AF 400 Tablet contains Fluconazole (400mg), an antifungal medication used to treat a variety of fungal infections, including those affecting the mouth, throat, esophagus, lungs, bladder, genital area, and blood. Fluconazole works by inhibiting the synthesis of fungal cell membranes, thereby stopping the growth and spread of the fungus. It is commonly prescribed for conditions like vaginal yeast infections, thrush, and certain systemic infections. Common side effects include headache, nausea, abdominal pain, and dizziness. Typically, the tablet is taken as a single dose or as prescribed by a healthcare provider. It is important to follow the prescribed dosage and consult a healthcare provider if any severe or persistent side effects occur, especially signs of liver issues like yellowing of the skin or eyes (jaundice).