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

Levothyroxine Serb

Active Ingredient:
Levothyroxine Sodium
Origin:
EU

Levothyroxine Serb (Levothyroxine Sodium)

Levothyroxine Sodium, the active ingredient in Levothyroxine Serb, is a thyroid hormone presented as an injectable solution for intravenous or intramuscular use. It is employed to replace deficient thyroid hormone in patients with hypothyroidism, myxedema, or those requiring thyroid hormone replacement therapy.

GNH India supplies Levothyroxine Serb as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides regulatory documentation to support import and distribution. Clients benefit from reliable logistics and responsive technical support throughout the supply chain.

Manufacturer / TM Owner

Serb Sa

1
Pack/s
This product is added to your enquiry list

Request a Quote

Please fill out the form below and our team will get back to you shortly with pricing and further information.

A minimum order value applies. Our team will confirm the exact amount or quantity after reviewing your requirements.

Indications & Clinical Uses

Levothyroxine Serb is used to address thyroid hormone deficiency across several clinical conditions.

  • Hypothyroidism: restores normal thyroid hormone levels, improving metabolic function and symptom control.
  • Myxedema: provides essential hormone replacement to reverse severe hypothyroid manifestations.
  • Thyroid hormone replacement therapy: maintains euthyroid state in patients after thyroidectomy or radioactive iodine treatment.

How It Works

  • Levothyroxine Sodium supplies exogenous thyroxine (T4), which is converted in peripheral tissues to the active hormone triiodothyronine (T3). Both T4 and T3 bind nuclear thyroid hormone receptors, modulating gene transcription that regulates basal metabolic rate, protein synthesis, and growth. This action restores feedback inhibition of pituitary thyroid‑stimulating hormone (TSH) secretion.

Side Effects

Levothyroxine Serb may cause a range of adverse reactions, varying in frequency and severity.

Common Side Effects

  • Headache: mild to moderate pain in the head region.
  • Fatigue: unusual tiredness or lack of energy.
  • Nausea: feeling of stomach discomfort or urge to vomit.
  • Weight loss: unintended decrease in body weight.
  • Palpitations: awareness of rapid or irregular heartbeat.

Serious or Rare Side Effects

  • Cardiac arrhythmia: abnormal heart rhythm that may be life‑threatening.
  • Angioedema: swelling of the face, lips, tongue, or airway.
  • Severe allergic reaction: rash, itching, swelling, dizziness, or difficulty breathing.
  • Hyperthyroidism symptoms: anxiety, tremor, heat intolerance, or insomnia.
  • Bone loss: accelerated osteoporosis with long‑term overtreatment.

Precautions & Warnings

Before initiating Levothyroxine Serb, clinicians should consider several precautionary measures to ensure safe use.

  • Dose titration: adjust the dose based on thyroid function tests and clinical response.
  • Cardiovascular disease: monitor patients with heart disease closely for angina or arrhythmias.
  • Elderly patients: start with lower doses and increase gradually to avoid overtreatment.
  • Pregnancy and lactation: evaluate risk‑benefit ratio, as thyroid hormone levels are critical during gestation.
  • Drug interactions: review concomitant medications that may affect levothyroxine absorption or metabolism.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Avoid Interactions

Levothyroxine Serb can interact with several medicines, altering its absorption or hormonal effects.

Major Interactions (Avoid)

  • Calcium or iron supplements: bind levothyroxine in the gut, markedly reducing absorption.
  • Proton pump inhibitors: decrease gastric acidity, impairing levothyroxine uptake.
  • Anticonvulsants (e.g., phenytoin, carbamazepine): increase metabolic clearance of levothyroxine.

Moderate Interactions (Monitor Closely)

  • Cholesterol‑lowering agents (e.g., cholestyramine): may modestly reduce absorption.
  • Beta‑blockers: may mask symptoms of excess thyroid hormone.
  • Oral contraceptives: can increase levothyroxine binding, requiring dose adjustment.

Frequently Asked Questions

Levothyroxine Serb is an injectable form of levothyroxine sodium used to replace deficient thyroid hormone in patients with hypothyroidism, myxedema, or those who need thyroid hormone replacement after thyroidectomy or radioactive iodine therapy.

