Gyno Mikozal 200mg Vaginal Ovules is a medication commonly used for the treatment of fungal infections in the vaginal area, such as vaginal candidiasis (yeast infections). The active ingredient in Gyno Mikozal is Miconazole, which is an antifungal agent.The 200mg dosage is typically inserted into the vagina as a suppository or ovule, usually at bedtime for several days as directed by your doctor. Miconazole works by interfering with the cell membrane of the fungus, effectively stopping its growth and allowing the body's immune system to clear the infection.