Fluconazole is a first-generation triazole antifungal medication. It differs from earlier azole antifungals (such as ketoconazole) in that its structure contains a triazole ring instead of an imidazole ring. While the imidazole antifungals are mainly used topically, fluconazole and certain other triazole antifungals are preferred when systemic treatment is required because of their improved safety and predictable absorption when administered orally. Fluconazole's spectrum of activity includes most Candida species (but not Candida krusei or Candida glabrata), Cryptococcus neoformans, some dimorphic fungi, and dermatophytes, among others. Common uses include: Fungal resistance to drugs in the azole class tends to occur gradually over the course of prolonged drug therapy, resulting in clinical failure in immunocompromised patients (e.g., patients with advanced HIV receiving treatment for thrush or esophageal Candida infection). albicans, resistance occurs by way of mutations in the ERG11 gene, which codes for 14α-demethylase. These mutations prevent the azole drug from binding, while still allowing binding of the enzyme's natural substrate, lanosterol. glabrata is increasing the rate of efflux of the azole drug from the cell, by both ATP-binding cassette and major facilitator superfamily transporters. Development of resistance to one azole in this way will confer resistance to all drugs in the class. Other gene mutations are also known to contribute to development of resistance. Diflucan is used to treat infections caused by fungus, which can invade any part of the body including the mouth, throat, esophagus, lungs, bladder, genital area, and the blood. Diflucan is also used to prevent fungal infection in people who have a weak immune system caused by cancer treatment, bone marrow transplant, or diseases such as AIDS. Certain other drugs can cause unwanted or dangerous effects when used with Diflucan, especially cisapride, erythromycin, pimozide, and quinidine. Tell each of your healthcare providers about all medicines you use now, and any medicine you start or stop using. Before taking Diflucan, tell your doctor if you have liver disease, kidney disease, a heart rhythm disorder, or a history of Long QT syndrome. Take Diflucan for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared.
Store the tablets at room temperature away from moisture and heat. You may store liquid Diflucan in a refrigerator, but do not allow it to freeze. Throw away any leftover liquid that is more than 2 weeks old. DIFLUCAN is a tablet you swallow to treat vaginal yeast infections caused by a yeast called Candida. DIFLUCAN helps stop too much yeast from growing in the.