Key Takeaways Diflucan (fluconazole) is a widely used antifungal medication with various dosing schedules depending on the type of infection and the patient's age. Typical adult doses range from a single 150 mg dose for vaginal yeast infections to daily doses up to 400 mg for serious fungal infections. Children’s dos. Fluconazole (Diflucan) is generally well-tolerated, but some people can experience side effects like headache, nausea, and stomach pain. Fluconazole (Diflucan) can raise the risk of liver problems, so you're recommend to avoiding drinking alcohol while taking this medication. Diflucan (Fluconazole) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Fluconazole is a prescription antifungal used to treat yeast and fungal infections like thrush, vaginal candidiasis, and cryptococcal meningitis in various body sites. Diflucan (fluconazole) is used to treat and prevent fungal infections. Includes Diflucan side effects, interactions and indications. Fluconazole tablets (Diflucan) are an antifungal medication that prevents and treats fungal or yeast infections. Diflucan is a tablet taken by mouth that is used to treat vaginal yeast infections caused by a yeast called Candida. Diflucan helps stop the yeast from growing. Find patient medical information for Fluconazole (Diflucan) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Description Fluconazole is used to treat serious fungal or yeast infections, including vaginal candidiasis, oropharyngeal candidiasis (thrush, oral thrush), esophageal candidiasis (candida esophagitis), other candida infections (including urinary tract infections, peritonitis [inflammation of the lining of the stomach], and infections that may occur in different parts of the body), or fungal. Diflucan is a prescription medication used to treat fungal infections in various parts of the body including the mouth, throat, genitals, brain, urinary tract, lungs and other organs. It is also used to prevent fungal infection in people with a weak immune system. Diflucan is in a group of drugs called azole antifungals which work by inhibiting a fungal enzyme needed for the fungus to grow.