Isotroin 30 Capsule contains isotretinoin 30mg, a retinoid derivative primarily indicated for the treatment of severe recalcitrant nodular acne that is unresponsive to conventional therapies such as antibiotics and topical agents. Isotretinoin acts by reducing sebaceous gland size and sebum production, inhibiting comedogenesis, and exhibiting anti-inflammatory properties, thereby targeting multiple pathogenic factors involved in acne development. The capsule formulation ensures precise dosing and systemic absorption. Due to its potent teratogenic effects, Isotroin 30 must be prescribed with caution, particularly in females of childbearing potential, who should adhere to strict pregnancy prevention measures before, during, and after treatment. Common adverse effects include dryness of skin and mucous membranes, cheilitis, photosensitivity, and transient elevations in liver enzymes and lipid profiles, necessitating regular monitoring of hepatic function and lipid levels during therapy. Patients should avoid excessive sun exposure and use emollients to manage dryness. Isotroin 30 is contraindicated in pregnancy, lactation, and patients with hypersensitivity to isotretinoin or vitamin A derivatives. This medication requires initiation and supervision by a dermatologist or healthcare professional experienced in acne management to ensure safety and efficacy.