Ketoconazole 200mg scored tablet is used to treat fungal and yeast infections. It has also been used to treat Cushing's disease. Results of treatment may not be seen for 1 or 2 weeks and the duration of treatment may last up to several months. The usual dose for dogs and cats is 2.2-13mg/pound by mouth every 12 -24 hours depending on the disease. Do not use in pregnant or nursing animals.