Description
Skin fine iso (Isotretinoin) 20 mg
Skin fine iso 20 mg is an oral isotretinoin capsule, a systemic retinoid used for severe recalcitrant nodular acne. The verified active ingredient is isotretinoin, and the 20 mg strength identifies the capsule content in this product listing.
Active Ingredient and Medicine Class
Isotretinoin is a retinoid, a vitamin A-related medicine. It is an oral systemic acne treatment, rather than a topical skin preparation. Official prescribing information identifies isotretinoin capsules as hard gelatin capsules for oral use containing isotretinoin USP.
Established Medical Uses
Isotretinoin capsules are indicated for the treatment of severe recalcitrant nodular acne in non-pregnant patients 12 years of age and older. Prescribing information reserves its use for patients whose severe nodular acne has not responded to conventional therapy, including systemic antibiotics.
Clinical reviews and prescribing resources consistently describe isotretinoin as one of the most effective treatments for severe acne, especially when inflammation, nodules, scarring risk, or treatment resistance are present.
How It Works
Isotretinoin reduces acne through several related actions. It inhibits sebaceous gland function and keratinization, which lowers sebum production and reduces the size and activity of sebaceous glands. The exact full mechanism in acne is not completely known, but the reduction in sebum and normalization of follicular blockage are considered central to its effect.
Important Safety Information
Isotretinoin has major safety restrictions because it can cause severe harm in pregnancy. It is contraindicated in pregnancy and in patients with hypersensitivity to isotretinoin or related components. It is also supplied under a restricted risk-management program in the United States.
Important interaction concerns include tetracycline antibiotics, which should be avoided because of the risk of intracranial hypertension, and vitamin A supplements, which may increase retinoid-related adverse effects. Prescribing information also warns about psychiatric symptoms, pancreatitis, lipid abnormalities, hepatotoxicity, inflammatory bowel disease, musculoskeletal effects, and ocular problems.
Possible Side Effects
Common adverse effects include dry lips, dry skin, dry eye, back pain, arthralgia, epistaxis, headache, cheilitis, and reduced visual acuity. Other recognised effects include mucocutaneous dryness, musculoskeletal discomfort, and laboratory abnormalities such as elevated triglycerides or liver enzymes.
Serious but less common reactions can include embryo-fetal toxicity, depression or other mood changes, intracranial hypertension, pancreatitis, severe skin reactions, and significant lipid or liver abnormalities.
Scientific Evidence
Human clinical literature supports isotretinoin as a highly effective therapy for severe acne, with lasting remission in many patients. Reviews describe its benefit in severe, recalcitrant nodular acne and note that its adverse effects are often dose-related, especially mucocutaneous dryness. More recent review literature continues to support its role in moderate-to-severe acne when other therapies are insufficient or inappropriate.
Medical Information Notice
This summary is intended for educational purposes only and is based on sources available at the time of review. It does not replace the official patient leaflet, product labeling, or individual assessment by a qualified healthcare professional.
Medical Sources
- DailyMed / U.S. prescribing information Isotretinoin capsules, oral use. View official prescribing information
- DailyMed / U.S. prescribing information Isotretinoin capsules, oral use. View official prescribing information
- J A Rumsfield et al. Isotretinoin in severe, recalcitrant cystic acne: a review. Drug Intelligence & Clinical Pharmacy, 1983. View scientific article
- Laura Wollenberg et al. The use of isotretinoin for acne – an update on optimal dosing, surveillance, and adverse effects. Expert Review of Clinical Pharmacology, 2020. View scientific article




