I Lax 20mg Capsule contains isotretinoin, a retinoid derivative primarily indicated for the treatment of severe recalcitrant nodular acne that is unresponsive to conventional therapies such as systemic antibiotics and topical treatments. Isotretinoin acts by reducing sebaceous gland size and sebum production, normalizing follicular keratinization, and exhibiting anti-inflammatory properties, thereby addressing multiple pathogenic factors of acne. Each capsule delivers 20mg of isotretinoin, administered orally, with dosage individualized based on patient weight and clinical response, typically ranging from 0.5 to 1 mg/kg/day divided into two doses. Treatment duration usually spans 15 to 20 weeks, with careful monitoring to minimize adverse effects. Common side effects include dry skin, cheilitis, conjunctivitis, and transient elevations in liver enzymes and lipid profiles. Due to its teratogenic potential, strict pregnancy prevention measures are mandatory for women of childbearing potential during therapy and for at least one month post-treatment. Regular laboratory evaluations, including liver function tests, lipid panels, and pregnancy tests, are essential throughout the treatment course. I Lax 20mg Capsule should be prescribed and monitored by healthcare professionals experienced in isotretinoin therapy to ensure efficacy and safety.