Levothyroxine sodium
from class: Pharmacology for Nurses Definition Levothyroxine sodium is a synthetic form of the thyroid hormone thyroxine (T4) used to treat hypothyroidism. It helps restore adequate hormone levels, thereby aiding in normal metabolic functions.
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Predict what's on your test 5 Must Know Facts For Your Next Test Levothyroxine sodium is typically administered orally but can also be given intravenously. The drug has a narrow therapeutic index, requiring careful dose adjustment and monitoring of thyroid function tests. Common side effects include weight loss, increased appetite, and nervousness if overdosed. It interacts with various medications such as calcium supplements and certain antacids, which can affect its absorption. Patients are usually advised to take it on an empty stomach at the same time each day for consistent absorption. Review Questions What are the primary uses of levothyroxine sodium? Why is it important to monitor thyroid function tests when a patient is taking levothyroxine sodium? What are some common interactions that can affect the absorption of levothyroxine sodium?
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