How to say "cure-all" in Japanese

• 万病薬まんびょうやく
  nounCovers the 'heal-all' sense: a medicine said to cure any illness, the emphasis falling on the diseases themselves. A less common word; use it when describing a remedy that cures whatever ails the patient.
• 万能薬ばんのうやく
  nounCovers 'cure-all' as a universal medicine: a drug effective for a whole range of ailments, its nuance stressing all-purpose usefulness. A less common word; use it for a medicine recommended for nearly any complaint.
  年来ねんらいの経済けいざい病びょうには手軽てがるにきく万能薬ばんのうやくなどありません。↗

  There is no easy cure-all for old economic ills.

Both are less common words for 'cure-all': choose 万病薬 for a remedy that cures every disease, and 万能薬 for a medicine effective across a whole range of conditions; both also translate 'panacea'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 万病薬まんびょうやくcure-all
• 万能薬ばんのうやくuniversal medicine