Intraspecific differences in venom and envenomation symptoms.

Envenomation by is very frequent in Iran, especially in the south-west This scorpion is one of the six scorpions whose venom is used to prepare anti-venom. Using HPLC, we discovered venom components of varies from one specimen to another depending on geographical location, and this result is confirmed by those first found in various symptoms of sting in envenomed persons from two separate geographical places (north and south of Khuzestan province). There was a significant relationship between symptoms and location of envenomation by . Muscle spasm was more dominant in envenomed people from Northern cities, and venom chromatogram analysis showed the presence of at least six main sharp peaks in Northern rather than Southern . It shows intraspecific differences in venom of that must be considered in treatment of stung people from different geographical locations as well as in the preparation of anti-venom. See also Figure 1(Fig. 1).