Isopil 5 Tablet contains isotretinoin 5 mg, a retinoid derivative used primarily for the treatment of severe recalcitrant nodular acne that is resistant to conventional therapies such as antibiotics. Isotretinoin acts by reducing sebaceous gland size and sebum production, inhibiting the growth of acne-causing bacteria, and exhibiting anti-inflammatory properties. This medication is indicated for patients with severe cystic acne or nodular acne that has not responded adequately to other treatments. Isopil 5 should be administered under strict medical supervision due to its potential for serious adverse effects, including teratogenicity, hepatotoxicity, and lipid abnormalities. Patients must undergo regular monitoring of liver function tests, lipid profiles, and complete blood counts during therapy. It is contraindicated in pregnancy and in patients with hypersensitivity to isotretinoin or any of its components. Women of childbearing potential must use effective contraception prior to, during, and after treatment to prevent fetal exposure. Common side effects include dry skin, cheilitis, and photosensitivity. Due to its potent effects and risk profile, Isopil 5 Tablet should be prescribed only by dermatologists experienced in isotretinoin therapy, with careful patient education and follow-up to ensure safety and efficacy.