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 their cell membrane formation. Commonly prescribed for conditions such as vaginal yeast infections, oral thrush, and cryptococcal meningitis, fluconazole is available in tablet, suspension, and intravenous forms. It is generally well-tolerated and often used in both short-term and long-term treatment plans, depending on the infection type and severity.