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PRECAUTIONS: Before receiving this vaccination, tell your doctor or pharmacist if you are allergic to it; or to eggs or chicken products; or to any other vaccines; or if you have any other allergies. This product may contain inactive ingredients (such as latex found in some brands), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: any fever, uncontrolled seizures or other nervous system disorder (e.g., encephalopathy).Before using this medication, tell your doctor or pharmacist your medical history, especially of: bleeding disorders (e.g., hemophilia, thrombocytopenia), history of Guillain-Barre syndrome, immune system disorders (e.g., autoimmune disorders, radiation treatment), seizures (e.g., epilepsy controlled by medication, febrile seizures) or history of other nervous system disorders, vaccination history including previous reactions to any vaccines.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Your healthcare professionals (e.g., doctor or pharmacist) may already be aware of any possible drug interactions and may be monitoring you for it. Do not start, stop or change the dosage of any medicine before checking with them first.Before receiving this vaccine, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: "blood thinners" (e.g., warfarin, heparin), corticosteroids (e.g., hydrocortisone, prednisone), cancer chemotherapy, immunosuppressants (e.g., cyclosporine, efalizumab, tacrolimus).This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

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.