‘药剂’ (yào jì) literally combines 药 (yào), meaning ‘medicine’ or ‘drug’, and 剂 (jì), meaning ‘dose’, ‘preparation’, or ‘formulation’. Together, it refers to a pharmaceutical preparation — a specific form of medicine ready for use, such as a tablet, capsule, injection, syrup, or ointment. Unlike the broader term 药物 (yàowù, ‘medicinal substances’) or 药品 (yàopǐn, ‘pharmaceutical products’), 药剂 emphasizes the prepared, dosage-form aspect — how the active ingredient is formulated for safe and effective delivery.

This word is commonly used in clinical, pharmacy, and regulatory contexts — for example, when discussing compounding, dispensing, or quality control of medicines. It appears in professional titles like 药剂师 (yào jì shī, ‘pharmacist’) and institutions like 药剂科 (yào jì kē, ‘pharmacy department’). While understandable to general speakers, 药剂 sounds more technical than everyday terms like 药 (yào) or 药片 (yàopiàn, ‘tablet’).