PRECAUTIONS: Before taking interferon, tell your doctor or pharmacist if you are allergic to it; or to natural rubber (latex); or if you have any other allergies. Before using this medication, tell your doctor or pharmacist your medical history, especially of: mental/mood disorders (e.g., depression, psychosis, suicidal thoughts), heart disease (e.g., angina, congestive heart failure, arrhythmia), seizures, thyroid disease, liver disease, decreased bone marrow function. This medication is not recommended for use during pregnancy. Consult your doctor for more details. It is not known whether this drug passes into breast milk. Breast feeding is not recommended while using this drug. 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 using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: theophylline.

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: Do not share this medication with others. Laboratory and/or medical tests (e.g., complete blood counts, blood chemistry, liver and thyroid function tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

MISSED DOSE: If you miss a dose, use it as soon as you remember. Do not use this medication 2 days in a row. Contact your health care provider to establish a new dose schedule. Do not double the dose to catch up.

STORAGE: Store this medication in the refrigerator between 36-46 degrees F (2-8 degrees C) away from light and moisture. Do not freeze. Use within 12 hours after taking the dose out of the refrigerator. Keep all medicines away from children and pets.

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