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Item icon
Item altar
"Double tap sneeze"
Table dividing line 1.png
Item ID
Table dividing line 2.png
Table dividing line 3.png
Collection Grid
(page 6, column 13, row 6)
Unlock Method
Hemoptysis Defeat Delirium as Tainted Azazel Tainted Azazel
Added in Repentance

Hemoptysis is a passive item added in The Binding of Isaac: Repentance.

Effects[edit | edit source]

  • Double-tapping a fire button causes Isaac to sneeze blood, dealing damage to enemies in front of him. The sneeze deals damage equal to 1.5x Isaac's damage and pushes enemies back. If the enemy is pushed into a wall/obstacle, they take 10 damage and deal 10 damage to enemies they collide with.
    • The sneeze has a cooldown of 1 second.

Notes[edit | edit source]

Synergies[edit | edit source]

  • 15►Fire Mind Fire Mind: The sneeze will still set enemies on fire, but not cause explosions.
  • 15►Lost Contact Lost Contact: The sneeze reflects enemy shots.
  • 15►The Wiz The Wiz: Shoots two sneezes diagonally instead of one straight forward.
  • 15►Loki's Horns Loki's Horns: Chance to sneeze in all directions.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • Hemoptysis is the medical term for coughing up blood.
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