Zitrazole 100 Capsule contains Itraconazole 100 mg, a broad-spectrum triazole antifungal agent used for the treatment of various fungal infections. Itraconazole works by inhibiting the synthesis of ergosterol, an essential component of fungal cell membranes, thereby disrupting membrane integrity and leading to fungal cell death. This medication is indicated for the management of systemic and superficial mycoses, including aspergillosis, blastomycosis, histoplasmosis, onychomycosis, and candidiasis. Zitrazole 100 Capsule is administered orally and exhibits good bioavailability when taken with food, ensuring effective plasma concentrations. The pharmacokinetic profile allows for once or twice-daily dosing depending on the severity and type of infection. It is important to monitor liver function tests during prolonged therapy due to the potential for hepatotoxicity. Contraindications include hypersensitivity to itraconazole or other azole antifungals, and caution is advised in patients with congestive heart failure or hepatic impairment. Drug interactions are notable, as itraconazole is a potent inhibitor of cytochrome P450 3A4, which may increase plasma levels of concomitant medications. Patients should adhere strictly to prescribed dosages and complete the full course to prevent resistance and ensure therapeutic success.