Side Effects

Drug information provided by: Merative, Micromedex®

Along with its needed effects, a medicine 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:

Less common or rare

  1. Abdominal or stomach pain
  2. burning
  3. chills
  4. clay-colored stools or dark urine
  5. cough
  6. diarrhea
  7. difficulty swallowing
  8. dizziness
  9. fast or irregular heartbeat
  10. fever
  11. headache
  12. hives
  13. itching
  14. prickly sensations
  15. puffiness or swelling of the eyelids or around the eyes, face, lips or tongue
  16. redness of skin
  17. seizures
  18. shortness of breath
  19. skin rash
  20. swelling
  21. tightness in chest
  22. tingling
  23. unusual tiredness or weakness
  24. wheezing

Check with your doctor as soon as possible if any of the following side effects occur:

Less common or rare

  1. Sore throat
  2. unusual bleeding or bruising
  3. unusual tiredness or weakness

Symptoms of overdose

  1. Clumsiness or unsteadiness
  2. convulsions (seizures)
  3. drowsiness (severe)
  4. dryness of mouth, nose, or throat (severe)
  5. feeling faint
  6. flushing or redness of face
  7. hallucinations (seeing, hearing, or feeling things that are not there)
  8. shortness of breath or troubled breathing
  9. trouble in sleeping

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

  1. Drowsiness
  2. dry mouth, nose, or throat
  3. gastrointestinal upset, stomach pain, or nausea
  4. headache
  5. increased appetite and weight gain
  6. thickening of mucus

Less common or rare

  1. Acid or sour stomach
  2. belching
  3. blurred vision or any change in vision
  4. body aches or pain
  5. clumsiness or unsteadiness
  6. confusion (not with diphenhydramine)
  7. congestion
  8. constipation
  9. cough
  10. diarrhea
  11. difficult or painful urination
  12. difficulty in moving
  13. difficult or painful menstruation
  14. dizziness (not with brompheniramine or hydroxyzine)
  15. drowsiness (with high doses of desloratadine and loratadine)
  16. dryness of mouth, nose, or throat
  17. early menstruation
  18. fast heartbeat
  19. fever
  20. heartburn
  21. hoarseness
  22. increased sensitivity of skin to sun
  23. increased sweating
  24. indigestion
  25. loss of appetite
  26. joint pain
  27. muscle aching or cramping
  28. muscle pains or stiffness
  29. nausea
  30. nightmares (not with azatadine, chlorpheniramine, cyproheptadine, desloratadine, hydroxyzine, or loratadine)
  31. ringing or buzzing in ears
  32. runny nose
  33. skin rash
  34. swollen joints
  35. stomach discomfort, upset or pain
  36. tender swollen glands in neck
  37. tremor
  38. unusual excitement, nervousness, restlessness, or irritability
  39. vomiting

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.