PRECAUTIONS: Tell your doctor if you have: heart disease, kidney disease, liver problems, blood disorders, anemia, allergies (especially to protein). This medication should be used only if clearly needed during pregnancy. Discuss the risks and benefits with your doctor. It is not known if this medication appears in breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Tell your doctor of any over-the-counter or prescription medication you may take. Do not start or stop any medicine without doctor or pharmacist approval.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly.

NOTES: Blood tests and other laboratory tests will be done frequently during therapy to monitor the effectiveness of this medication and to prevent side effects.

MISSED DOSE: It is important that each dose be used as directed. If you miss a dose, contact your doctor to establish a new dosing schedule. Do not "double-up" the dose to catch up.

STORAGE: Store this medication at room temperature as directed. Do not use if this contains particles. Check the expiration date on the label and properly discard of any unused medication after that time.

Report Problems to the Food and Drug Administration You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088. Need help identifying pills and medications? Use the pill identifier tool on RxList.