L20 Pill — YELLOW ROUND, 6mm — Levothyroxine
| Imprint | L20 |
|---|---|
| Colour | YELLOW |
| Shape | ROUND |
| Size | 6 |
| Strength | LEVOTHYROXINE SODIUM 0.1 mg |
| Dosage form | Tablet |
| Manufacturer | Major Pharmaceuticals |
| NDC | 0904-6953 |
| Schedule | — |
| Availability | Prescription only |
| Ingredients | LEVOTHYROXINE SODIUM[LEVOTHYROXINE] |
What does this imprint mean?
The imprint "L20" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Levothyroxine
Uses and warnings
BOXED WARNING: "Thyroid hormones should not be used for the treatment of obesity or for weight loss. Larger doses may produce serious or even life threatening manifestations of toxicity." Major Warnings: - Cardiac risks: "Over-treatment may cause an increase in heart rate, cardiac wall thickness, and cardiac contractility and may precipitate angina or arrhythmias"—especially in elderly and cardiac disease patients - Myxedema coma: Do not use oral products; requires intravenous administration - Adrenal crisis: Treat adrenal insufficiency with glucocorticoids before initiating therapy - Narrow therapeutic index: Risk of adverse effects on growth, cardiac function, metabolism, and cognitive function from over/undertreatment - Diabetic control: May "worsen glycemic control and result in increased antidiabetic agent or insulin requirements" - Bone density: Over-replacement increases bone resorption ---
Levothyroxine sodium tablets are indicated for: - Hypothyroidism: "replacement therapy in primary (thyroidal), secondary (pituitary) and tertiary (hypothalamic) congenital or acquired hypothyroidism" - TSH Suppression: "as an adjunct to surgery and radioiodine therapy in the management of thyrotropin-dependent well-differentiated thyroid cancer" Limitations: Not for benign thyroid nodules/nontoxic goiter in iodine-sufficient patients or hypothyroidism during recovery from subacute thyroiditis. ---
How to identify this pill
- • Check the imprint matches exactly: "L20".
- • Confirm the colour (YELLOW) and shape (ROUND).
- • Compare the size (6) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 7f03198f-93b6-4934-a899-2875dab7686d.xml