|“|| Ukrainian Vikasolum - an artificial equivalent of vitamin K. The main purpose of this drug is to increase blood coagulation speed. In great demand among stalkers who want slow-healing wounds and lacerations inflicted by mutants to close up faster. The effects of the drug are long-lasting.|
- Ingame item description.
Vinca is a type of drug appearing in S.T.A.L.K.E.R.: Call of Pripyat.
There are more than enough things in The Zone that cause bruises, abrasions, lacerations, and other wounds. All these things, if not taken care of, would eventually conclude to bleeding and a bleeding stalker is pretty much a dead stalker. Thus, Vinca may save a stalker's life on more than one occasion.
Remember, stalker: Bloodsuckers didn't earn their name just to scare little children.