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- Bladder pain
- Blistering, crusting, irritation, itching, or reddening of the skin
- Bloody or cloudy urine
- Burning, skin rash, swelling, or soreness at the application site
- Cracked, dry, or scaly skin
- Difficult, burning, or painful urination
- Frequent urge to urinate
- Lower back or side pain
- Redness, pain, itching, or irritation at the application site
- Unusually warm skin
- Abdominal or stomach pain
- Diarrhea
- Loss of appetite
- Nausea
- Weakness
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose- Chest pain or discomfort
- Confusion
- Decrease in the frequency of urination
- Decrease in urine volume
- Decreased urination
- Difficulty in passing urine (dribbling)
- Dizziness
- Dry mouth
- Fainting
- Fast, slow, or irregular heartbeat
- Feeling of warmth
- Fever
- Increase in heart rate
- Lightheadedness
- Pounding or rapid pulse
- Rapid breathing
- Redness of the face, neck, arms, and occasionally, upper chest
- Sunken eyes
- Thirst
- Unusual feeling of excitement
- Unusual tiredness or weakness
- Vomiting
- Wrinkled skin
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- Body aches or pain
- Chills
- Cough
- Difficulty with breathing
- Ear congestion
- Headache
- Loss of voice
- Nasal congestion
- Runny nose
- Sneezing
- Sore throat
- Back pain
- Bloated
- Changes in vision
- Constipation
- Excess air or gas in the stomach or intestines
- Full feeling
- Muscle aches
- Passing gas
- Sleepiness or unusual drowsiness
- Stuffy or runny nose
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.


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