What should I watch for?
Visit your doctor or health care professional for regular checks on your progress. Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
This medicine may affect your vision. Your eyes may have trouble adjusting from light to dark. Be careful driving at night or through tunnels. Wearing tinted glasses may help.
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:
Blood in the urine
difficult or labored breathing
fever or chills
general feeling of discomfort or illness
loss of appetite
muscle aches and pains
pounding in the ears
shortness of breath
slow or fast heartbeat
tightness in the chest
trouble with sleeping
troubled breathing with exertion
unusual bleeding or bruising
unusual tiredness or weakness
Arm, back, or jaw pain
bloody, black, or tarry stools
change in color vision
decreased urine output
difficulty seeing at night
dilated neck veins
fast or irregular heartbeat
increased sensitivity of the eyes to sunlight
swelling of the face, fingers, feet, or lower legs
vomiting of blood or material that looks like coffee grounds
weight gain or 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:
Acid or sour stomach
body hair loss
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
changes in vision
decrease in testicle size
decreased interest in sexual intercourse
difficulty having a bowel movement (stool)
feeling of warmth
inability to have or keep an erection
increased urge to urinate during the night
loss in sexual ability, desire, drive, or performance
redness of the face, neck, arms and occasionally, upper chest
stomach discomfort, upset, or pain
unable to sleep
waking to urinate at night
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.