DayZ field wiki · Medical
Anti-chem
Gas is a room, not a vibe
Short answer
Contaminated zones and chemical hits have a counter, not a shrug. NBC gear is the other door.
Also: anti chem injector · chem injector · atropine
How it works
Anti-chem injectors exist for chemical trouble. They are not tetracycline. They are not a well.
What to do
If you walked the fog, treat it as a medical event. See gas-zones. Don't loot the fog.
Don't
Don't invent a duration table. Don't use it as a vitamin.