How to say "dosage" in Japanese
Choosing the right word
- 投薬とうやくnoun, suru verb, transitive verb, intransitive verbMainly the act of administering medication — medicating a patient — rather than a measured amount; its 'dosage' gloss reflects that medicating sense, so for quantities a 量 word fits better.
- 投薬量とうやくりょうnounThe quantity of medication given: choose it when 'dosage' refers to how much medicine a patient receives, keeping the medicating nuance of 投薬.
- 薬量やくりょうnounLiterally 'medicine amount': the quantity of a drug itself, without the administering nuance of the other two 量 words; a less common way to say 'dosage'.
- 投与量とうよりょうnounThe amount of a drug administered, typical of medical and pharmacological contexts; a natural choice when 'dosage' or 'dose' concerns how much medicine is given to a patient.
When 'dosage' means the amount of medicine administered, use 投薬量 or 投与量; 薬量 is a plainer, less common 'medicine amount'; 投薬 alone is the act of medicating a patient, not a quantity.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
See also
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