Haloprogin is an active synthetic antifungal and antimonilial agent that was effective in the treatment of superficial fungal and monilial infections of the skin. Because of these two basic therapeutic effects, haloprogin was especially useful in the treatment of infections when the identity of the specific causative organism had not been established or is being determined. Studies in-vitro demonstrated antifungal, antimonilial and antibacterial activity. It was shown to demonstrate marked in-vitro activity against Staphylococcus and Streptococcus. Haloprogin is no longer available in the US.