What should I watch for?
Visit your doctor or health care professional for regular checks on your progress. You will need frequent blood checks during the first few months you are receiving the medicine.
This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.
This medicine can cause birth defects. Do not get pregnant while taking this drug. Females will need to have a negative pregnancy test before starting this medicine. If sexually active, use 2 reliable forms of birth control together for 4 weeks before starting this medicine, while you are taking this medicine, and for 6 weeks after you stop taking this medicine. Birth control pills alone may not work properly while you are taking this medicine. If you think that you might be pregnant talk to your doctor right away.
If you get a cold or other infection while receiving this medicine, call your doctor or health care professional. Do not treat yourself. The medicine may decrease your body's ability to fight infections.
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:
Blood in the urine
chest pain or discomfort
cough or hoarseness
fever or chills
lower back or side pain
painful or difficult urination
shortness of breath
swelling of the feet or lower legs
Abdominal or stomach pain
black, tarry stools
bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, or warmth at injection site
muscle aches or pain
pinpoint red spots on the skin
red, inflamed, or bleeding gums
sores inside the mouth
trembling or shaking of the hands or feet
unusual bleeding or bruising
white patches on the mouth, tongue, or throat
Incidence not known
Abdominal or stomach distention
blue lips, fingernails, or skin
chronic or occasional diarrhea
coughing or spitting up blood
difficult or troubled breathing
difficulty speaking or understanding what others say
general feeling of illness or nausea
irregular, fast or slow, or shallow breathing
loss of coordination
stiff neck or back
stools that float, are foul smelling, or "fatty"
unusual tiredness or weakness
weakness in the legs
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:
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.