Moxisylyte, also known as thymoxamine, is a drug used in urology for the treatment of erectile dysfunction, also was studied, that this drug may be useful to treat ocular disorders such as diabetic retinopathy. It is an alpha1-adrenergic antagonist. Was developed for self-injection therapy in France and marketed in several European countries as Icavex. In the spring 2005 the manufacturer of Icavex decided to withdraw this drug from Europe market, presumable due to its low market shares.