How to say "medication" in Japanese

• 投薬とうやくCommon
  noun, suru verb, transitive verb, intransitive verbRefers to the administration of medication — a doctor giving or prescribing medicine to a patient — and can also cover dosage; a common word in medical settings.
  医者いしゃは患者かんじゃに投薬とうやくした。↗

  The doctor administered medicine to the patient.
• 薬物療法やくぶつりょうほう
  nounMeans pharmacotherapy or drug therapy: treating a condition by means of medication. It names the therapeutic approach rather than the medication itself, and is a less common word.
• 薬物投与やくぶつとうよ
  nounThe giving or administration of a drug — the act itself, viewed from the medical side. A less common word; for the general sense of 'medication' it is seldom the word you want.
• 薬物治療やくぶつちりょう
  nounDrug treatment or pharmacotherapy: treating an illness or condition with medication. Close in meaning to 薬物療法, it names the treatment rather than the medication itself; a less common word.

Use 投薬 for giving or prescribing medication to a patient, 薬物投与 for the act of administering a drug, and 薬物療法 or 薬物治療 for drug therapy — treatment with medication rather than the medication itself.

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

• 投薬とうやくadministration
• 薬物療法やくぶつりょうほうpharmacotherapy
• 薬物投与やくぶつとうよdrug administration
• 薬物治療やくぶつちりょうdrug treatment