noun
miraculous medicine; miracle drug; wonder drug
Refers to a medicine with extraordinary, almost magical healing effects. Often used in fantasy, mythology, or metaphorical contexts.
伝説の霊薬はどんな傷もたちまち癒すと言われている。
The legendary miraculous medicine is said to instantly heal any wound.
Compound of 霊 (rei, 'spirit, soul, miraculous') and 薬 (yaku, 'medicine'). The exact historical derivation is uncertain, but the combination naturally conveys a medicine with spiritual or miraculous power.