Itraconazole 200 mg capsules are a prescription antifungal medication used to treat a variety of fungal infections. They work by inhibiting the growth of fungi, preventing them from spreading in the body. Commonly prescribed for infections such as aspergillosis, blastomycosis, histoplasmosis, and certain types of nail fungus, itraconazole is effective in both systemic and localized infections. The capsules are usually taken orally with food to enhance absorption, and the dosage and duration depend on the type and severity of the infection. Patients should follow their doctor’s instructions carefully, as improper use can lead to reduced effectiveness or resistance. Side effects may include nausea, stomach upset, headache, or liver enzyme changes