The HUD of the mod, mutagens are shown on the low-left corner.
Crafting recipe for the syringe.
Crafting recipe for vaccine, regardless of the level of mutagens and shapeless.
An exemple of the wingen as level IV.
Here is the recipe to upgrade mutagens. You need to get 9 mutagens of the same type and the same level (here are 9 Damagen II), it will result in a mutagen with an higher level. Max level is V.
Crafting recipe for the antidote. This is shapeless, and you can use all sorts of plants in minecraft, some are more healthier than others. Try to find out the best antidote recipe !