Marvel Database
For the new Agent Anti-Venom, see: Anti-Venom III (Symbiote) (Earth-616)

Quote1.png Yeah... I'm good. And not Venom. So not Venom. In fact... it looks like I'm... What'd we used to call you, Brock? I'm Anti-Venom! Quote2.png
Anti-Venom (Flash Thompson)[src]


Suspecting that the Venom symbiote would develop an immunity to the medication he had developed for its toxic shock syndrome, Alchemax astrobiologist Dr. Steve began creating a new cure derived from the Anti-Venom symbiote.

Desiring to reclaim the symbiote and become Agent Venom again, Flash Thompson confronted its host, Eddie Brock, at Alchemax's astrobiology lab. Conflicted over having to choose one of its two favorite hosts over the other, Venom attempted to bond to both of them at the same time. Spider-Man intervened intending to kill the symbiote and "save" both Flash and Eddie from it, overturning one of the vats of Anti-Venom serum. Flash was doused in it, and the symbiote biomass bonded to him was altered into an artificial replica of the original Anti-Venom symbiote.[1]

When it became known that the Poisons were using symbiotes to attack superheroes, Alchemax called in a favor to Flash to use the properties of his symbiote's antibodies. This turned out to be lethal to the consumed heroes leaving only a puddle with no sign of a human host inside. Although he likewise used them against consumed heroes, the Poisons perished after the Poison Queen was destroyed.[2]

When Norman Osborn used the Carnage Symbiote to become the Red Goblin and kill Spider-Man's relatives, Flash was forced to use the Anti-Venom Symbiote to heal their allies, leaving it weakened and unable to fully recover Flash in battle. When Agent Anti-Venom confronted the Red Goblin, it barely had any effect on him and Norman took this opportunity to kill Flash in cold blood, and his Anti-Venom symbiote along with him.[3]

Meeting with Flash in Codex Purgatory

Inspired by the second Anti-Venom symbiote's creation, Dr. Steven created mass-produced Anti-Venom battlesuits by mixing samples of Weapon V's Sym-Suits - cloned offshoots of the Grendel symbiote-dragon that had been lobotomized and severed from the Symbiote Hive-Mind to prevent them from taking over their hosts - with the Anti-Venom Serum.[4][5]

After that, the symbiote joined Flash in the Klyntar's Hive-Mind, where his consciousness was stored as a codex after his death. Together, they joined Rex Strickland's army of former symbiote hosts to battle the dark elder symbiote god Knull. Flash Thompson's codex was able to free the trapped symbiotes and join them by re-emerging in the real world as a white dragon-symbiote.

It is unclear what happened to the Anti-Venom symbiote in the Hive-Mind. Although it can be presumed that it was resurrected and is now part of the new Flash symbiote.


The Anti-Venom symbiote has yet to express an individual personality although the symbiote is not separated from the Symbiote Hive-Mind.[6]



  • Superhuman Strength
  • Superhuman Speed
  • Superhuman Stamina
  • Superhuman Durability
  • Superhuman Agility
  • Superhuman Reflexes
  • Webbing Generation
  • Accelerated Healing Factor
  • Wall-Crawling
  • ESP (Spider-Sense)
  • Spider-Sense Immunity
  • Adaptive Camouflage
  • Constituent-Matter Generation
  • Constituent-Matter Manipulation
  • Shapeshifting
    • Fangs and Claws
    • Wings
  • Genetic Memory
  • Night Vision
  • Healing Touch: The Anti-Venom symbiote was able to heal injuries as severe as dismemberment.[7]
  • External Symbiote Rejection: The Anti-Venom symbiote was able to produce antibodies capable of injuring and even killing other symbiotes.[8][3]
  • Fire immunity


The symbiote has the ability to heal people from wounds and cleanse any impurities from their bodies.


Power Exertion: Just like the original symbiote, overuse of Anti-Venom's healing powers can weaken it, leaving its host exposed.[3]



With a host, the symbiont can manifest organic networks formed from constituent matter.


See Also

Links and References


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