restorative medicine; analeptic
Medical term for a medicine that restores strength or consciousness; also used in fantasy/game contexts for a potion that recovers health or stamina.
If you drink this restorative medicine, your strength will return quickly.
In the game, I used a recovery potion to restore my HP.
Compound of 回復 (recovery) + 薬 (medicine). The exact historical derivation is uncertain, but the word follows a common pattern for naming medicinal products.