatitis b pediatric vaccine, check with your doctor or nurse immediately:

More common
  • Fever more than 103 degrees F
Less common
  • Body aches or pain
  • chills
  • cough
  • difficulty with breathing
  • ear congestion
  • fever
  • headache
  • loss of voice
  • nasal congestion
  • runny nose
  • sneezing
  • sore throat
  • unusual tiredness or weakness
Incidence not known
  • Black, tarry stools
  • bleeding gums
  • blistering, peeling, or loosening of the skin
  • blood in the urine or stools
  • convulsions
  • diarrhea
  • difficulty with swallowing
  • dizziness
  • fast heartbeat
  • hives
  • itching
  • joint or muscle pain
  • large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  • pinpoint red spots on the skin
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • red, irritated eyes
  • shortness of breath
  • skin rash
  • sores, ulcers, or white spots in the mouth or on the lips
  • tightness in the chest
  • unusual bleeding or bruising
  • wheezing

Some of the side effects that can occur with haemophilus b conjugate (prp-omp) vaccine / hepatitis b pediatric vaccine may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common
  • Hard lumps, pain, redness, soreness, swelling, or warmth at the injection site
  • irritability
  • sleepiness or unusual drowsiness
  • unusual, high-pitched crying
Less common
  • Earache
  • loss of appetite
  • redness or swelling in the ear
  • vomiting
  • weight loss
Rare
  • Sore mouth or tongue
  • white patches in the mouth or throat or on the tongue
  • white patches with diaper rash
Incidence not known
  • Hives or welts
  • redness of the skin

More about Comvax (haemophilus b conjugate (prp-omp) vaccine / hepatitis b pediatric vaccine)

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