Product image of Ligosan (Doxycycline Hyclate) supplied by GNH India

Ligosan

Active Ingredient:
Doxycycline Hyclate
Origin:
EU

Ligosan (Doxycycline Hyclate)

Doxycycline hyclate, the active ingredient in Ligosan, is a tetracycline antibiotic presented as a periodontal formulation for local use. It is employed to treat bacterial infections of the gums and supporting structures, particularly in patients with chronic periodontal disease. The product conforms to European Union marketing standards and is manufactured under strict Good Manufacturing Practice guidelines.

GNH India supplies Ligosan as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with a focus on quality assurance, regulatory compliance, and reliable global logistics.

Manufacturer / TM Owner

Kulzer Gmbh

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Indications & Clinical Uses

Ligosan (doxycycline hyclate) is indicated for bacterial infections affecting the periodontal tissues and related oral conditions.

  • Periodontal disease: reduces bacterial load and inflammation, helping to stabilize the periodontal attachment.
  • Acute necrotizing ulcerative gingivitis: controls rapidly progressing infection and alleviates pain and tissue necrosis.
  • Chronic periodontitis: limits disease progression by inhibiting collagenase activity of pathogenic bacteria.
  • Post‑extraction socket infection: prevents bacterial colonisation and promotes healing after dental surgery.

How It Works

  • Doxycycline hyclate binds to the 30S ribosomal subunit of susceptible bacteria, blocking the attachment of aminoacyl‑tRNA to the mRNA‑ribosome complex. This inhibition halts protein synthesis, leading to a bacteriostatic effect that limits bacterial growth and reduces toxin production in periodontal pathogens.

Side Effects

Adverse reactions may occur with doxycycline therapy and should be monitored.

Common Side Effects

  • Nausea
  • Vomiting
  • Diarrhoea
  • Photosensitivity
  • Abdominal pain
  • Altered taste perception

Serious or Rare Side Effects

  • Anaphylactic reaction or severe hypersensitivity
  • Stevens‑Johnson syndrome or toxic epidermal necrolysis
  • Hepatic toxicity (elevated transaminases, hepatitis)
  • Intracranial hypertension (pseudotumor cerebri)
  • Severe photosensitivity leading to burns
  • Clostridioides difficile‑associated colitis

Precautions & Warnings

When prescribing Ligosan, consider the following precautions.

  • Pregnancy: Category D – avoid unless the therapeutic benefit outweighs potential fetal risk.
  • Breastfeeding: Doxycycline may be excreted in milk; assess risk versus benefit.
  • Renal impairment: dose adjustment may be required in patients with reduced clearance.
  • Hepatic disease: use with caution; monitor liver function tests.
  • Photosensitivity: advise patients to limit exposure to strong sunlight and use protective clothing.
  • Store at below 25°C: keep in the original packaging, protect from moisture and direct light.

Avoid Interactions

Doxycycline hyclate can interact with several medicines; monitoring is essential.

Major Interactions (Avoid)

  • Antacids containing aluminium or magnesium: markedly reduce doxycycline absorption.
  • Oral iron supplements: chelate the drug and diminish its bioavailability.
  • Warfarin: may potentiate anticoagulant effect and increase bleeding risk.
  • Retinoids (e.g., isotretinoin): increase the likelihood of intracranial hypertension.
  • Live vaccines: may attenuate vaccine efficacy.

Moderate Interactions (Monitor Closely)

  • Barbiturates: induce hepatic enzymes, lowering doxycycline plasma levels.
  • Carbamazepine: similar enzyme‑inducing effect, potentially reducing efficacy.
  • Oral contraceptives: may decrease contraceptive reliability; advise additional protection.
  • Theophylline: increased clearance may reduce therapeutic effect.
  • Cyclosporine: doxycycline can raise cyclosporine serum concentrations.

Frequently Asked Questions

Ligosan contains doxycycline hyclate and is used to treat bacterial infections of the gums and supporting periodontal tissues. It is prescribed for conditions such as chronic periodontitis, acute necrotizing ulcerative gingivitis, and post‑extraction socket infections, where reducing bacterial load and inflammation is essential for oral health.

Doxycycline hyclate inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit. This prevents the attachment of aminoacyl‑tRNA, halting the formation of new proteins and resulting in a bacteriostatic effect that limits the growth of periodontal pathogens.

The specific dose of Ligosan is determined by the prescribing clinician based on the severity of the infection, patient weight, renal and hepatic function, and local treatment guidelines. Healthcare professionals set the regimen to achieve optimal therapeutic outcomes.

Ligosan is classified as Pregnancy Category D, indicating potential risk to the fetus. It should only be used during pregnancy when the expected benefit justifies the risk. Doxycycline can be excreted in breast milk, so breastfeeding mothers should discuss potential risks with their healthcare provider.

To request Ligosan, visit the product page on gnhindia.com, enter the desired quantity, and submit the enquiry form. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and any required import documentation.

Ligosan (doxycycline) offers a broad spectrum against gram‑negative and some gram‑positive oral bacteria and has anti‑collagenase activity, which can be advantageous in chronic periodontitis. Compared with amoxicillin or metronidazole, doxycycline provides additional anti‑inflammatory benefits but may have a higher risk of photosensitivity and requires careful monitoring of drug interactions.

Ligosan should be stored at temperatures below 25 °C, in its original container, protected from moisture and direct light. Avoid exposing the product to excessive heat or humidity, and keep it out of reach of children.

Ligosan is formulated for periodontal use and is typically applied directly into the periodontal pocket or gingival sulcus by a dental professional. The exact method—gel, chip, or locally placed tablet—depends on the product’s dosage form and the clinician’s treatment plan.

Serious adverse events include severe allergic reactions such as anaphylaxis, Stevens‑Johnson syndrome, hepatic toxicity, intracranial hypertension, and Clostridioides difficile‑associated colitis. Patients should seek immediate medical attention if they experience rash, fever, persistent vomiting, severe abdominal pain, visual changes, or signs of an allergic reaction.

Ligosan is contraindicated in individuals with a known hypersensitivity to doxycycline, other tetracyclines, or any component of the formulation. It should be used with caution, or avoided, in pregnant women (unless clearly needed), nursing mothers, children under eight years of age, and patients with severe renal or hepatic impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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