L-Thyroxin 175 1 A Pharma (Levothyroxine Sodium)

Levothyroxine is a synthetic analogue of thyroxine (T4). After oral absorption, it circulates in the bloodstream and binds to nuclear thyroid hormone receptors in target cells, regulating gene expression that controls basal metabolic rate, protein synthesis, and growth. By restoring normal T4 levels, it normalizes the hypothalamic‑pituitary‑thyroid feedback loop.

The appropriate dose of L-Thyroxin is individualized by the prescribing clinician based on the patient’s age, weight, severity of thyroid deficiency, and laboratory values. Physicians typically start with a low dose and titrate upward, monitoring serum TSH and free T4 to achieve a therapeutic range.

Levothyroxine is generally considered safe in pregnancy and lactation when medically indicated, as untreated hypothyroidism can harm both mother and fetus. However, dosing may need adjustment because physiological changes increase hormone requirements. Pregnant or nursing patients should be closely monitored by their healthcare provider.

To order L-Thyroxin, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements), and necessary import documentation.

Levothyroxine is the most widely used synthetic thyroid hormone because it mimics natural T4 and has a long half‑life, allowing once‑daily dosing. Alternatives such as liothyronine (T3) act more rapidly but have a shorter duration and may require multiple daily doses. Combination therapy is sometimes considered, but levothyroxine remains the standard first‑line agent.

L-Thyroxin tablets should be stored at temperatures below 25 °C, in their original container, protected from moisture and direct light. Avoid storing in bathrooms or near heat sources. Keep out of reach of children and do not use if the packaging is damaged or the tablets appear discolored.

L-Thyroxin is taken orally, usually on an empty stomach, at least 30 minutes before breakfast or any other medication. Swallow the tablet whole with a glass of water; do not crush or chew. Consistency in timing and food intake helps maintain stable blood levels.

Serious risks include cardiac complications such as angina, arrhythmias, or myocardial infarction, especially in patients with pre‑existing heart disease. Over‑replacement can lead to symptoms of hyperthyroidism, including severe bone loss (osteoporosis) and atrial fibrillation. Prompt medical attention is required if chest pain, palpitations, or severe anxiety develop.

Levothyroxine should be avoided in individuals with untreated adrenal insufficiency, acute myocardial infarction, or uncontrolled thyrotoxicosis. Patients with known hypersensitivity to levothyroxine or any excipients in the tablet formulation should also not use the product. Clinicians must assess each patient’s medical history before initiating therapy.