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Levothyroxine Sodium, also known as L-thyroxine, synthetic T4 or simply 3,5,3',5'-tetraiodo-L-thyronine, is a synthetic form of thyroxine (thyroid hormone). As the hormone is chemically in the L-form (instead of D, see chirality), it is metabolised much slower than physiological thyroid hormone, which has a shorter half-life.
The EU has recently standardised the use of the name "levothyroxine" for the drug. Common brand names include "Thyrax", "Euthyrox", "Levaxin" and "Eltroxin" in Europe, and "Levoxyl" and "Synthroid" in the US.
This medicine is usually given to patients with thyroid problems. These many problems can affect the patient's (if he/she is a child/teenager) growth and/or weight.
More on [ Levothyroxine ]
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Drug InfoNet - Synthroid - Doctors answers to frequently asked questions for patients taking any form of levothyroxine.
Levothyroxine - Information for patients from DrugDigest on dosage, usage, side effects, and interactions. Brand names include Eltroxin, Levothroid, Levoxine, Levoxyl, Synthroid, and Unithroid.
Levothyroxine Sodium - Information about this medication used in thyroid hormone replacement therapy, sold under brand names including Synthroid, Levoxyl, Levothroid, and Unithroid. MedicineNet State of the Art Medical Information.
Meta Description: [ Learn more about Levothyroxine Sodium, including a description, generic and brand names, drug class and mechanism, preparations, storage, reasons for prescription, dosing, drug interactions, effect on pregnancy and nursing mothers, and common side effects. ]
Levoxyl - Manufacturer's site for this brand of levothyroxine sodium. Includes product and prescribing information, and discussion of US FDA requirements for potency and stability.
RXMed: Eltroxin - Product information for Glaxo Wellcome's brand of levothyroxine sodium, a synthetic hormone used in thyroid replacement therapy.
RXmed: Synthroid - Information for family physicians and prescribing information.
Synthroid - Information for patients, healthcare providers, and pharmacists.
Meta Description: [ Synthroid.com is an online resource from Abbott Laboratories that provides the latest information about Synthroid and recognizing, treating, and living with hypothyroidism. This Web site will answer many questions patients may have about thyroid health, Synthroid therapy, and how to maintain thyr... ]
