*so, once upon a time.... Anti Venom : I will eradicate you and your damn cursed symbiote suit, Venom! Venom : SHUT UP BROCK! Spidey : oowww you guys are perfect couple, i think this will be great for your Twitter Avatar guys, Cheers!
Some of Anti Venom's abilities are contra to Venom abilities, more like curing anyone who has been infected by symbiote. Anti Venom's host is Eddie Brock, formerly Venom's Host. But now Venom is hosted by Flash Thompson, a big guy who bullied Peter Parker when they are at High School, He is a good guy now
Flash (who lost both of his legs during war) is actually military experiment that involving venom symbiote that has already tamed by scientist. Flash have to control his emotion or he will be turend into real venom. You can read "Agent Venom" for further information, awesome series i think