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Levothyroxine sodium (T4), marketed under the brand name Synthroid, is a medication that is indicated for hypothyroidism and pituitary thyrotropin (Thyroid-Stimulating Hormone, TSH) suppression. Farmington Drugs & Medical Supplies provides  patients who need Levothyroxine prescriptions at our home pharmacy or via free local deliveries for prescription refills.

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More information

  • Usage

    What is levothyroxine? Levothyroxine, marketed under the brand name Synthroid and others, is a medication that contains levothyroxine (T4) sodium. Synthetic T4 in levothyroxine is based on T4 produced by the thyroid gland. Oral levothyroxine sodium has the same physiological effect as endogenous T4 and helps maintain normal T4 levels in the setting of a T4 deficiency. As much as 80% of the T4 ingested orally is absorbed by the GI tract. Most T4 is bound by plasma proteins and, is this state, is not considered metabolically active. Much of the T4 in the body is broken down by the liver. T4 is eliminated through the urine and the stool. The adequacy of therapy with levothyroxine should be assessed through periodic monitoring of T4 and TSH test levels in addition to clinical status. Levothyroxine and a similar medication, liothyronine, differ in that levothyroxine is T4 while its counterpart is T3 thyroid hormone. Both hormones are found in Armour Thyroid medication.

  • Levothyroxine – Side Effects

    Levothyroxine, like all medications, has side effects when used. Examples of side effects from levothyroxine tablet use include fatigue, increased appetite, weight loss, heat intolerance, fever and sweating. More severe side effects include changes in the central nervous system, palpitations, increased blood pressure and more. People who have a hypersensitivity or allergic reaction to levothyroxine should avoid using it. It is not recommended to drink alcohol while taking levothyroxine. Levothyroxine is not indicated for suppression of benign thyroid nodules and nontoxic diffuse goiter in iodine-sufficient patients. Levothyroxine is not indicated for treatment of hypothyroidism during the recovery phase of subacute thyroiditis. All people using levothyroxine should consult with their doctor or medical provider and a pharmacist before taking levothyroxine pills.

  • Cost Information

    Generic levothyroxine tablets are affordable. At many pharmacies, levothyroxine 25 mcg tablets cost approximately 15 cents per tablet. Levothyroxine coupons may be available from the manufacturer or other sources. Farmington Drugs & Medical Supplies takes pride in offering the most cost efficient services and prescriptions to our patients.

  • Dosage

    Levothyroxine is available as tablets for oral administration in doses ranging from 25 mcg to 300 mcg. Levothyroxine tablets also contain inactive ingredients such as acacia, confectioner’s sugar and magnesium stearate. Levothyroxine should be stored at 25° C and be protected from light and moisture. The actual levothyroxine dose depends on a variety of factors such as age, weight, other medical conditions and other medications being used but the ultimate regimen depends on the judgement of the prescribing medical provider. Levothyroxine can take up to six weeks before reaching the peak therapeutic effect. Routine assessment of thyroid lab testing is necessary for levothyroxine dosing.

  • FDA Information

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Given the evolving nature of medicine and science, this information might not be accurate and should not be construed as medical advice or diagnosis / treatment recommendations. Please consult a licensed medical provider if you have additional questions.

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