[quote=“Coolthulhu, post:2, topic:13616”]It should work as with mutagen. Must be a bug then.
Or possibly mods. Are the serums from the core game or a mod?[/quote]
Core game.
The mutagens works. For the serum, they just seem to think that I’m giving it to them as a weapon. I’ve given them a syringe through trade, and also took the weapon they’re wielding, and when I give them the serum they start wielding it as a weapon. If I give them back the weapon they were wielding they don’t do anything with the serum.
I used debug to wish for a serum that’s not in a container, and giving it to them makes them use it.