Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug include: beta blockers (e.g., propranolol, sotalol).

Many drugs besides formoterol may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics (such as erythromycin), among others. Therefore, before using formoterol, report all medications you are currently using to your doctor or pharmacist.

OVERDOSE: This medication may be harmful if swallowed. If swallowing or 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. Canada residents can call a provincial poison control center. Symptoms of overdose may include: chest pain, fast/irregular heartbeat, severe dizziness, fainting.

NOTES: Do not share this medication with others.

Laboratory and/or medical tests (e.g., blood pressure, heart rate, lung function) may be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

Avoid smoking and other factors that make breathing worse.

Ask your doctor or pharmacist whether you should have an annual flu shot.

MISSED DOSE: If you miss a dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

STORAGE: Store in the refrigerator between 36-46 degrees F (2-8 degrees C) in the sealed protective pouch. Protect from light and heat.

Unopened pouches of medication may also be stored at room temperature between 68-77 degrees F (20-25 degrees C) for up to 3 months. Discard the medication if it is not used within 3 months or after its expiration date, whichever is sooner. Do not store in the bathroom. Keep all medicines away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

MEDICAL ALERT: Your condition can cause complications in a medical emergency. For information about enrolling in MedicAlert, call 1-800-854-1166 (USA) or 1-800-668-1507 (Canada).

Information last revised January 2011. Copyright(c) 2011 First Databank, Inc.