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:

More common

  1. Dizziness
  2. fast, irregular, pounding, or racing heartbeat or pulse
  3. sleepiness

Less common

  1. Blurred vision
  2. chills
  3. cold sweats
  4. dizziness, faintness, or lightheadedness when getting up from lying or sitting position
  5. swelling
  6. trouble breathing

Rare

  1. Bloating
  2. constipation
  3. darkened urine
  4. decreased interest in sexual intercourse
  5. fever
  6. inability to have or keep an erection
  7. indigestion
  8. loss in sexual ability, desire, drive, or performance
  9. loss of appetite
  10. nausea
  11. painful or prolonged erection of the penis for more than 4 hours
  12. pains in the stomach, side, or abdomen, possibly radiating to the back
  13. vomiting
  14. yellow eyes or skin

Incidence not known

  1. Arm, back, or jaw pain
  2. chest pain, discomfort, tightness, or heaviness
  3. confusion
  4. cough
  5. difficulty swallowing
  6. eye pain
  7. hives, itching, skin rash
  8. puffiness or swelling of the eyelids or around the eyes, face, lips or tongue
  9. slow or irregular heartbeat
  10. unusual tiredness or weakness

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. Headache
  2. lack of energy
  3. unusual drowsiness, dullness, or feeling of sluggishness

Less common

  1. Bloody nose
  2. diarrhea
  3. discouragement
  4. dry mouth
  5. feeling of constant movement of self or surroundings
  6. feeling sad or empty
  7. increased need to urinate
  8. loss of interest or pleasure
  9. nervousness
  10. passing urine more often
  11. sensation of spinning
  12. stuffy nose
  13. trouble concentrating
  14. trouble sleeping

Rare

  1. Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  2. continuing ringing or buzzing or other unexplained noise in the ears
  3. difficulty in moving
  4. hearing loss
  5. increased sweating
  6. loss or thinning of the hair
  7. muscle pain or stiffness
  8. pain in the joints
  9. seeing, hearing, or feeling things that are not there

Incidence not known

  1. Feeling of warmth
  2. lack or loss of strength
  3. redness of the face, neck, arms and occasionally, upper chest
  4. swelling of the breasts or breast soreness in both females and males

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.