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PRECAUTIONS: Before taking this medication, tell your doctor or pharmacist if you are allergic to any of its ingredients; or if you have any other allergies.This medication should not be used if you have certain medical conditions. Before using this medication, consult your doctor or pharmacist if you have: certain metabolic disorders (e.g., hemochromatosis, hemosiderosis).Before taking this medication, tell your doctor or pharmacist your medical history, especially of: use/abuse of alcohol, stomach/intestinal problems (e.g., ulcers, colitis), vitamin B12 deficiency (pernicious anemia).During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.This medication passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: See also How To Use section.If this drug has been prescribed, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially: certain anti-seizure drugs (e.g., phenytoin), chloramphenicol, methyldopa.This product can decrease the absorption of other drugs such as bisphosphonates (for example, alendronate), levodopa, penicillamine, quinolone antibiotics (for example, ciprofloxacin, levofloxacin), thyroid medications (for example, levothyroxine), and tetracycline antibiotics (for example, doxycycline, minocycline). Therefore, separate your doses of these medications as far as possible from your doses of this product. Ask your doctor or pharmacist about how long you should wait between doses and for help finding a dosing schedule that will work with all your medications.This medication may interfere with certain laboratory tests (e.g., tests for blood in the stools), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.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.