This is a very (small, baby) mod that modifies the tuning for the study apothecary cures interaction. It is no longer time based, the Sims will now only quit the interaction if their motives are failing or you cancel it.
They will be trapped inside an apothecarial hell until you wish for them to cease.
Note that this interaction still moves the skill bar at a slower pace than the crafting interaction does, but they do it forever now so... fair trade off, I suppose.