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Synthroid Drug Center

Synthroid (levothyroxine sodium) is a synthetic compound identical to T4 (levothyroxine) produced by the human thyroid gland. Levothyroxine is the generic name for the drug. The drug is used to treat hypothyroidism due to many etiologies (for example, thyroid removal, thyroid atrophy, functional T4 deficiency, radiation treatment of the thyroid, and other causes). It is also used for pituitary TSH suppression. Common side effects include: fever, hot flashes, sensitivity to heat, headache, nervousness, nausea, insomnia, and transient hair loss. Some women experience menstrual changes. Serious side effects -- such as rapid heartbeats, chest pain (or both) -- are cause for patients to notify their doctors immediately.

Synthroid is prescribed in tablets that range from 25 to 300 mcg in strength and is usually taken once a day with a full glass of water (about 8 ounces) 30 to 60 minutes before breakfast for best adsorption into the body. Children can take the medicine if the tablet is crushed and put into about 1 to 2 teaspoons of water; do not store or delay giving this crushed pill suspension. Doctors often may have to slowly increase the dose; patients should not increase or decrease this medication themselves. Because some preparations of the drug may contain iodine or lactose, patients should tell their doctors about such allergies or reactions to these components. Many drugs can inhibit Synthroid's adsorption by the body; other medications may increase or decrease its effectiveness once it is adsorbed. Providing a complete list of medications to the doctor will help with getting the correct dose established for each individual patient. Pregnant and lactating females need to discuss the dose and use of this medication with their caregivers.

Our Synthroid Drug Center provides a comprehensive view of available drug information as well as related drugs, user reviews, supplements, and diseases, and conditions.