Snake venom, horrifyingly enough, is really just complex saliva. And not all of it is created equal. Depending on the snake that bites you, your heart could shut down; your muscles could become paralyzed; or your blood could clot so much that it no longer flows.
Then there are hemotoxins. They go after your blood, destroying red blood cells or inducing coagulation — turning it from a thick, healthy liquid into a spongy, goopy mess. See the latter case for yourself:
Snake venom isn’t totally satanic. Medical science has been able to harness the toxicity of many types of venom to generate anti-cancer properties in cell cultures, produce antimicrobial compounds, and alleviate nerve pain. Although, when one drop of the stuff turns a glass of blood into a solid in a matter of seconds, it’s hard to believe venom is anything but pure evil