Antiserum

Antiserum: Broad antibiotic with disinfection and blood volume; immunity does not stack, only duration. In-game item, not medical advice.

Use, trade-offs and mechanics

Antiserum combines immunity, disinfection and sepsis reduction, rather than acting as a simple interchangeable antibiotic bottle. The community reference gives a fifty-milliliter automatic injection: it adds five minutes of immunity time, disinfects the target and adjacent limbs for two and a half minutes, lowers sepsis and adds a small amount of blood volume.

Those effects have separate scaling rules. Immunity increases by seventy while the timed immunity effect remains active. Taking another antibiotic extends the time instead of stacking multiple seventy-point immunity boosts. The local disinfection duration also stops increasing above the reference's fifty-milliliter amount, although smaller amounts shorten it. More liquid therefore does not multiply every benefit in the same way.

The liquid is non-craftable, is not used in recipes in the entry and is found in antiserum syringes or mini-barrels. Dragging the syringe onto a limb in the health panel is the documented automatic-injection interaction. Drinking from the inventory is a different route. One hundred milliliters drunk gives immunity time but also substantial sickness, and the listed injection-specific package should not be assumed to carry over.

Compare antiserum with ceftriaxone by their actual effects and availability. Ceftriaxone's immunity duration is volume-based and its injection adds limb pain; antiserum additionally addresses disinfection and sepsis directly. An infection's location, existing sepsis and remaining immunity time are more useful decision points than the shared label antibiotic.

Documented properties