Product image of Levotirsol (Levothyroxine Sodium) supplied by GNH India

Levotirsol

Active Ingredient:
Levothyroxine Sodium
Origin:
EU

Levotirsol (Levothyroxine Sodium)

Levothyroxine Sodium, the active ingredient in Levotirsol, is a thyroid hormone presented as a tablet for oral use. It replaces or supplements endogenous thyroid hormone in patients with hypothyroidism, after thyroidectomy, or with goiter.
GNH India supplies Levotirsol as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Ibsa Farmaceutici Italia

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Indications & Clinical Uses

Levotirsol is a synthetic thyroid hormone used to treat disorders of thyroid hormone deficiency.

  • Hypothyroidism: restores normal metabolic rate and alleviates symptoms of low thyroid function.
  • Post‑thyroidectomy replacement: provides necessary hormone after surgical removal of the thyroid gland.
  • Goiter: reduces gland enlargement by normalising circulating thyroid hormone levels.

How It Works

  • Levothyroxine Sodium is a synthetic form of thyroxine (T4) that is absorbed into the bloodstream, binds to nuclear thyroid hormone receptors, and modulates gene transcription. This restores normal metabolic activity, growth, and development by compensating for deficient endogenous hormone production.

Side Effects

Levotirsol may cause adverse reactions that vary in frequency and severity.

Common Side Effects

  • Headache: mild to moderate pain in the head region.
  • Insomnia: difficulty falling or staying asleep.
  • Weight loss: unintended reduction in body weight.
  • Tremor: fine shaking of the hands or limbs.
  • Palpitations: awareness of rapid or irregular heartbeat.
  • Heat intolerance: increased sensitivity to warm environments.

Serious or Rare Side Effects

  • Cardiac arrhythmia: abnormal heart rhythm that may be life‑threatening.
  • Angina or myocardial infarction: chest pain or heart attack due to increased cardiac demand.
  • Osteoporosis: decreased bone density with long‑term overtreatment.
  • Adrenal insufficiency: exacerbation of underlying adrenal disorders.
  • Severe allergic reaction: rash, swelling, or anaphylaxis.
  • Hyperthyroid crisis: sudden excessive thyroid activity requiring emergency care.

Precautions & Warnings

When prescribing Levotirsol, clinicians should consider several safety measures.

  • Dose adjustment: titrate based on regular TSH monitoring to avoid over‑ or under‑replacement.
  • Cardiovascular disease: use caution in patients with angina, arrhythmias, or recent myocardial infarction.
  • Pregnancy: limited data; prescribe only if benefits outweigh potential risks.
  • Elderly patients: initiate therapy at a lower dose and monitor closely.
  • Drug interactions: review concomitant medications that may affect absorption or metabolism.
  • Store at ambient temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Levotirsol can interact with several medicines, altering its effectiveness or safety.

Major Interactions (Avoid)

  • Calcium supplements: reduce levothyroxine absorption.
  • Iron salts: decrease oral bioavailability of the hormone.
  • Antacids containing aluminum or magnesium: impair absorption.
  • Cholestyramine: binds levothyroxine and limits uptake.
  • Sucralfate: interferes with gastrointestinal absorption.

Moderate Interactions (Monitor Closely)

  • Warfarin: may enhance anticoagulant effect, requiring INR monitoring.
  • Estrogen therapy: can increase levothyroxine dosage requirements.
  • Diabetes medications: thyroid hormone changes may affect glucose control.
  • SSRIs (antidepressants): may alter thyroid hormone levels.
  • Statins (lipid‑lowering agents): possible changes in efficacy or side‑effect profile.

Frequently Asked Questions

Levotirsol provides synthetic thyroid hormone for patients with hypothyroidism, for hormone replacement after thyroidectomy, and to manage goiter caused by thyroid hormone deficiency.

Levothyroxine Sodium is a synthetic form of T4 that is absorbed, enters cells, binds to nuclear thyroid receptors, and regulates gene expression, thereby restoring normal metabolic activity and growth.

The appropriate dose of Levotirsol is individualized and set by a prescriber based on factors such as TSH levels, age, weight, cardiac status, and other clinical considerations.

Safety data in pregnancy and lactation are limited; Levotirsol should be used only if the potential benefit justifies any possible risk, and decisions should be made in consultation with a healthcare professional.

Submit an enquiry on the Levotirsol 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 and necessary import documentation.

Levotirsol contains levothyroxine, the standard synthetic T4 used for thyroid replacement. Compared with combination T4/T3 products, it offers a stable, predictable pharmacokinetic profile and is the most widely prescribed option for long‑term management.

Store Levotirsol at ambient temperature, below 25 °C, in the original packaging. Keep it away from moisture, heat, and direct sunlight to maintain potency.

Levotirsol is taken orally, usually on an empty stomach 30‑60 minutes before breakfast, with a full glass of water. Swallow the tablet whole; do not crush or chew it.

Serious risks include cardiac arrhythmias, angina or myocardial infarction, severe bone loss with overtreatment, adrenal insufficiency, and rare allergic reactions. Patients should be monitored for symptoms such as chest pain, palpitations, or unexplained fractures.

Levotirsol is contraindicated in patients with known hypersensitivity to levothyroxine or any excipients, untreated adrenal insufficiency, and in those who have recently experienced a myocardial infarction without appropriate cardiac monitoring.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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