This medication is a thyroid hormone. Typically, it is used as a thyroid hormone supplement. It requires a few weeks to take effect.
This medication is typically used only once a day. However, your doctor or pharmacist may have suggested a different schedule that is more appropriate for you. You should take this medication at approximately the same time each day.
Important: Follow the instructions on the label. Do not use more of this product, or more often, than prescribed. It must be used regularly and continuously to maintain its beneficial effects. Be sure to keep an adequate supply on hand.
To ensure effectiveness, avoid taking milk, dairy products, antacids or mineral supplements (calcium, iron, magnesium or zinc) for at least 4 hours before and after taking this medication.
This product is generally well tolerated and rarely causes side effects. When side effects do occur, they usually disappear on their own, without further treatment. If you think this medication may be causing side effects, talk to your doctor or pharmacist. He or she can help you to determine whether or not the medication is the source of the problem.
As with most medications, this product should be stored at room temperature. Store it in a secure location where it will not be exposed to excessive heat, moisture or direct sunlight. Keep it out of reach of young children. Make sure that any leftover portion is disposed of safely.
This medication may interact with other medications or supplements, sometimes significantly. Many interactions, however, may be dealt with by a dosage adjustment or a change in medication schedule. Check with your pharmacist before using this medication in combination with any other medications (including non-prescription products), vitamins or natural products.
Blood tests must be done regularly while using this medication. A blood sample will indicate whether your treatment is having the desired effect. It will also provide the necessary information for adjusting the dosage to the lowest effective dose, thus decreasing the risk of adverse effects. Be sure to keep all your appointments.
Symptoms that suggest the dosage may be too high include: Increased appetite, dry/brittle/fine hair, diarrhea, weakness, fatigue, insomnia, intolerance to heat, heart palpitations, weight loss, excessive perspiration, nervousness, anxiety, irritability, confusion, tremor, menstrual irregularities.
Symptoms that suggest the dosage may be too low include: Constipation, depression, excessive fatigue, weakness, weight gain, intolerance to cold, brittle nails, cold and dry skin, heavy menstrual bleeding, menstrual irregularities, muscle pain, dry/brittle/fine hair, slow speech.
It is important to tell the health professionals you consult: