劑

A phono-semantic compound composed of:

刀 (knife; cutting tool) — semantic component, indicates cutting, dividing, or processing, especially measured preparation;

齊 (even; uniform) — phonetic component, supplies the sound "je / jì" and contributes the idea of uniformity and proper proportion.

Together, the structure conveys cutting and combining ingredients evenly, an apt image for medicinal compounding.

劑 originally referred to the act of preparing medicine, particularly:

- measuring ingredients;

- cutting or dividing substances;

- combining them into a usable form.

The noun sense “a prepared medicine” developed directly from this action.

In Korean, 劑 is highly productive in medical and pharmaceutical terminology.

Traditional medicine:

약제 (藥劑) — medicinal preparation

탕제 (湯劑) — decoction

산제 (散劑) — powdered medicine

Modern medicine / pharmacy:

조제 (調劑) — compounding / dosing

정제 (錠劑) — tablet

캡슐제 (膠囊劑) — capsule

주사제 (注射劑) — injectable

More abstractly, can mean to regulate, to adjust.

劑 emphasizes measured preparation, not raw substance.

Often contrasted with:

藥 — medicine in general

丹 — elixir (alchemical emphasis)

The character highlights formulation and dosage, key to medical efficacy.

Related characters:

藥 — medicine

製 — manufacture; prepare

湯 — decoction

散 — powder

丸 — pill

Among these, 劑 denotes medicine as a prepared form or dosage, rather than the substance itself.

Classical / literary usage:

合劑而服之 — “Combine the medicine and take it”

良劑可醫重病 — “A good preparation can treat severe illness”