Is Synthroid and levothyroxine the same drug?

Brand names for levothyroxine, the main drug used to treat hypothyroidism, include Synthroid, Levoxyl, Unithroid, and Levothroid. The generic version of levothyroxine is also prescribed, but there is some controversy about whether it is as effective and reliable as the brand names.Click to see full answer. Besides, are Synthroid and levothyroxine the same?Synthroid (levothyroxine sodium) and Levothroid (levothyroxine sodium) are replacements for hormones produced by the human thyroid gland used to treat hypothyroidism (low thyroid hormone). Synthroid is also used for pituitary TSH suppression.Subsequently, question is, what drugs interfere with Synthroid? There may be an interaction between levothyroxine and any of the following: amiodarone. antacids (e.g., aluminum hydroxide, calcium carbonate, magnesium hydroxide) anticonvulsants (e.g., carbamazepine, phenytoin, phenobarbital) beta-blockers (e.g., metoprolol, propranolol) birth control pills containing estrogen. Moreover, are all brands of levothyroxine the same? Several brand-name synthetic levothyroxine preparations are currently available. These include Levothroid, Levoxyl, Synthroid, Tirosint and Unithroid in the United States; and Eltroxin and Euthyrox in Canada. Although all these medications are synthetic levothyroxine, they are not identical.Is generic Synthroid safe?Generic levothyroxine is just as safe as the brand names—in the United States, these include Synthroid, Levoxyl, Unithroid, and Tirosint—because it has the same FDA-approved active ingredient (levothyroxine).

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