Painkillers' (The item, not the affliction) previous purpose was a weak, long term healing effect. Translating it into a weak, long term painkilling effect would tread on the toes of morphine, which already does that. Diamorphine has the same issue, but with fentanyl filling its role instead. It was previously an extremely fast, emergency healer with big risks and costs. Translating it into a powerful, immediate painkiller effect fills the role of fentanyl.
Painkillers' (The item, not the affliction) previous purpose was a weak, long term healing effect. Translating it into a weak, long term painkilling effect would tread on the toes of morphine, which already does that. Diamorphine has the same issue, but with fentanyl filling its role instead. It was previously an extremely fast, emergency healer with big risks and costs. Translating it into a powerful, immediate painkiller effect fills the role of fentanyl.
We need to:
Alternatively, both could be removed.