Product image of Ledermycin (Demeclocycline Hydrochloride) supplied by GNH India

Ledermycin

Active Ingredient:
Demeclocycline Hydrochloride
Origin:
EU

Ledermycin (Demeclocycline Hydrochloride)

Demeclocycline Hydrochloride, the active ingredient in Ledermycin, is a tetracycline antibiotic presented as an oral formulation for systemic use. It is employed to treat acne vulgaris and to manage the syndrome of inappropriate antidiuretic hormone secretion (SIADH) in adult patients. It is indicated for adult patients who require long‑term therapy and is available under prescription only.

GNH India supplies Ledermycin 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 for each batch.

Manufacturer / TM Owner

Mercury Pharmaceuticals Ltd.

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Indications & Clinical Uses

Demeclocycline Hydrochloride is used in conditions where bacterial protein synthesis inhibition or antidiuretic hormone modulation is required.

  • Acne vulgaris: reduces inflammatory lesions and bacterial colonization on the skin.
  • Syndrome of inappropriate antidiuretic hormone secretion (SIADH): helps correct hyponatremia by inducing nephrogenic diabetes insipidus.

How It Works

  • Demeclocycline binds to the 30S subunit of bacterial ribosomes, preventing the attachment of aminoacyl‑tRNA to the mRNA‑ribosome complex. This inhibition halts protein synthesis, producing a bacteriostatic effect against a broad range of susceptible organisms. In the renal collecting ducts, the drug interferes with antidiuretic hormone signaling, reducing water reabsorption and promoting diuresis, which underlies its use in SIADH.

Side Effects

Demeclocycline Hydrochloride may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Nausea
  • Diarrhea
  • Photosensitivity
  • Taste disturbance

Serious or Rare Side Effects

  • Hepatic toxicity
  • Stevens‑Johnson syndrome
  • Anaphylactic reaction

Precautions & Warnings

Before prescribing Demeclocycline, clinicians should consider several precautionary measures.

  • Assess renal function: adjust use in patients with impaired clearance.
  • Monitor liver enzymes: discontinue if significant hepatic injury occurs.
  • Avoid in children under 8 years: risk of permanent tooth discoloration.
  • Contraindicated in pregnancy: potential teratogenic effects; use only if benefits outweigh risks.
  • Caution in patients on lithium: may increase lithium levels.
  • Store at ambient temperature: keep in the original pack, protect from moisture.

Avoid Interactions

Demeclocycline can interact with other medicines, altering efficacy or safety.

Major Interactions (Avoid)

  • Concurrent tetracyclines: additive toxicity.
  • Antacids or supplements containing aluminum, magnesium, calcium, or iron: reduce absorption.
  • Warfarin: may enhance anticoagulant effect and increase INR.
  • Isotretinoin: heightened risk of intracranial hypertension.

Moderate Interactions (Monitor Closely)

  • Oral contraceptives: reduced hormonal efficacy, consider backup method.
  • Macrolide antibiotics: increased gastrointestinal adverse effects.
  • Lithium: possible elevation of serum lithium concentrations.

Frequently Asked Questions

Ledermycin contains demeclocycline hydrochloride and is prescribed to treat moderate to severe acne vulgaris and to manage the syndrome of inappropriate antidiuretic hormone secretion (SIADH), a condition that causes low blood sodium levels.

The drug binds to the 30S ribosomal subunit of bacteria, blocking the attachment of aminoacyl‑tRNA and halting protein synthesis, which limits bacterial growth. In the kidneys it reduces the response to antidiuretic hormone, promoting water excretion and correcting hyponatremia.

The dosage of Ledermycin is determined by the prescribing clinician based on the specific indication, patient age, weight, renal and hepatic function, and other individual factors. Patients should follow the prescriber’s instructions and not adjust the dose on their own.

Pregnancy safety data for demeclocycline are limited, and the product is generally classified as contraindicated or used only when the potential benefit justifies the risk. Breastfeeding is not recommended because the drug can be excreted in milk and may affect the infant.

To request Ledermycin, 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.

Ledermycin (demeclocycline) shares the core mechanism of protein synthesis inhibition with other tetracyclines but has a longer half‑life and a unique ability to antagonize antidiuretic hormone, making it useful for SIADH. Its side‑effect profile, especially photosensitivity and potential hepatic effects, may differ from agents such as doxycycline or minocycline.

Ledermycin should be stored at ambient temperature, preferably below 25 °C, in its original packaging to protect it from moisture and light. Do not store in areas of high humidity or near heat sources.

Ledermycin is taken orally, usually with a full glass of water. It can be taken with or without food, but patients should avoid simultaneous intake of antacids, calcium, magnesium or iron supplements, as these can reduce absorption.

Serious adverse events include hepatic toxicity, severe photosensitivity reactions, Stevens‑Johnson syndrome, and anaphylaxis. Patients should seek immediate medical attention if they develop jaundice, rash that spreads, blistering skin, or signs of an allergic reaction such as swelling or difficulty breathing.

Ledermycin is contraindicated in children younger than eight years, pregnant women, and patients with known hypersensitivity to tetracyclines. It should also be avoided in individuals with severe hepatic impairment or those taking interacting medications listed under major interactions.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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