Side Effects

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:

More common

  1. Anxiety
  2. bladder pain
  3. bloody or cloudy urine
  4. blurred vision
  5. chills
  6. cold sweats
  7. confusion
  8. cool, pale skin
  9. decreased frequency or amount of urine
  10. depression
  11. difficult, burning, or painful urination
  12. dizziness
  13. fast heartbeat
  14. frequent urge to urinate
  15. headache
  16. increased hunger
  17. increased thirst
  18. itching of the vagina or genitals
  19. loss of appetite
  20. loss of consciousness
  21. lower back or side pain
  22. nausea
  23. nightmares
  24. seizures
  25. shakiness
  26. slurred speech
  27. swelling of the face, fingers, or lower legs
  28. thick, white vaginal discharge with mild or no odor
  29. troubled breathing
  30. unusual tiredness or weakness
  31. vomiting
  32. weight gain

Less common

  1. Foul smelling discharge from the penis
  2. pain in the skin around the penis
  3. rash of the penis
  4. redness, itching, or swelling of the penis

Rare

  1. Cough
  2. difficulty with swallowing
  3. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  4. dry mouth
  5. fainting
  6. increase in heart rate
  7. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
  8. lightheadedness
  9. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  10. rapid breathing
  11. skin rash, hives, or itching
  12. sunken eyes
  13. sweating
  14. tightness in the chest
  15. wrinkled skin

Incidence not known

  1. Fever
  2. flushed, dry skin
  3. fruit-like breath odor
  4. loss of consciousness
  5. pain, tenderness, redness, or swelling of the area between the anus and genitals
  6. stomach pain
  7. troubled breathing
  8. unexplained weight loss

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. Muscle aches
  2. sore throat
  3. stuffy or runny nose

Less common

  1. Back pain
  2. difficulty having a bowel movement
  3. pain in the arms or legs

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.