Product image of L-Thyroxin Plus Henning (Levothyroxine Sodium, Potassium Iodide) supplied by GNH India

L-Thyroxin Plus Henning

Active Ingredient:
Levothyroxine Sodium, Potassium Iodide
Origin:
EU

L-Thyroxin Plus Henning (Levothyroxine Sodium, Potassium Iodide)

Levothyroxine sodium, the active ingredient in L-Thyroxin Plus Henning, is a thyroid hormone replacement presented as an oral formulation for oral use. Together with potassium iodide, it supplies synthetic thyroxine (T4) to replace deficient thyroid hormone, thereby treating hypothyroidism in adults and children.

GNH India supplies L-Thyroxin Plus Henning as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies, clinics and other healthcare providers worldwide.

Manufacturer / TM Owner

Sanofi-Aventis Deutschland Gmbh

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Indications & Clinical Uses

L-Thyroxin Plus Henning is used to manage thyroid hormone deficiency within the endocrine system.

  • Hypothyroidism: restores normal thyroid hormone levels, improving metabolic function.
  • Congenital hypothyroidism: provides essential hormone for growth and development in newborns.
  • Post‑thyroidectomy hormone replacement: maintains euthyroid state after surgical removal of the thyroid gland.

How It Works

  • Levothyroxine sodium is a synthetic form of the natural thyroid hormone thyroxine (T4). After oral absorption, it is converted to the active hormone triiodothyronine (T3) in peripheral tissues, binding to nuclear thyroid hormone receptors and regulating gene transcription that controls metabolism, growth, and development.

Side Effects

L-Thyroxin Plus Henning may cause a range of adverse reactions.

Common Side Effects

  • Headache: mild to moderate intensity.
  • Insomnia: difficulty falling or staying asleep.
  • Palpitations: sensation of rapid or irregular heartbeat.
  • Weight loss: unintended reduction in body weight.
  • Heat intolerance: increased sensitivity to warm temperatures.
  • Tremor: fine shaking of hands or limbs.

Serious or Rare Side Effects

  • Cardiac arrhythmia: abnormal heart rhythm that may be life‑threatening.
  • Angina pectoris: chest pain due to reduced blood flow to the heart.
  • Severe hyperthyroidism: symptoms such as fever, agitation, and rapid weight loss.
  • Allergic reaction: rash, itching, swelling, or difficulty breathing.
  • Bone loss: accelerated osteoporosis with long‑term overtreatment.
  • Myopathy: muscle weakness or pain.

Precautions & Warnings

Before initiating therapy with L-Thyroxin Plus Henning, consider the following precautions.

  • Dose adjustment: monitor thyroid‑stimulating hormone (TSH) levels and titrate dose accordingly.
  • Cardiovascular disease: use caution in patients with ischemic heart disease or arrhythmias.
  • Pregnancy: consult a healthcare professional; dose may need adjustment.
  • Elderly patients: start with a lower dose and increase gradually.
  • Drug interactions: review all concomitant medications for potential effects on absorption or metabolism.
  • Store at ambient temperature: keep in the original container, protect from moisture and direct sunlight.

Avoid Interactions

L-Thyroxin Plus Henning can interact with several medicines, affecting its efficacy or safety.

Major Interactions (Avoid)

  • Amiodarone: may cause excess thyroid hormone levels.
  • Antacids containing aluminum or magnesium: reduce levothyroxine absorption.
  • Warfarin: levothyroxine may alter INR and increase bleeding risk.

Moderate Interactions (Monitor Closely)

  • Beta‑blockers: may mask symptoms of excess thyroid hormone.
  • Estrogen therapy: can increase levothyroxine requirement.
  • Cholestyramine or colestipol: may decrease levothyroxine absorption.

Frequently Asked Questions

L-Thyroxin Plus Henning is prescribed to treat hypothyroidism and related conditions by providing synthetic thyroid hormone (levothyroxine) and potassium iodide, helping restore normal metabolic function in patients with insufficient endogenous hormone production.

Levothyroxine sodium is a synthetic form of thyroxine (T4). After oral absorption, it is converted to the active hormone triiodothyronine (T3) in peripheral tissues, where it binds to nuclear thyroid hormone receptors and regulates gene expression that controls metabolism, growth, and development.

The dose of L-Thyroxin Plus Henning is individualized and set by a qualified prescriber based on the patient’s age, weight, thyroid function tests, and clinical response. Patients should follow the dosing instructions provided by their healthcare professional.

Levothyroxine is generally considered safe in pregnancy and breastfeeding when prescribed by a physician, as untreated hypothyroidism can harm both mother and child. Dosage may need adjustment, so pregnant or nursing patients should consult their healthcare provider for monitoring.

To order L-Thyroxin Plus Henning, submit an enquiry on the product page at gnhindia.com with the required quantity. GNH India supplies hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and import documentation.

L-Thyroxin Plus combines levothyroxine sodium with potassium iodide, offering both hormone replacement and supplemental iodine. Compared with levothyroxine‑only products, the added iodide may be beneficial in iodine‑deficient populations, though clinical choice depends on individual patient needs and physician judgment.

L-Thyroxin Plus should be stored at ambient temperature, below 25 °C, in its original packaging to protect from moisture and light. Keep the product out of reach of children and do not use it after the expiry date printed on the label.

L-Thyroxin Plus is taken orally, usually on an empty stomach, at least 30 minutes before breakfast or any other medication. The tablet should be swallowed whole with a full glass of water and not crushed or chewed.

Serious risks include cardiac arrhythmias, angina, severe hyperthyroidism, allergic reactions, and bone loss with long‑term overtreatment. Patients should be monitored regularly for symptoms and have thyroid function tests performed to adjust dosing as needed.

L-Thyroxin Plus is contraindicated in patients with known hypersensitivity to levothyroxine, potassium iodide, or any excipients in the formulation. It should also be avoided in individuals with untreated adrenal insufficiency or acute myocardial infarction until these conditions are stabilized.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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