I-Tyza Capsule is an antifungal medicine used to treat fungal infections of the mouth, throat, toenails, fingernails or lungs. It contains Itraconazole, which works by killing fungi. Some people may experience side effects such as nausea, headache, diarrhoea, tiredness, cough, cold, throat pain, back pain and stomach pain. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.