Cochrane: Many
snake venoms cause coagulopathy in humans. Coagulopathy is a condition
in which the person’s blood is unable to clot because the venom causes
decreased levels of clotting factors. Coagulopathy increases the
risk
of bleeding. Antivenom is a treatment used to neutralise venom in
people who have been bitten by a snake. There is some evidence from
observational studies in humans which suggest that snake antivenom is
helpful to people who have been bitten by a snake. However, the use of
antivenom has some risks, and can cause allergic reactions.
