What should I watch for?
Your condition will be monitored carefully while you are receiving this medicine. You will need regular blood work. Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
You may have sudden breakdown of your red blood cells after you stop taking this medicine. You will need to be followed by your doctor for 8 weeks or more after this therapy is complete.
This medicine may decrease your body's ability to fight infection. Avoid being around people who are sick.
Carry the Patient Safety Card given to you at all times. Seek medical help if you have any of the symptoms listed on the card.
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 or nurse immediately if any of the following side effects occur:
black, tarry stools
bloody or cloudy urine
burning or stinging of the skin
difficult, burning, or painful urination
difficulty with moving
lower back or side pain
muscle ache, cramp, pain, or stiffness
pain or tenderness around the eyes and cheekbones
painful cold sores or blisters on the lips, nose, eyes, or genitals
pounding in the ears
slow or fast heartbeat
sores, ulcers, or white spots on the lips or in the mouth
stuffy or runny nose
swollen glands or joints
tightness of the chest
troubled breathing with or without exertion
unusual bleeding or bruising
unusual tiredness or weakness
general feeling of discomfort or illness
loss of appetite
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:
Difficulty having a bowel movement
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.