Difference Between Synthroid and Levothyroxine: An Examination
Synthroid and levothyroxine are two well-known medications used to treat certain thyroid conditions, particularly hypothyroidism and thyroid cancer. Both drugs contain the same active drug and are likely to cause similar side effects.
Synthroid and oral forms of levothyroxine are approved by the Food and Drug Administration (FDA) for treating certain types of hypothyroidism and thyroid cancer. Synthroid comes as an oral tablet, while levothyroxine comes in oral tablets, oral capsules, and IV injection.
For adults with thyroid cancer, the dosage for lowering thyroid-stimulating hormone (TSH) levels varies depending on the treatment plan. Synthroid is available in the following strengths: 25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 137 mcg, 150 mcg, 175 mcg, 200 mcg, 300 mcg. Levothyroxine oral capsules for adults with thyroid cancer are available in strengths such as 13 mcg, 25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 137 mcg, 150 mcg, 175 mcg, 200 mcg.
In the case of children, the dosage for lowering TSH levels and treating hypothyroidism varies depending on the child's age, weight, and treatment plan. Synthroid and oral tablets are approved for treating hypothyroidism in children of any age, while levothyroxine oral capsules are not approved for lowering TSH levels in children under the age of 6.
It's important to note that if you want to switch between Synthroid and generic levothyroxine, it's recommended to discuss this with your doctor.
Other thyroid hormones available include brand-name versions of levothyroxine (such as Unithroid, Euthyrox), dessicated thyroid (such as Armour Thyroid, NP Thyroid), and liothyronine (Cytomel). These medications may be used in specific cases, and your doctor will determine the best treatment option for you.
Both Synthroid and levothyroxine are prescribed for certain thyroid conditions, including hypothyroidism caused by Hashimoto disease (also called Hashimoto thyroiditis). In addition, Synthroid and levothyroxine oral tablets and levothyroxine oral capsules are used to lower TSH levels in children of any age with a certain type of thyroid cancer, as recommended by the American Thyroid Association (ATA) guidelines.
Lastly, it's worth mentioning that the manufacturer of the generic levothyroxine competing with the brand-name Synthroid includes companies like Aristo Pharma GmbH (e.g., Eferox® 50) and Hexal AG (e.g., L-Thyrox® HEXAL®), both producing levothyroxine sodium formulations in Germany.
In conclusion, Synthroid and levothyroxine are crucial medications in the treatment of thyroid conditions, and understanding their uses, dosages, and available forms can help patients make informed decisions about their health. Always consult with your healthcare provider for personalised advice.
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