Product image of Levothyroxine Abdi Farma (Levothyroxine Sodium) supplied by GNH India

Levothyroxine Abdi Farma

Active Ingredient:
Levothyroxine Sodium
Origin:
EU

Levothyroxine Abdi Farma (Levothyroxine Sodium)

Levothyroxine, the active ingredient in Levothyroxine Abdi Farma, is a thyroid hormone presented as an oral dosage form for oral use. It replaces deficient endogenous hormone and is used to treat hypothyroidism, support patients after thyroidectomy, and manage goiter.
GNH India supplies Levothyroxine Abdi Farma as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Abdi Farma, Unipessoal Lda

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Indications & Clinical Uses

Levothyroxine acts on the thyroid hormone pathway to restore normal metabolic function.

  • Hypothyroidism: normalizes thyroid hormone levels and alleviates symptoms such as fatigue and weight gain.
  • Post‑thyroidectomy hormone replacement: provides the missing thyroxine after surgical removal of the thyroid gland.
  • Goiter: helps reduce gland enlargement by supplying adequate hormone and suppressing TSH stimulation.

How It Works

  • Levothyroxine is a synthetic form of thyroxine (T4) that is absorbed after oral administration and enters systemic circulation. It binds to nuclear thyroid hormone receptors in target cells, modulating gene transcription that increases basal metabolic rate, supports protein synthesis, and promotes normal growth and development.

Side Effects

Levothyroxine may cause a range of adverse reactions, most of which are dose‑related.

Common Side Effects

  • Headache: mild to moderate pain in the head region.
  • Insomnia: difficulty falling or staying asleep.
  • Nervousness: increased anxiety or jitteriness.
  • Weight loss: unintended reduction in body weight.
  • Palpitations: awareness of rapid or irregular heartbeats.
  • Heat intolerance: feeling unusually warm.

Serious or Rare Side Effects

  • Chest pain: discomfort or pressure in the chest area.
  • Arrhythmia: abnormal heart rhythm that may require medical attention.
  • Severe allergic reaction: rash, swelling, or difficulty breathing.
  • Bone loss: accelerated reduction in bone mineral density.
  • Severe tachycardia: markedly fast heart rate.

Precautions & Warnings

Before initiating therapy, certain precautions should be observed.

  • Thyroid function monitoring: check serum TSH and free T4 levels regularly to adjust dose.
  • Dose titration: increase dosage gradually to avoid overtreatment.
  • Adrenal insufficiency: ensure adequate glucocorticoid replacement before starting levothyroxine.
  • Elderly patients: start with lower doses and monitor for cardiac effects.
  • Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Avoid Interactions

Levothyroxine can interact with several medicines, affecting its absorption or activity.

Major Interactions (Avoid)

  • Antacids containing aluminum or magnesium: reduce levothyroxine absorption.
  • Calcium supplements: bind levothyroxine in the gut and lower its bioavailability.
  • Iron preparations: significantly decrease levothyroxine uptake.

Moderate Interactions (Monitor Closely)

  • Warfarin: may enhance anticoagulant effect, requiring INR monitoring.
  • Amiodarone: can alter thyroid hormone metabolism and necessitate dose adjustment.

Frequently Asked Questions

Levothyroxine Abdi Farma is prescribed for patients with hypothyroidism, for thyroid hormone replacement after total or partial thyroidectomy, and for the management of goiter. In each case, the medication supplies the missing thyroxine hormone, helping to restore normal metabolic activity.

Levothyroxine is a synthetic form of the natural thyroid hormone T4. After oral absorption, it enters cells and binds to nuclear thyroid hormone receptors, influencing gene expression that regulates metabolism, growth, and development. This action compensates for deficient endogenous hormone production.

The appropriate dose of Levothyroxine Abdi Farma is individualized by a healthcare professional based on factors such as age, weight, severity of hormone deficiency, and laboratory thyroid function tests. Patients should follow the prescriber’s instructions and not adjust the dose on their own.

Levothyroxine is generally considered safe in pregnancy and lactation when prescribed by a physician, as untreated hypothyroidism can harm both mother and fetus. However, dosing may need adjustment, and the prescriber should monitor thyroid function closely throughout pregnancy and while breastfeeding.

To place an order, 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 and any necessary import documentation.

Levothyroxine is the standard synthetic T4 replacement and is often preferred for its long half‑life and stable serum levels. Alternatives such as liothyronine (synthetic T3) have a shorter half‑life and may be used in specific situations, but levothyroxine remains the first‑line therapy for most patients.

Levothyroxine Abdi Farma should be stored at room temperature, below 25 °C, in its original packaging. Keep the product away from moisture, excessive heat and direct sunlight to maintain potency.

The medication is taken orally, usually on an empty stomach, at least 30 minutes before breakfast. Swallow the tablet whole with a glass of water; do not crush or chew it, as this may affect absorption.

Serious risks include cardiac arrhythmias, chest pain, severe tachycardia, and allergic reactions such as rash or swelling. Over‑replacement can lead to hyperthyroid symptoms, so regular monitoring of thyroid function tests is essential to avoid these complications.

Levothyroxine should be avoided in patients with untreated adrenal insufficiency, acute myocardial infarction, or known hypersensitivity to levothyroxine or any excipients in the formulation. Clinicians must evaluate each patient’s medical history before prescribing.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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