Prevnar Side Effects

Generic Name: pneumococcal 7-valent vaccine

Note: This page contains side effects data for the generic drug pneumococcal 7-valent vaccine. It is possible that some of the dosage forms included below may not apply to the brand name Prevnar.

It is possible that some side effects of Prevnar may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

Applies to pneumococcal 7-valent vaccine: intramuscular suspension

Along with its needed effects, pneumococcal 7-valent vaccine (the active ingredient contained in Prevnar) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking pneumococcal 7-valent vaccine:

Symptoms of allergic reaction
  • Difficulty with breathing or swallowing
  • hives
  • itching, especially of the feet or hands
  • reddening of the skin, especially around the ears
  • swelling of the eyes, face, or inside of the nose
  • unusual tiredness or weakness (sudden and severe)

Check with your doctor as soon as possible if any of the following side effects occur while taking pneumococcal 7-valent vaccine:

Less common
  • Fever over 39 °C (102.2 °F)
  • Collapse or shock-like state
  • convulsions

Some side effects of pneumococcal 7-valent vaccine 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
  • Decreased appetite
  • diarrhea
  • drowsiness
  • fever of less than 39 °C (102.2 °F)
  • irritability
  • redness, soreness, hard lump, swelling, or pain at the injection site
  • restless sleep
  • vomiting
Less common
  • Skin rash or hives

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