Levothyroxine sodium provides exogenous T4, which is converted in peripheral tissues to the active hormone T3. Both hormones bind nuclear thyroid receptors, influencing gene expression that controls metabolism, growth, and development, thereby normalising the body's thyroid status.

The dose of Levothyroxine Serb is individualised by the prescribing clinician based on the patient’s age, weight, severity of thyroid deficiency, and serial thyroid function test results. No fixed regimen is provided; the prescriber sets the appropriate dose.

Safety data for Levothyroxine Serb in pregnancy and lactation are limited. Because maternal thyroid hormone is essential for fetal development, the drug may be used when the benefit outweighs potential risk. Decisions should be made by a healthcare professional.

To order Levothyroxine Serb, 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 import documentation.

Levothyroxine Serb is an injectable formulation, whereas many alternatives are oral tablets or capsules. Injectable delivery bypasses gastrointestinal absorption issues and may be preferred in patients with malabsorption, severe hypothyroidism, or when rapid hormone replacement is required.

Levothyroxine Serb should be stored at 2‑8 °C in a refrigerator, protected from light. Do not freeze or shake the vial. Keep the product in its original packaging until use to maintain stability.

Levothyroxine Serb is administered by a qualified healthcare professional via intravenous or intramuscular injection. The route, injection site and volume are determined by the prescriber according to the patient’s clinical needs.

Serious risks include cardiac arrhythmias, angioedema, severe allergic reactions, and signs of overtreatment such as hyperthyroidism (e.g., anxiety, tremor, heat intolerance). Prompt medical attention is required if any of these occur.

Levothyroxine Serb should be avoided in patients with known hypersensitivity to levothyroxine or any excipients, and in individuals with untreated adrenal insufficiency or uncorrected thyrotoxic heart disease. Contra‑indications are determined by the prescribing clinician.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

Disclaimer

At GNH India, we aim to provide information that is expert-reviewed, accurate, and reliable. However, all content on this platform is intended for general informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. While efforts are made to maintain accuracy and currency, the information may contain errors, omissions, or may not reflect the latest developments. Always consult a qualified healthcare professional regarding any medical concerns.

All product names, brand names, trademarks and registered trademarks displayed on this website are the property of their respective owners. This website and its operator are not affiliated with, endorsed by, or authorized by any such trade mark owners unless expressly stated. Any reference to product names or trademarks is made solely for descriptive and informational purposes. No commercial relationship, sponsorship, approval, or association with any trademark owner should be inferred. Information provided herein does not constitute promotion, advertising, or an offer for sale of any medicinal product and is intended solely for general informational purposes.

All trademarks and brand names displayed on this website are used strictly in accordance with the provisions of the Trade Marks Act, 1999, specifically Sections 30 and 30(1) governing fair use. Trademark ownership has been accurately attributed under the "Manufacturer/ TM Owner" section in compliance with statutory requirements.

Related Products

Other formulations containing Levothyroxine Sodium

A

A
A

A
A

A
A

A

Browse all products →

Ordering Process

Simple, Secure, and Seamless

Learn how our streamlined ordering process guarantees fast, compliant, and reliable access to essential medicines worldwide.

Quote request form

01

Submit Quote Request Form

Tell us what medications you need by filling out our simple form and uploading a valid document.

Price estimate review

02

We Review & Send Estimate

Our licensed pharmacists will verify your details and provide you with a detailed cost estimate.

Secure payment

03

Confirm & Make Payment

Discuss any queries, approve the estimate, and complete your payment.

Worldwide delivery

04

Get Delivered

Your medicines, safely packed and delivered to your door or nearest airport — hassle-free.

Regulatory recognitions

Quality You Can Trust

Our internationally recognized certifications underscore our commitment to safety, quality, and excellence.

SGS GSDP Certification

GSDP Compliant from SGS

URS ISO 9001

URS ISO 9001 Certification

FDA Maharashtra

Licensed by FDA Maharashtra

IEC License DGFT

IEC License issued by DGFT