Fluconazole is an antifungal medication used to treat and prevent a variety of fungal and yeast infections. It works by inhibiting the growth of fungi by interfering with the cell membrane formation. Commonly prescribed for conditions such as candidiasis (including vaginal, oral, and systemic infections), cryptococcal meningitis, and fungal infections in immunocompromised patients, fluconazole is typically available in oral tablets, suspension, or injectable forms. It is effective against a broad range of fungi, particularly Candida species.