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Levothyroxine sodium — Description, Dosage, Side Effects | PillsCard
Rx
Levothyroxine sodium
200 mikrogramów, Tabletki
INN: Levothyroxinum natricum
Data updated: 2026-04-24
Available in:
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Form
Tabletki
Dosage
200 mikrogramów
Route
doustna
Storage
Storage Conditions Store at 25°C (77°F); excursions permitted to 15° C to 30° C (59° F to 86° F) [see USP Controlled Room Temperature]. Levothyroxine Sodium Tablets should be protected from light and moisture.
11 DESCRIPTION Levothyroxine sodium tablets, USP is L-thyroxine (T4) and contains synthetic crystalline L-3,3’,5,5’-tetraiodothyronine sodium salt. Synthetic T4 is chemically identical to that produced in the human thyroid gland. Levothyroxine (T4) sodium has an empirical formula of C 15 H 10 I 4 N NaO 4 • H 2 O, molecular weight of 798.86 (anhydrous), and structural formula as shown: Levothyroxine sodium tablets, USP for oral administration are supplied 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, and 300 mcg. Each levothyroxine sodium tablet contains the inactive ingredients microcrystalline sodium, light magnesium oxide, sodium starch glycolate and sodium stearyl fumarate. Levothyroxine sodium tablets, USP contain no ingredients made from a gluten-containing grain (wheat, barley, or rye). Table 9 provides a listing of the color additives by tablet strength: Table 9. Levothyroxine Sodium Tablet Color Additives Strength (mcg) Color additive(s) 25 FD&C Yellow No. 6 Aluminum Lake 50 None 75 FD&C Red No. 40 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake 88 FD&C Blue No. 2 Aluminum Lake, FD&C Yellow No. 5 Aluminum Lake 100 FD&C Yellow No. 5 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake 112 FD&C Red No. 40 Aluminum Lake, Carmine 125 FD&C Yellow No. 6 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake 137 FD&C Blue No. 1 Aluminum Lake 150 FD&C Blue No. 2 Aluminum Lake 175 FD&C Blue No. 1 Aluminum Lake, Carmine 200 FD&C Red No. 40 Aluminum Lake 300 D&C Yellow No. 10 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake Levothyroxine sodium tablets, USP meets USP Dissolution Test 7. description
⚠️ Warnings
WARNINGS WARNING: Thyroid hormones, including Levothyroxine Sodium Tablets, USP, either alone or with other therapeutic agents, should not be used for the treatment of obesity for weight loss. In euthyroid patients, doses within the range of daily hormonal requirements are ineffective for weight reduction. Larger doses may produce serious or even life threatening manifestations of toxicity, particularly when given in association with sympathomimetic amines such as those used for their anorectic effects. Levothyroxine sodium should not be used in the treatment of male or female infertility unless this condition is associated with hypothyroidism. In patients with nontoxic diffuse goiter or nodular thyroid disease, particularly the elderly or those with underlying cardiovascular disease, levothyroxine sodium therapy is contraindicated if the serum TSH level is already suppressed due to the risk of precipitating overt thyrotoxicosis (see CONTRAINDICATIONS ). If the serum TSH level is not suppressed, Levothyroxine Sodium Tablets, USP should be used with caution in conjunction with careful monitoring of thyroid function for evidence of hyperthyroidism and clinical monitoring for potential associated adverse cardiovascular signs and symptoms of hyperthyroidism.
