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Side Effects
Along with its needed effects, a vaccine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. It is very important that you tell your doctor about any side effects that occur after a dose of hepatitis A vaccine, even though the side effect may have gone away without treatment. Some types of side effects may mean that you should not receive any more doses of hepatitis A vaccine.
Check with your doctor immediately if any of the following side effects occur:
Rare- Difficulty in breathing or swallowing
- Hives
- Itching, especially of feet or hands
- Reddening of skin, especially around ears
- Swelling of eyes, face, or inside of nose
- Unusual tiredness or weakness (sudden and severe)
- Black, tarry stools
- Bleeding gums
- Blood in urine or stools
- Confusion
- Inability to move arms and legs
- Irritability
- Pinpoint red spots on skin
- Seizures
- Shakiness and unsteady walk
- Stiff neck
- Sudden numbness and weakness in the arms and legs
- Unsteadiness, trembling, or other problems with muscle control or coordination
- Unusual bleeding or bruising
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common- Soreness at place of injection
- Arm or back pain
- Bleeding between periods
- Body aches or pain
- Change in amount of bleeding during periods
- Change in pattern of monthly periods
- Congestion
- Cough
- Dryness of throat
- Fever of 37.7 °C (100 °F) or higher
- General feeling of discomfort or illness
- Headache
- Hoarseness
- Lack of appetite
- Lack or loss of strength
- Nausea
- Pain, soreness
- Runny nose
- Sneezing
- Sore throat
- Stiffness
- Stuffy nose
- Tender, swollen glands in neck
- Tenderness or warmth at injection site
- Trouble in swallowing
- Unusual stopping of menstrual bleeding
- Voice changes
- Aches or pain in joints or muscles
- Diarrhea or stomach cramps or pain
- Itching
- Swelling of glands in armpits or neck
- Vomiting
- Welts
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
