Flask of Venom

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Flask of Venom
  • Flask of Venom item spriteold Flask of Venom item sprite
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
Use time17 (Very fast)
TooltipMelee and Whip attacks inflict Acid Venom on enemies
RarityRarity level: 4
Sell5 SC
Research20 required
Grants Buff
BuffWeapon Imbue: Acid VenomWeapon Imbue: Acid Venom
Buff tooltipMelee attacks inflict acid venom on your targets
Duration20 minutes (Desktop, Console and Mobile versions)
15 minutes (Old-gen console and 3DS versions)

The Flask of Venom is a Hardmode, post-Plantera flask that causes melee weapons and whips(Desktop, Console and Mobile versions) to inflict the Acid Venom debuff for 5–9 seconds on enemies hit. Melee weapons that fire projectiles will also inflict the debuff on enemies hit by the projectiles (except for the Flairon's bubbles).

The Flask of Venom cannot be used in conjunction with other flasks, and using it will remove any existing flask effects. (Desktop, Console and Mobile versions) Like all other flasks, the effect will not be canceled when the player dies.

The Flask of Venom will not inflict the Acid Venom debuff in PvP scenarios.Verify



ResultIngredientsCrafting station
Flask of VenomFlask of VenomImbuing StationImbuing Station


  • Desktop 1.4.1:
    • Flasks are now also applied to whips.
    • Changed buff tooltip from "Melee attacks inflict venom on your targets" to "Melee attacks inflict acid venom on your targets".
  • Desktop
    • Flasks now last across death.
    • Buff duration increased from 15 to 20 minutes.