Sodium stibogluconate belongs to the class of medicines known as the pentavalent antimonials used  to treat leishmaniasis.  Sodium stibogluconate is sold in the UK as Pentostam (manufactured by GlaxoSmithKline) and is only available for administration by injection. Widespread resistance has limited the utility of sodium stibogluconate, and in many parts of the world, amphotericin or miltefosine are used instead.