Product image of Isotretinoin Gap (Isotretinoin) supplied by GNH India

Isotretinoin Gap

Active Ingredient:
Isotretinoin
Origin:
EU

Isotretinoin Gap (Isotretinoin)

Isotretinoin, the active ingredient in Isotretinoin Gap, is a retinoid presented as an oral formulation for systemic use. It is indicated for severe nodular acne and acne vulgaris that has not responded to conventional therapies, primarily in adolescents and adults.

GNH India supplies Isotretinoin Gap as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Gap S.A.

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Indications & Clinical Uses

Isotretinoin is a retinoid that acts on the pilosebaceous unit to treat severe forms of acne.

  • Severe nodular acne: reduces inflammatory lesions, prevents new nodule formation and decreases sebum output.
  • Acne vulgaris refractory to other treatments: clears existing lesions and limits further breakouts.
  • Cystic acne: diminishes cyst formation and promotes faster skin healing.

How It Works

  • Isotretinoin binds to nuclear retinoic acid receptors, modulating keratinocyte differentiation and proliferation, leading to reduced follicular hyperkeratinisation. It also shrinks sebaceous glands, lowers sebum production, and exerts anti‑inflammatory effects, collectively addressing the pathogenic factors of severe acne.

Side Effects

Isotretinoin may cause a range of adverse reactions.

Common Side Effects

  • Dry skin and mucous membranes: dryness of skin, lips, and eyes.
  • Cheilitis: cracking and inflammation of the lips.
  • Nasal irritation: frequent nosebleeds.
  • Photosensitivity: increased susceptibility to sunburn.
  • Elevated triglycerides: rise in blood lipid levels.

Serious or Rare Side Effects

  • Teratogenicity: severe birth defects if exposure occurs during pregnancy.
  • Depression or suicidal ideation: mood changes requiring monitoring.
  • Inflammatory bowel disease: onset or worsening of Crohn's disease or ulcerative colitis.
  • Hepatotoxicity: significant elevation of liver enzymes.

Precautions & Warnings

Isotretinoin requires careful monitoring and specific safety measures.

  • Pregnancy: contraindicated; ensure effective contraception before, during, and after therapy.
  • Liver function: obtain baseline and periodic liver enzyme tests.
  • Lipid profile: monitor triglycerides and cholesterol regularly.
  • Vitamin A intake: avoid additional vitamin A supplements to prevent toxicity.
  • Store below 25°C: keep in the original packaging, protect from moisture and direct light.

Avoid Interactions

Isotretinoin can interact with several medications, altering efficacy or safety.

Major Interactions (Avoid)

  • Tetracyclines: increased risk of intracranial hypertension.
  • Vitamin A supplements: additive retinoid toxicity.
  • Systemic corticosteroids: may reduce isotretinoin effectiveness.

Moderate Interactions (Monitor Closely)

  • Oral antifungals (e.g., ketoconazole): may affect isotretinoin metabolism.
  • Warfarin: potential alteration of INR values.
  • Enzyme inducers (e.g., phenobarbital, carbamazepine): may lower isotretinoin plasma levels.

Frequently Asked Questions

Isotretinoin Gap is prescribed for severe nodular acne and acne vulgaris that have not improved with standard topical or oral antibiotics. It targets deep, inflamed lesions and helps reduce new breakouts by decreasing sebum production and normalising skin cell turnover.

Isotretinoin binds to retinoic acid receptors in the nucleus of skin cells, altering gene expression. This reduces keratinocyte proliferation, shrinks sebaceous glands, lowers sebum output, and provides anti‑inflammatory effects, collectively addressing the key factors that drive severe acne.

The dosage of Isotretinoin Gap is determined individually by the prescribing clinician based on the patient’s weight, severity of acne, and laboratory monitoring. No standard dose is provided here; the prescriber will set an appropriate regimen.

Isotretinoin Gap is classified as pregnancy category X because it is highly teratogenic. It must not be used by pregnant or nursing women, and effective contraception is required before, during, and after treatment to prevent fetal exposure.

To 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.

Compared with oral antibiotics, isotretinoin offers a disease‑modifying effect that can produce long‑term remission after a finite course, whereas antibiotics only suppress bacterial growth temporarily. Unlike hormonal therapies, isotretinoin works directly on sebaceous glands and keratinisation, making it suitable for both male and female patients with severe acne.

Store the product below 25 °C in its original container, protecting it from moisture and direct sunlight. Keep the packaging tightly closed and out of reach of children. Do not refrigerate or freeze the tablets, as temperature extremes can affect stability.

Isotretinoin Gap is taken orally, usually with a meal to improve absorption and reduce gastrointestinal irritation. The tablet should be swallowed whole with water; it is not intended for crushing, chewing, or dissolving.

The most critical risks include severe birth defects if exposure occurs during pregnancy, mood changes such as depression or suicidal thoughts, inflammatory bowel disease flare‑ups, and significant liver enzyme elevations. Patients should report any concerning symptoms to their healthcare provider promptly.

Individuals who are pregnant, planning to become pregnant, or breastfeeding should avoid isotretinoin. Patients with pre‑existing liver disease, uncontrolled hyperlipidaemia, or those taking high‑dose vitamin A supplements should also be excluded unless a specialist determines it is safe.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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