What should I watch for?
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.
Common and Rare 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:
Incidence not known
decrease in the frequency of urination
decrease in urine volume
difficult or painful urination
difficulty in passing urine (dribbling)
difficulty with swallowing
dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
fast, irregular, pounding, or racing heartbeat or pulse
hives or welts
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
redness of the skin
tightness in the chest
unusual tiredness or weakness
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
difficulty with sleeping
drowsiness to profound coma
feeling of warmth
fixed and enlarged pupils
loss of appetite
redness of the face, neck, arms, and occasionally, upper chest
seeing, hearing, or feeling things that are not there
tightness of the chest
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:
Incidence not known
Back, leg, or stomach pains
black, tarry stools
blood in the urine or stools
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
continuing ringing or buzzing or other unexplained noise in the ears
cough or hoarseness
difficulty having a bowel movement (stool)
dizziness or lightheadedness
dry mouth, nose, and throat
feeling of constant movement of self or surroundings
fever with or without chills
general body swelling
general feeling of tiredness or weakness
increased sensitivity of the skin to sunlight
loss of appetite
lower back or side pain
pinpoint red spots on the skin
redness or other discoloration of the skin
sensation of spinning
shakiness in the legs, arms, hands, or feet
sores, ulcers, or white spots on the lips or in the mouth
trembling or shaking of the hands or feet
unusual bleeding or bruising
yellowing of the eyes or skin
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.