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Claritin has very few side effects. In rare instances you may experience:

  • Headache
  • Tiredness
  • Fatigue
  • Dry mouth

Young children have also reported the following rare side effects:

  • Nervousness
  • Wheezing
  • Fatigue
  • Hyperkinesias
  • Abdominal pain
  • Conjunctivitis
  • Malaise
  • Voice disorders (dysphonia)
  • Upper Respiratory Tract Infection
  • Flu like symptoms
  • Viral infection
  • Rash
  • Diarrhea

Though all of these side effects are extremely rare, if you experience any of the side effects, you should consult your doctor. It is possible that if you are experiencing side effects, that you may be allergic to the medicine. Side effects that would suggest this include rash, itching/swelling, severe dizziness and trouble breathing. In any of these instances, consult your doctor immediately.

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14y ago

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