noun
medicine left by a salesman, paid for when used
Refers to a traditional system where a pharmaceutical salesperson leaves a box of common medicines at a household or business, and the customer pays only for what they consume. The salesperson periodically returns to restock and collect payment.
田舎の祖母の家には、今でも配置薬の箱が置いてある。
At my grandmother's house in the countryside, there is still a box of medicine left by a salesman.
配置薬の営業マンが定期的に薬の補充と集金に来る。
The salesman for the medicine-on-consignment system comes regularly to restock and collect payment.