A bloodsucker. This symbiotic burst-rifle leeches health to forge its ammo and then restores health with each headshot.

The Hema is a burst-fire Infested rifle that requires a sacrifice of health in order to reload, but in turn uses no ammunition and fires accurate three round bursts of Viral b Viral agents that can reduce the max and current health of an enemy by half. The weapon also inflicts lifesteal upon headshots, converting a percentage of damage dealt to enemies into health for the player.

Manufacturing Requirements
Time: 12 hrs
Rush: Platinum64 35
MarketIcon Market Price: Platinum64 225 Blueprint2 Blueprints Price:Credits6415,000
Bio Lab Research ClanAffinity64 10,000
Time: 72 hrs
Prereq: Torid
LeaderBadgeGhostHolo x1   LeaderBadgeShadowHolo x3   LeaderBadgeStormHolo x10   LeaderBadgeMountainHolo x30   LeaderBadgeMoonHolo x100


This weapon deals Viral b Viral damage.


  • Innate Viral b Viral damage – effective against Flesh and Cloned Flesh.
    • Viral b Viral procs halve current and max enemy health.
  • High status chance.
  • Headshots will restore health to the player, equal to 10% of the damage dealt.
  • High accuracy and low recoil for a burst weapon.
  • Does not use ammo pickups, and can thus never run out of ammo.


  • Innate Viral b Viral damage – less effective against against Machinery and Infested.
  • Low critical chance.
  • Projectiles have travel time and low flight speed.
  • Linearly less efficient – sometimes a target may only die with 4 bullets, which requires an entire second burst to be fired.
  • Punishes missed shots more than automatic weapons.
  • Reloading will drain the player's health, depending on how much ammo needs to be replenished, up to 3% of the player's max health if the magazine is entirely depleted.

Weapon LoadoutsEdit


  • The Hema is considered to be one of the most expensive weapon to research in the Bio Lab requiring a base of 5,000 Mutagen Samples to research.
  • The Hema is a highly accurate rifle that heals the player on headshots. To reload however, the player must lay out their arm as the weapon sucks some of their health. It will drain up to 3% of the player's max health depending on how much ammo needs to be replenished to the magazine. With the unmodded magazine size of 60, each bullet reloaded drains 0.05% max health.
    • If the player is at 3 or lower health, it will not reload and the player will have no ammo until they get more health.
  • Increasing magazine size does not increase the health drain per magazine. Thus, it decreases the drain per bullet.
  • It can be considered a more effective anti-Grineer and Corpus version of the InfQuantaRifle Paracyst, as its base Viral b Viral damage allows for Corrosive b Corrosive and Heat b Heat for Grineer, or Toxin b Toxin and Radiation b Radiation for Corpus.


  • Like all burst fire weapons in Warframe, you must time your clicks in order to fire the weapon at its maximum speed. Mashing the fire button will only stall and fire the weapon at different rates. Frame rates below ~30 FPS will also begin to slow the weapon down.
  • The weapon doesn't require ammo pickups, meaning there is no risk of running out of ammo in endless missions provided the player still has health.
  • Using InarosIcon272 Inaros or NidusIcon272 Nidus is highly suggested due to their high base health, their various means of self-healing, and the latter's innate health regeneration.
  • Regenerating ammo via Mod TT 20pxTactical Reload does not drain the player's health.


  • The Hema is the first weapon in Warframe that drains the player's health in order to reload.
  • Hema is a word derived from the Greek word haima (αἷμα), meaning 'blood', and is used as a prefix to refer to objects or conditions relating to blood, e.g. "Hematology", "Hematoxin", etc.
  • The health drained by the Hema on reloading contributes to Chroma's Fury buff from Vex Armor, albeit in very small amounts.
  • This is the second non-Archwing weapon in the game to have infinite/rechargeable ammunition after the Cycron Cycron and the first primary weapon with such a feature, with the CorpusLaserRifle Flux Rifle later following this trend.


  • Hema in Codex.


Patch HistoryEdit

Update 22.14
  • Added FX to Hema headshots to give it a nice leechy feel!
  • Increased headshot sound on the Hema.
  • You now need a minimum of 3 Health to reload the Hema. Ammo capacity stat is also hidden as it is not required.
  • More fixes towards reducing max Ammo Mods affecting the Hema Ammo pool leading to incomplete clip reloads.

Update 22.12

  • Damage increased from 45 to 47.
  • Critical chance increased from 7.5% to 11%.
  • No longer requires or consumes Rifle ammo.
  • Improved projectile trail FX.

Update 19.5

  • Introduced.
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