It's called Ketaconazole. Ketaconazole is used to treat fungal infections such as athletes foot, candida, thrush. It can take several months of treatment to clear these infections up. You can see drug images of Ketaconazole at the site.
From your description it appears to be Ketoconazole 200mg, an antifungal antibiotic used to treat infections caused by fungus, in any part of the body including the mouth, throat, esophagus, lungs, bladder, or skin.
You can compare the picture on the following link and make sure they're the same:
Then, if you're interested in knowing more about it, read: http://www.healthsquare.com/drugs/87616.htm