This medicine is a thyroid hormone used for treating low thyroid hormone levels and certain types of goiters. It is also used with surgery and other medicines for managing certain types of thyroid cancer. It may also be used for other conditions as determined by your doctor.
Follow the directions for taking this medicine provided by your doctor. TAKE THIS MEDICINE by mouth on an empty stomach at least one-half to one hour before breakfast. DO NOT TAKE AN ANTACID OR PRODUCT THAT HAS IRON OR CALCIUM in it within 4 hours of taking this medicine. STORE THIS MEDICINE at 77 degrees F (25 degrees C). Brief storage at temperatures between 59 and 86 degrees F (15 and 30 degrees C) is permitted. Protect from heat, light, and moisture. Do not store in the bathroom. This medicine works best if it is taken at the same time each day. CONTINUE TO TAKE THIS MEDICINE even if you feel well. Do not miss any doses. IF YOU MISS A DOSE of this medicine, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. DO NOT take 2 doses at once.
WARNING: Do not use this medicine alone or with other medicines to treat obesity or to lose weight. Incorrect use of this medicine may cause serious and sometimes fatal side effects. Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are also taking prescription or nonprescription medicines (eg, used for infections, inflammation, aches and pains, nasal congestion, asthma, high blood pressure, irregular heartbeat or other heart problems, blood thinning, mental or mood problems, depression, diabetes, other thyroid problems, high cholesterol, hepatitis, weight loss, heartburn, birth control, hormone replacement therapy, growth hormone deficiency, cancer, seizures) and multivitamin products. DO NOT START OR STOP any medicine without doctor or pharmacist approval. Inform your doctor of any other medical conditions, including trouble swallowing, heart or blood vessel problems (eg, coronary artery disease), high blood pressure, blood clotting or bleeding problems, pernicious anemia, diabetes, bone problems (eg, osteoporosis), fertility problems, pituitary problems, adrenal gland problems, other thyroid problems, allergies, pregnancy, or breast-feeding. Tell your doctor if you have problems absorbing nutrition from your stomach or intestines into your body or if you had a recent surgery or have an upcoming surgery. USE OF THIS MEDICINE IS NOT RECOMMENDED if you cannot swallow a capsule, have untreated adrenal gland problems, high thyroid hormone levels, or you have had a recent heart attack. Use of this medicine is not recommended in newborns and small children who cannot swallow the capsule. Contact your doctor or pharmacist if you have any questions or concerns about using this medicine.
NO COMMON SIDE EFFECTS HAVE BEEN REPORTED with the proper use of this medicine. If you notice any unusual effects, contact your health care provider. CONTACT YOUR DOCTOR IMMEDIATELY if you experience changes in appetite; changes in menstrual periods; chest pain; diarrhea; excessive sweating; fast or irregular heartbeat; fever; heat intolerance; joint pain; leg cramps; mental or mood changes (eg, anxiety, irritability, nervousness); muscle weakness; seizures; severe or persistent headache or fatigue; shortness of breath; stomach cramps; tremors; trouble sleeping; unusual weight gain or weight loss; vomiting; or wheezing. AN ALLERGIC REACTION to this medicine is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include rash; hives; itching; flushing; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness. This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include coma, confusion, disorientation, and seizures.
DO NOT SHARE THIS MEDICINE with others for whom it was not prescribed. DO NOT USE THIS MEDICINE for other health conditions. KEEP THIS MEDICINE out of the reach of children and pets. IF YOU WILL BE USING THIS MEDICINE FOR AN EXTENDED PERIOD OF TIME, be sure to obtain necessary refills before your supply runs out.