Patent ID: 7208150

Claim:
A substantially non-toxic analgesic fraction isolated from snake venom, the substantially non-toxic analgesic fraction having an analgesic effect after a lag period, and the snake is selected from the group of snake families consisting of Atractaspidae, Elapidae, Crotalidae, Hydrophidae and Viperidae, with the exception of Vipera Xanthina, wherein the substantially non-toxic analgesic fraction has the characteristics of a fraction purified from snake venom by FPLC Mono Q ion-exchange chromatography carried out using an eluent comprising a mixture of 20 mM Tris-HCL buffer pH 7.0 and 20 mM Tris/0.5 M NaCl buffer, where the substantially non-toxic analgesic fraction elutes at 12–28 minutes during an elution period of 45 minutes.