Fluconazole 150 is used to treat fungal infections of the mouth, throat, vagina, and other parts of the body including fingernails and toenails. It kills fungi by destroying the fungal cell membrane thereby stopping the growth of fungi. should be taken in the dose and duration as prescribed by your doctor. The dosage and length of treatment will depend on the condition you are being treated for. Sometimes this will be in cycles of use and non-use. To get the most benefit, take this medicine at evenly spaced times and continue using it until your prescription is finished, even if your symptoms disappear after a few days. If you stop treatment too early, the infection may return and if you miss doses you can increase your risk of infections that are resistant to further treatment. his medicine may make you dizzy so do not drive or operate machines until it is safe. Take under medical supervision only.