Sodium stibogluconate (SSG Stibogluconate trisodium nonahydrate Lenocta VQD-001) a pentavalent antimony derivative is a potent and selective inhibitor of protein tyrosine phosphatase (PTPase) Sodium stibogluconate inhibits 99% of Src homology 2 domain-containing phosphatase 1 (SHP-1) activity at 10 g/ml and similar degrees of inhibition of SHP-2 and PTP1B requires 100 g/ml Sodium stibogluconate is a drug used in treatment of leishmaniasis